<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">mrisel</journal-id><journal-title-group><journal-title xml:lang="en">Magnetic Resonance in Solids</journal-title><trans-title-group xml:lang="ru"><trans-title>Magnetic Resonance in Solids</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2072-5981</issn><publisher><publisher-name>Kazan Federal University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/mrsej-19410</article-id><article-id custom-type="elpub" pub-id-type="custom">mrisel-72</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group></article-categories><title-group><article-title>High-resolution optical and EPR spectroscopy in solid-state research</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="en"><p>Fizicheskaya 5, Troitsk, Moscow 108840</p></bio><email xlink:type="simple">popova@isan.troitsk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Institute of Spectroscopy, Russian Academy of Sciences</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>06</day><month>06</month><year>2019</year></pub-date><volume>21</volume><issue>4</issue><issue-title>SPECIAL ISSUE dedicated to Boris Z. Malkin's 80th birthday</issue-title><elocation-id>19410 (7 pp.)</elocation-id><permissions><copyright-statement>Copyright &amp;#x00A9; Popova M.N., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Popova M.N.</copyright-holder><copyright-holder xml:lang="en">Popova M.N.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.mrsej.ru/jour/article/view/72">https://www.mrsej.ru/jour/article/view/72</self-uri><abstract><p>A brief review is presented of high-resolution optical Fourier spectroscopy and EPR research on crystals containing 4f or/and 3d transition-metal ions, performed in the Institute of Spectroscopy RAS, in collaboration with the Kazan Federal University, the E.K. Zavoisky Kazan PhysicalTechnical Institute RAS, and many other institutions in Russia and abroad. The theoretical basis of these studies was developed by Boris Malkin.</p></abstract><kwd-group xml:lang="en"><kwd>dielectric crystals</kwd><kwd>rare earth ions</kwd><kwd>hyperfine structure</kwd><kwd>isotopes</kwd><kwd>crystal field</kwd><kwd>electron-phonon interaction</kwd><kwd>multiferroics</kwd><kwd>low-dimensional magnetics</kwd><kwd>phase transitions</kwd><kwd>high-resolution Fourier spectroscopy</kwd><kwd>EPR</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This work was supported in part by the Presidium of RAS under the Program No. 5 “Photonic technologies in probing inhomogeneous media and biological objects". The latest optical spectroscopy research was performed on the Unique Scientific Installation ofthe Institute of Spectroscopy “Multifunctional wide-range high-resolution spectroscopy" (http://www.ckp-rf.ru/usu/508571).</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Agladze N.I., Popova M.N. Solid State Commun. 55, 1097 (1985)</mixed-citation><mixed-citation xml:lang="en">Agladze N.I., Popova M.N. Solid State Commun. 55, 1097 (1985)</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Agladze N.I., Vinogradov E.A., Popova M.N. JETP 64, 716 (1986)</mixed-citation><mixed-citation xml:lang="en">Agladze N.I., Vinogradov E.A., Popova M.N. JETP 64, 716 (1986)</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Agladze N.I., Vinogradov E.A., Popova M.N. Opt. Spectrosc. (USSR) 61, 1 (1986)</mixed-citation><mixed-citation xml:lang="en">Agladze N.I., Vinogradov E.A., Popova M.N. Opt. Spectrosc. (USSR) 61, 1 (1986)</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Agladze N.I., Popova M.N., Zhizhin G.N., Egorov V.J., Petrova M.A. Phys. Rev. Lett. 66, 477 (1991)</mixed-citation><mixed-citation xml:lang="en">Agladze N.I., Popova M.N., Zhizhin G.N., Egorov V.J., Petrova M.A. Phys. Rev. Lett. 66, 477 (1991)</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Agladze N.I., Koreiba M.A., Malkin B.Z., Pekurovskii V.R., Popova M.N. JETP 77, 1021 (1993)</mixed-citation><mixed-citation xml:lang="en">Agladze N.I., Koreiba M.A., Malkin B.Z., Pekurovskii V.R., Popova M.N. JETP 77, 1021 (1993)</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Malkin B.Z., Saikin S.K. Proc. SPIE 2706, 193 (1996)</mixed-citation><mixed-citation xml:lang="en">Malkin B.Z., Saikin S.K. Proc. SPIE 2706, 193 (1996)</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Macfarlane R.M., Cassanho A., Meltzer R.S. Phys. Rev. Lett. 69, 542 (1992)</mixed-citation><mixed-citation xml:lang="en">Macfarlane R.M., Cassanho A., Meltzer R.S. Phys. Rev. Lett. 69, 542 (1992)</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Thiel C.W., Böttger T., Cone R.L. J. Lumin. 131, 353 (2011)</mixed-citation><mixed-citation xml:lang="en">Thiel C.W., Böttger T., Cone R.L. J. Lumin. 131, 353 (2011)</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Macfarlane R.M., Meltzer R.S., Malkin B.Z. Phys. Rev. B 58, 5692 (1998)</mixed-citation><mixed-citation xml:lang="en">Macfarlane R.M., Meltzer R.S., Malkin B.Z. Phys. Rev. B 58, 5692 (1998)</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Vinogradov E.A., Yakovlev V.A., Novikova N.N., Popova M.N., Saikin S.K., Malkin B.Z. Solid State Commun. 142, 256 (2007)</mixed-citation><mixed-citation xml:lang="en">Vinogradov E.A., Yakovlev V.A., Novikova N.N., Popova M.N., Saikin S.K., Malkin B.Z. Solid State Commun. 142, 256 (2007)</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Shakurov G.S., Vanyunin M.V., Malkin B.Z., Barbara B., Abdulsabirov R.Yu., Korableva S.L. Appl. Magn. Reson. 28, 251 (2005)</mixed-citation><mixed-citation xml:lang="en">Shakurov G.S., Vanyunin M.V., Malkin B.Z., Barbara B., Abdulsabirov R.Yu., Korableva S.L. Appl. Magn. Reson. 28, 251 (2005)</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Goldner P., Ferrier A., Guillot-Noël O. in Handbook on the Physics and Chemistry of Rare Earths, edited by Jean-Claude Bunzli and Vitalij Pecharsky, Vol. 46, Ch. 267, pp. 1-78, Elsevier Science, Amsterdam (2014)</mixed-citation><mixed-citation xml:lang="en">Goldner P., Ferrier A., Guillot-Noël O. in Handbook on the Physics and Chemistry of Rare Earths, edited by Jean-Claude Bunzli and Vitalij Pecharsky, Vol. 46, Ch. 267, pp. 1-78, Elsevier Science, Amsterdam (2014)</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Zhong M., Hedges M.P., Ahlefeld R.L., Bartholomew J.G., Beavan S.E., Wittig S.M., Longdell J.J., Sellars M.J. Nature 517, 177 (2015)</mixed-citation><mixed-citation xml:lang="en">Zhong M., Hedges M.P., Ahlefeld R.L., Bartholomew J.G., Beavan S.E., Wittig S.M., Longdell J.J., Sellars M.J. Nature 517, 177 (2015)</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Bertaina S., Gambarelli S., Tkachuk A., Kurkin I.N., Malkin B., Stepanov A., Barbara B. Nature Nanotechnology 2, 39 (2007)</mixed-citation><mixed-citation xml:lang="en">Bertaina S., Gambarelli S., Tkachuk A., Kurkin I.N., Malkin B., Stepanov A., Barbara B. Nature Nanotechnology 2, 39 (2007)</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Hedges M.P., Longdell J.J., Li Y., Sellars M.J. Nature 465, 1052 (2010)</mixed-citation><mixed-citation xml:lang="en">Hedges M.P., Longdell J.J., Li Y., Sellars M.J. Nature 465, 1052 (2010)</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Moiseev S.A. Phys. Rev. A 88, 012304 (2013)</mixed-citation><mixed-citation xml:lang="en">Moiseev S.A. Phys. Rev. A 88, 012304 (2013)</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Gerasimov K.I., Minnegaliev M.M., Malkin B.Z., Baibekov E.I., Moiseev S.A. Phys. Rev. B 94, 054429 (2016)</mixed-citation><mixed-citation xml:lang="en">Gerasimov K.I., Minnegaliev M.M., Malkin B.Z., Baibekov E.I., Moiseev S.A. Phys. Rev. B 94, 054429 (2016)</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Ahlefeldt R., Hush M., Sellars M. Phys. Rev. Lett. 117, 250504 (2016)</mixed-citation><mixed-citation xml:lang="en">Ahlefeldt R., Hush M., Sellars M. Phys. Rev. Lett. 117, 250504 (2016)</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Pytalev D.S., Chukalina E.P., Popova M.N., Shakurov G.S., Korableva S.L., Malkin B.Z. Phys. Rev. B 86, 115124 (2012)</mixed-citation><mixed-citation xml:lang="en">Pytalev D.S., Chukalina E.P., Popova M.N., Shakurov G.S., Korableva S.L., Malkin B.Z. Phys. Rev. B 86, 115124 (2012)</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N. Optical Materials 35, 1842 (2013)</mixed-citation><mixed-citation xml:lang="en">Popova M.N. Optical Materials 35, 1842 (2013)</mixed-citation></citation-alternatives></ref><ref id="cit21"><label>21</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Chukalina E.P., Malkin B.Z., Antic-Fidancev E., Porcher P., Chaminade J.P. Phys. Rev. B 63, 075103 (2001)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Chukalina E.P., Malkin B.Z., Antic-Fidancev E., Porcher P., Chaminade J.P. Phys. Rev. B 63, 075103 (2001)</mixed-citation></citation-alternatives></ref><ref id="cit22"><label>22</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Chukalina E.P., Malkin B.Z., Saikin S.K. Phys. Rev. B 61, 7421 (2000)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Chukalina E.P., Malkin B.Z., Saikin S.K. Phys. Rev. B 61, 7421 (2000)</mixed-citation></citation-alternatives></ref><ref id="cit23"><label>23</label><citation-alternatives><mixed-citation xml:lang="ru">Klimin S.A., Pytalev D.S., Popova M.N., Malkin B.Z., Vanyunin M.V., Korableva S.L. Phys. Rev. B 81, 045113 (2010)</mixed-citation><mixed-citation xml:lang="en">Klimin S.A., Pytalev D.S., Popova M.N., Malkin B.Z., Vanyunin M.V., Korableva S.L. Phys. Rev. B 81, 045113 (2010)</mixed-citation></citation-alternatives></ref><ref id="cit24"><label>24</label><citation-alternatives><mixed-citation xml:lang="ru">Malkin B.Z., Pytalev D.S., Popova M.N., Baibekov E.I., Falin M.L., Gerasimov K.I., Khaidukov N.M. Phys. Rev. B 86, 134110 (2012)</mixed-citation><mixed-citation xml:lang="en">Malkin B.Z., Pytalev D.S., Popova M.N., Baibekov E.I., Falin M.L., Gerasimov K.I., Khaidukov N.M. Phys. Rev. B 86, 134110 (2012)</mixed-citation></citation-alternatives></ref><ref id="cit25"><label>25</label><citation-alternatives><mixed-citation xml:lang="ru">Shakurov G.S., Chukalina E.P., Popova M.N., Malkin B.Z., Tkachuk A.M. Phys. Chem. Chem. Phys. 16, 24727 (2014)</mixed-citation><mixed-citation xml:lang="en">Shakurov G.S., Chukalina E.P., Popova M.N., Malkin B.Z., Tkachuk A.M. Phys. Chem. Chem. Phys. 16, 24727 (2014)</mixed-citation></citation-alternatives></ref><ref id="cit26"><label>26</label><citation-alternatives><mixed-citation xml:lang="ru">Malkin B.Z., Abishev N.M., Baibekov E.I., Pytalev D.S., Boldyrev K.N., Popova M.N., Bettinelli M. Phys. Rev. B, 96, 014116 (2017)</mixed-citation><mixed-citation xml:lang="en">Malkin B.Z., Abishev N.M., Baibekov E.I., Pytalev D.S., Boldyrev K.N., Popova M.N., Bettinelli M. Phys. Rev. B, 96, 014116 (2017)</mixed-citation></citation-alternatives></ref><ref id="cit27"><label>27</label><citation-alternatives><mixed-citation xml:lang="ru">Boldyrev K.N., Popova M.N., Malkin B.Z., Abishev N.M. Phys. Rev. B 99, 041105(R) (2019)</mixed-citation><mixed-citation xml:lang="en">Boldyrev K.N., Popova M.N., Malkin B.Z., Abishev N.M. Phys. Rev. B 99, 041105(R) (2019)</mixed-citation></citation-alternatives></ref><ref id="cit28"><label>28</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Chukalina E.P., Stanislavchuk T.N., Popova E.A., Malkin B.Z., Zakirov A.R., Antic-Fidancev E., Bezmaternykh L.N., Temerov V.L. Phys. Rev. B 75, 224435 (2007)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Chukalina E.P., Stanislavchuk T.N., Popova E.A., Malkin B.Z., Zakirov A.R., Antic-Fidancev E., Bezmaternykh L.N., Temerov V.L. Phys. Rev. B 75, 224435 (2007)</mixed-citation></citation-alternatives></ref><ref id="cit29"><label>29</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Stanislavchuk T.N., Malkin B.Z., Bezmaternykh L.N. Phys. Rev. B 80, 195101 (2009)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Stanislavchuk T.N., Malkin B.Z., Bezmaternykh L.N. Phys. Rev. B 80, 195101 (2009)</mixed-citation></citation-alternatives></ref><ref id="cit30"><label>30</label><citation-alternatives><mixed-citation xml:lang="ru">Stanislavchuk T.N., Popova M.N., Malkin B.Z., Bezmaternykh L.N. J. Phys.: Condens. Matter 24, 196002 (2012)</mixed-citation><mixed-citation xml:lang="en">Stanislavchuk T.N., Popova M.N., Malkin B.Z., Bezmaternykh L.N. J. Phys.: Condens. Matter 24, 196002 (2012)</mixed-citation></citation-alternatives></ref><ref id="cit31"><label>31</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Chukalina E.P., Malkin B.Z., Erofeev D.A., Bezmaternykh L.N., Gudim I.A. JETP 118, 111 (2014)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Chukalina E.P., Malkin B.Z., Erofeev D.A., Bezmaternykh L.N., Gudim I.A. JETP 118, 111 (2014)</mixed-citation></citation-alternatives></ref><ref id="cit32"><label>32</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Malkin B.Z., Boldyrev K.N., Stanislavchuk T.N., Erofeev D.A., Temerov V.L., Gudim I.A. Phys. Rev. B 94, 184418 (2016)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Malkin B.Z., Boldyrev K.N., Stanislavchuk T.N., Erofeev D.A., Temerov V.L., Gudim I.A. Phys. Rev. B 94, 184418 (2016)</mixed-citation></citation-alternatives></ref><ref id="cit33"><label>33</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Chukalina E.P., Boldyrev K.N., Stanislavchuk T.N., Malkin B.Z., Gudim I.A. Phys. Rev. B 95, 125131 (2017)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Chukalina E.P., Boldyrev K.N., Stanislavchuk T.N., Malkin B.Z., Gudim I.A. Phys. Rev. B 95, 125131 (2017)</mixed-citation></citation-alternatives></ref><ref id="cit34"><label>34</label><citation-alternatives><mixed-citation xml:lang="ru">Malkin B.Z. Crystal Field and Electron-Phonon Interaction in Rare-Earth Ionic Paramag- nets, in Spectroscopy of Solids Containing Rare-Earth Ions, ed. by A.A. Kaplyanskii and R.M. Macfarlane, Ch. 2, P. 13, Elsevier Science Publishers, Amsterdam (1987)</mixed-citation><mixed-citation xml:lang="en">Malkin B.Z. Crystal Field and Electron-Phonon Interaction in Rare-Earth Ionic Paramag- nets, in Spectroscopy of Solids Containing Rare-Earth Ions, ed. by A.A. Kaplyanskii and R.M. Macfarlane, Ch. 2, P. 13, Elsevier Science Publishers, Amsterdam (1987)</mixed-citation></citation-alternatives></ref><ref id="cit35"><label>35</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Stanislavchuk T.N., Malkin B.Z., Bezmaternykh L.N. Phys. Rev. Lett. 102, 187403 (2009)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Stanislavchuk T.N., Malkin B.Z., Bezmaternykh L.N. Phys. Rev. Lett. 102, 187403 (2009)</mixed-citation></citation-alternatives></ref><ref id="cit36"><label>36</label><citation-alternatives><mixed-citation xml:lang="ru">Boldyrev K.N., Stanislavchuk T.N., Sirenko A.A., Bezmaternykh L.N., Popova M.N. Phys. Rev. B 90, 121101(R) (2014)</mixed-citation><mixed-citation xml:lang="en">Boldyrev K.N., Stanislavchuk T.N., Sirenko A.A., Bezmaternykh L.N., Popova M.N. Phys. Rev. B 90, 121101(R) (2014)</mixed-citation></citation-alternatives></ref><ref id="cit37"><label>37</label><citation-alternatives><mixed-citation xml:lang="ru">Boldyrev K.N., Stanislavchuk T.N., Sirenko A.A., Kamenskyi D., Bezmaternykh L.N., Popova M.N. Phys. Rev. Lett. 118, 167203 (2017)</mixed-citation><mixed-citation xml:lang="en">Boldyrev K.N., Stanislavchuk T.N., Sirenko A.A., Kamenskyi D., Bezmaternykh L.N., Popova M.N. Phys. Rev. Lett. 118, 167203 (2017)</mixed-citation></citation-alternatives></ref><ref id="cit38"><label>38</label><citation-alternatives><mixed-citation xml:lang="ru">Chepurko G.G., Kazei Z.A., Kudrjavtsev D.A., Levitin R.Z., Mill B.V., Popova M.N., Snegirev V.V. Phys. Lett. A 157, 81 (1991)</mixed-citation><mixed-citation xml:lang="en">Chepurko G.G., Kazei Z.A., Kudrjavtsev D.A., Levitin R.Z., Mill B.V., Popova M.N., Snegirev V.V. Phys. Lett. A 157, 81 (1991)</mixed-citation></citation-alternatives></ref><ref id="cit39"><label>39</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Hadjiiskii Yu.A., Paukov I.V., Mill B.V. Phys. Lett. A 203, 412 (1995)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Hadjiiskii Yu.A., Paukov I.V., Mill B.V. Phys. Lett. A 203, 412 (1995)</mixed-citation></citation-alternatives></ref><ref id="cit40"><label>40</label><citation-alternatives><mixed-citation xml:lang="ru">Klimin S.A., Galkin A.S., Popova M.N. Phys. Lett. A 376, 1861 (2012)</mixed-citation><mixed-citation xml:lang="en">Klimin S.A., Galkin A.S., Popova M.N. Phys. Lett. A 376, 1861 (2012)</mixed-citation></citation-alternatives></ref><ref id="cit41"><label>41</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Klimin S.A., Chukalina E.P., Malkin B.Z., Levitin R.Z., Mill B.V., Antic-Fidancev E. Phys. Rev. B 68, 155103 (2003)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Klimin S.A., Chukalina E.P., Malkin B.Z., Levitin R.Z., Mill B.V., Antic-Fidancev E. Phys. Rev. B 68, 155103 (2003)</mixed-citation></citation-alternatives></ref><ref id="cit42"><label>42</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Klimin S.A., Chukalina E.P., Romanov E.A., Malkin B.Z., Antic-Fidancev E., Mill B.V., Dhalenne G. Phys. Rev. B 70, 024414 (2005)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Klimin S.A., Chukalina E.P., Romanov E.A., Malkin B.Z., Antic-Fidancev E., Mill B.V., Dhalenne G. Phys. Rev. B 70, 024414 (2005)</mixed-citation></citation-alternatives></ref><ref id="cit43"><label>43</label><citation-alternatives><mixed-citation xml:lang="ru">Klimin S.A., Kuzmenko A.B., Popova M.N., Malkin B.Z., Telegina I.V. Phys. Rev. B 82, 174425 (2010)</mixed-citation><mixed-citation xml:lang="en">Klimin S.A., Kuzmenko A.B., Popova M.N., Malkin B.Z., Telegina I.V. Phys. Rev. B 82, 174425 (2010)</mixed-citation></citation-alternatives></ref><ref id="cit44"><label>44</label><citation-alternatives><mixed-citation xml:lang="ru">Golubchik S.A., Isobe M., Ivlev A.N., Mavrin B.N., Popova M.N., Sushkov A.B., Ueda Yu., Vasil'ev A.N. J. Phys. Soc. Japan 66, 4042 (1997)</mixed-citation><mixed-citation xml:lang="en">Golubchik S.A., Isobe M., Ivlev A.N., Mavrin B.N., Popova M.N., Sushkov A.B., Ueda Yu., Vasil'ev A.N. J. Phys. Soc. Japan 66, 4042 (1997)</mixed-citation></citation-alternatives></ref><ref id="cit45"><label>45</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Sushkov A.B., Vasil'ev A.N., Isobe M., Ueda Yu. JETP Lett. 65, 743 (1997)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Sushkov A.B., Vasil'ev A.N., Isobe M., Ueda Yu. JETP Lett. 65, 743 (1997)</mixed-citation></citation-alternatives></ref><ref id="cit46"><label>46</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Sushkov A.B., Golubchik S.A., Mavrin B.N., Denisov V.N., Malkin B.Z., Iskhakova A.I., Isobe M., Ueda Yu. JETP 88, 1186 (1999)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Sushkov A.B., Golubchik S.A., Mavrin B.N., Denisov V.N., Malkin B.Z., Iskhakova A.I., Isobe M., Ueda Yu. JETP 88, 1186 (1999)</mixed-citation></citation-alternatives></ref><ref id="cit47"><label>47</label><citation-alternatives><mixed-citation xml:lang="ru">Popova M.N., Sushkov A.B., Klimin S.A., Chukalina E.P., Malkin B.Z., Isobe M., Ueda Yu. Phys. Rev. B 65, 144303 (2002)</mixed-citation><mixed-citation xml:lang="en">Popova M.N., Sushkov A.B., Klimin S.A., Chukalina E.P., Malkin B.Z., Isobe M., Ueda Yu. Phys. Rev. B 65, 144303 (2002)</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
