mriselMagnetic Resonance in SolidsMagnetic Resonance in Solids2072-5981Kazan Federal Universitymrisel-231Research ArticleСтатьиSpin dynamics in La2-xSrxCuO4 doped with Fe: An ESR study (in English)Krug von NiddaH. -A.

86135 Augsburg

KruschelG.

64289 Darmstadt

LoidlA.

86135 Augsburg

ElschnerB.

64289 Darmstadt

University of AugsburgGermanyTechnical University of DarmstadtGermany20042201202461Special Issue155163Copyright © Krug von Nidda H.-., Kruschel G., Loidl A., Elschner B., 20242024Krug von Nidda H.-., Kruschel G., Loidl A., Elschner B.Krug von Nidda H.-., Kruschel G., Loidl A., Elschner B.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.mrsej.ru/jour/article/view/231

The electron-spin resonance (ESR) of La2-xSrxCu1-yFeyO4 is investigated on polycrystalline samples for 0 <= x <= 0.3 and 0 <= y <= 0.1. The ESR spectrum consists of the superposition of two Lorentzian lines, which can be unambiguously attributed to Fe3+ and intrinsic Cu-spin polaron signals. The simultaneous observation of both signals allows to describe the temperature dependence of the relaxation of the Fe3+ ions in terms of Cu-spin fluctuations.

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The authors declare that there are no conflicts of interest present.