Exchange bias phenomenon in (Nd1-xYx)2/3Ca1/3MnO3 (x = 0, 0.1) perovskites

E. L. Fertman*, A. V. Fedorchenko, A. V. Kotlyar, V. A. Desnenko, E. Čižmár, A. Baran, D. D. Khalyavin, A. N. Salak, V. V. Shvartsman, A. Feher

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Exchange bias phenomenon, evident of antiferromagnetic-ferromagnetic phase segregation state, has been observed in (Nd1-xYx)2/3Ca1/3MnO3 (x = 0, 0.1) compounds at low temperatures. A contribution to the total magnetization of the compounds due to the ferromagnetic phase has been evaluated. It has been found that yttrium doping leads to the growth of the ferromagnetic phase fraction. The ferromagnetic phase in the doped compound has a lower coercivity Hc and more rectangular form of the hysteresis loop. The values of the exchange bias field HEB and coercivity are found to be strongly dependent on the cooling magnetic field Hcool. In sufficiently high magnetic fields, Hcool > 5 kOe, HEB in the doped compound is about twice as low as in the parent compound. This difference is attributed to a lower exchange interaction and higher saturation magnetization of the ferromagnetic phase in (Nd0.9Y0.1)2/3Ca1/3MnO3.

Original languageEnglish
Pages (from-to)1001-1005
Number of pages5
JournalLow Temperature Physics
Volume41
Issue number12
DOIs
Publication statusPublished - 31 Dec 2015

Bibliographical note

Copyright © 2015 American Institute of Physics. This article may be downloaded for personal use only. Any other use requires prior permission of the author and the American Institute of Physics. The following article appeared in Low Temp. Phys. 41, 1001 (2015); https://doi.org/10.1063/1.4936671 and may be found at https://doi.org/10.1063/1.4936671

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