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

doi:10.1063/1.4936671

Exchange bias phenomenon in (Nd_1-xY_x)_2/3Ca_1/3MnO₃ (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

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Abstract

Exchange bias phenomenon, evident of antiferromagnetic-ferromagnetic phase segregation state, has been observed in (Nd_1-xY_x)_2/3Ca_1/3MnO₃ (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 H_c and more rectangular form of the hysteresis loop. The values of the exchange bias field H_EB and coercivity are found to be strongly dependent on the cooling magnetic field H_cool. In sufficiently high magnetic fields, H_cool > 5 kOe, H_EB 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 (Nd_0.9Y_0.1)_2/3Ca_1/3MnO₃.

Original language	English
Pages (from-to)	1001-1005
Number of pages	5
Journal	Low Temperature Physics
Volume	41
Issue number	12
DOIs	https://doi.org/10.1063/1.4936671
Publication status	Published - 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

Funding

This work was supported by the project TUMOCS, funded by the European Commission in the framework of the HORIZON-2020 through the Marie Curie Grant No. 645660. A. V. Fedorchenko acknowledges the financial support by the Slovak Academic Information Agency (SAIA), which supported this study through the National Scholarship Programme (NSP) of the Slovak Republic (Grant No. 12509). The authors also acknowledge the support by the Slovak Research and Development Agency within the projects VEGA 1/0145/3 and APVV-0132-11.

Access to Document

10.1063/1.4936671

Exchange bias phenomenon
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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Cite this

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

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.",

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note = "Copyright {\textcopyright} 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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AU - Fedorchenko, A. V.

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AU - Desnenko, V. A.

AU - Čižmár, E.

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AU - Khalyavin, D. D.

AU - Salak, A. N.

AU - Shvartsman, V. V.

AU - Feher, A.

N1 - 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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N2 - 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.

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