Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films

Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films

The amorphous, nanoclustered, and self-organizing bilayered Nd₀.₅Sr₀.₅MnO₃ films have been prepared by a rf-magnetron sputtering. The amorphous film turn out to be a typical paramagnet with a freely moving of the individual Mn spins, the magnetic properties of which are well described by the Curi...

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Published in:Физика низких температур
Date:2007
Main Authors: Prokhorov, V.G., Kaminsky, G.G., Komashko, V.A., Lee, Y.P., Park, S.Y., Hyun, Y.H., Kim, J.B., Park, J.S., Svetchnikov, V.L., Pashchenko, V.P., Khokhlov, V.A.
Format: Article
Language:English
Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2007
Subjects:
Низкотемпеpатуpный магнетизм
Online Access:https://nasplib.isofts.kiev.ua/handle/123456789/120920
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Journal Title:Digital Library of Periodicals of National Academy of Sciences of Ukraine
Cite this:Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films / V.G. Prokhorov, G.G. Kaminsky, V.A. Komashko, Y.P. Lee, S.Y. Park, Y.H. Hyun, J.B. Kim, J.S. Park, V.L. Svetchnikov, V.P. Pashchenko, V.A. Khokhlov // Физика низких температур. — 2007. — Т. 33, № 08. — С. 889–896. — Бібліогр.: 25 назв. — англ.

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Digital Library of Periodicals of National Academy of Sciences of Ukraine
id nasplib_isofts_kiev_ua-123456789-120920
record_format dspace
spelling Prokhorov, V.G.
Kaminsky, G.G.
Komashko, V.A.
Lee, Y.P.
Park, S.Y.
Hyun, Y.H.
Kim, J.B.
Park, J.S.
Svetchnikov, V.L.
Pashchenko, V.P.
Khokhlov, V.A.
2017-06-13T10:25:58Z
2017-06-13T10:25:58Z
2007
Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films / V.G. Prokhorov, G.G. Kaminsky, V.A. Komashko, Y.P. Lee, S.Y. Park, Y.H. Hyun, J.B. Kim, J.S. Park, V.L. Svetchnikov, V.P. Pashchenko, V.A. Khokhlov // Физика низких температур. — 2007. — Т. 33, № 08. — С. 889–896. — Бібліогр.: 25 назв. — англ.
0132-6414
PACS: 73.63.Bd, 75.47.Gk, 75.47.Lx, 75.75.+a
https://nasplib.isofts.kiev.ua/handle/123456789/120920
The amorphous, nanoclustered, and self-organizing bilayered Nd₀.₅Sr₀.₅MnO₃ films have been prepared by a rf-magnetron sputtering. The amorphous film turn out to be a typical paramagnet with a freely moving of the individual Mn spins, the magnetic properties of which are well described by the Curie–Weiss approximation. The nanoclustered film manifests the magnetic properties mimic to the superparamagnetic particles with a nonclassical magnetic dynamics. Taking into account the unique shape of the hysteresis loops, which have hysteretic lobes at high magnetic field but are nonhysteretic as the field crosses zero, we suggest that each particle (nanocluster) is the closure magnetic domain (or magnetic vortex) rather than the single one. At the same time, the blocked to unblocked transition was observed with increasing temperature similar to the usual superparamagnet. The self-organizing bilayered film demonstrates a negative exchange bias, which is typical for the ferromagnet/antiferromagnet hybrid system in spite of that both layers in our case have a ferromagnetic origin. The magnetic properties of the films are discussed in detail on the base of modern theoretical models.
This work was supported by the KOSEF through the Quantum Photonic Science Research Center.
en
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
Физика низких температур
Низкотемпеpатуpный магнетизм
Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films
Article
published earlier
institution Digital Library of Periodicals of National Academy of Sciences of Ukraine
collection DSpace DC
title Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films
spellingShingle Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films
Prokhorov, V.G.
Kaminsky, G.G.
Komashko, V.A.
Lee, Y.P.
Park, S.Y.
Hyun, Y.H.
Kim, J.B.
Park, J.S.
Svetchnikov, V.L.
Pashchenko, V.P.
Khokhlov, V.A.
Низкотемпеpатуpный магнетизм
title_short Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films
title_full Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films
title_fullStr Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films
title_full_unstemmed Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films
title_sort nonclassical magnetic dynamics and negative exchange bias in nd₀.₅sr₀.₅mno₃ films
author Prokhorov, V.G.
Kaminsky, G.G.
Komashko, V.A.
Lee, Y.P.
Park, S.Y.
Hyun, Y.H.
Kim, J.B.
Park, J.S.
Svetchnikov, V.L.
Pashchenko, V.P.
Khokhlov, V.A.
author_facet Prokhorov, V.G.
Kaminsky, G.G.
Komashko, V.A.
Lee, Y.P.
Park, S.Y.
Hyun, Y.H.
Kim, J.B.
Park, J.S.
Svetchnikov, V.L.
Pashchenko, V.P.
Khokhlov, V.A.
topic Низкотемпеpатуpный магнетизм
topic_facet Низкотемпеpатуpный магнетизм
publishDate 2007
language English
container_title Физика низких температур
publisher Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
format Article
description The amorphous, nanoclustered, and self-organizing bilayered Nd₀.₅Sr₀.₅MnO₃ films have been prepared by a rf-magnetron sputtering. The amorphous film turn out to be a typical paramagnet with a freely moving of the individual Mn spins, the magnetic properties of which are well described by the Curie–Weiss approximation. The nanoclustered film manifests the magnetic properties mimic to the superparamagnetic particles with a nonclassical magnetic dynamics. Taking into account the unique shape of the hysteresis loops, which have hysteretic lobes at high magnetic field but are nonhysteretic as the field crosses zero, we suggest that each particle (nanocluster) is the closure magnetic domain (or magnetic vortex) rather than the single one. At the same time, the blocked to unblocked transition was observed with increasing temperature similar to the usual superparamagnet. The self-organizing bilayered film demonstrates a negative exchange bias, which is typical for the ferromagnet/antiferromagnet hybrid system in spite of that both layers in our case have a ferromagnetic origin. The magnetic properties of the films are discussed in detail on the base of modern theoretical models.
issn 0132-6414
url https://nasplib.isofts.kiev.ua/handle/123456789/120920
fulltext
citation_txt Nonclassical magnetic dynamics and negative exchange bias in Nd₀.₅Sr₀.₅MnO₃ films / V.G. Prokhorov, G.G. Kaminsky, V.A. Komashko, Y.P. Lee, S.Y. Park, Y.H. Hyun, J.B. Kim, J.S. Park, V.L. Svetchnikov, V.P. Pashchenko, V.A. Khokhlov // Физика низких температур. — 2007. — Т. 33, № 08. — С. 889–896. — Бібліогр.: 25 назв. — англ.
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first_indexed 2025-11-24T11:38:23Z
last_indexed 2025-11-24T11:38:23Z
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