Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach
In spite of the fact that dynamical properties of magnets have been extensively studied over the past years, the longitudinal magnetization dynamics is still much less understood than transverse one even in the equilibrium state of a system. In this paper, we give a review of existing, based on quan...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2018 |
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| Sprache: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2018
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| Zitieren: | Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach / V.N. Krivoruchko // Физика низких температур. — 2018. — Т. 44, № 11. — С. 1565-1574. — Бібліогр.: 56 назв. — англ. |
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Krivoruchko, V.N. 2021-02-04T07:40:31Z 2021-02-04T07:40:31Z 2018 Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach / V.N. Krivoruchko // Физика низких температур. — 2018. — Т. 44, № 11. — С. 1565-1574. — Бібліогр.: 56 назв. — англ. 0132-6414 PACS: 75.78.–n, 76.50.+g, 75.78.Jp https://nasplib.isofts.kiev.ua/handle/123456789/176229 In spite of the fact that dynamical properties of magnets have been extensively studied over the past years, the longitudinal magnetization dynamics is still much less understood than transverse one even in the equilibrium state of a system. In this paper, we give a review of existing, based on quantum-mechanical approach, theoretical descriptions of the longitudinal magnetization dynamics for ferro-, ferri- and antiferromagnetic dielectrics. The aim is to reveal specific features of this type of magnetization vibrations under description a system within the framework of one of the basic model theory of magnetism— the Heisenberg model. Related experimental investigations as well as open questions are also briefly discussed. We hope that understanding of the longitudinal magnetization dynamics distinctive features in the equilibrium state have to be a reference point for a theory uncovering the physical mechanisms that govern ultrafast spin dynamics after femtosecond laser pulse demagnetization when a system is far beyond an equilibrium state. The author dedicates this article to the memory of Anatolii Illarionovich Zvyagin; in 1984–1990 I had the opportunity to participate in the work of scientific group led by A.I. Zvyagin on searching and investigating new types of magnetic structures and resonances in low-dimensional multiple sublattice antiferromagnets. The author is grateful for valuable discussions with V.G. Bar’yakhtar and B.A. Ivanov; I also extend appreciation to M. Belogolovskii for reading the manuscript and critical remarks. This work is partly supported by the Ukrainian State Fund for Fundamental Research (project No F71/59-2017 “Multifunctional Photonic Structures”) and the European Union’s Horizon 2020 research and innovation program under Marie Skłodowska-Curie (project “MagIC”, Grant Agreement No. 644348). en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Специальный выпуск К 80-летию со дня рождения А.И. Звягина Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach Article published earlier |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| title |
Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach |
| spellingShingle |
Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach Krivoruchko, V.N. Специальный выпуск К 80-летию со дня рождения А.И. Звягина |
| title_short |
Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach |
| title_full |
Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach |
| title_fullStr |
Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach |
| title_full_unstemmed |
Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach |
| title_sort |
longitudinal magnetization dynamics in heisenberg magnets: spin green functions approach |
| author |
Krivoruchko, V.N. |
| author_facet |
Krivoruchko, V.N. |
| topic |
Специальный выпуск К 80-летию со дня рождения А.И. Звягина |
| topic_facet |
Специальный выпуск К 80-летию со дня рождения А.И. Звягина |
| publishDate |
2018 |
| language |
English |
| container_title |
Физика низких температур |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| format |
Article |
| description |
In spite of the fact that dynamical properties of magnets have been extensively studied over the past years, the longitudinal magnetization dynamics is still much less understood than transverse one even in the equilibrium state of a system. In this paper, we give a review of existing, based on quantum-mechanical approach, theoretical descriptions of the longitudinal magnetization dynamics for ferro-, ferri- and antiferromagnetic dielectrics. The aim is to reveal specific features of this type of magnetization vibrations under description a system within the framework of one of the basic model theory of magnetism— the Heisenberg model. Related experimental investigations as well as open questions are also briefly discussed. We hope that understanding of the longitudinal magnetization dynamics distinctive features in the equilibrium state have to be a reference point for a theory uncovering the physical mechanisms that govern ultrafast spin dynamics after femtosecond laser pulse demagnetization when a system is far beyond an equilibrium state.
|
| issn |
0132-6414 |
| url |
https://nasplib.isofts.kiev.ua/handle/123456789/176229 |
| citation_txt |
Longitudinal magnetization dynamics in Heisenberg magnets: Spin Green functions approach / V.N. Krivoruchko // Физика низких температур. — 2018. — Т. 44, № 11. — С. 1565-1574. — Бібліогр.: 56 назв. — англ. |
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2025-12-07T19:52:15Z |
| last_indexed |
2025-12-07T19:52:15Z |
| _version_ |
1850880437429207040 |