Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article)
In this article I review recent achievements on experimental studies of magnetic excitations in the copper pyrimidine dinitrate [PM–Cu(NO₃ )₂ (H ₂O) ₂ ]n (PM = pyrimidine), an S = 1/2 antiferromagnetic chain material with alternating g-tensor and the Dzyaloshinskii–Moriya interaction, by means of...
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| Дата: | 2012 |
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| Автор: | |
| Формат: | Стаття |
| Мова: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2012
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| Назва видання: | Физика низких температур |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/117611 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) / S.A. Zvyagin // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1032–1040. — Бібліогр.: 37 назв. — англ. |
Репозитарії
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irk-123456789-1176112017-05-26T03:02:50Z Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) Zvyagin, S.A. К 80-летию Виктора Валентиновича Еременко In this article I review recent achievements on experimental studies of magnetic excitations in the copper pyrimidine dinitrate [PM–Cu(NO₃ )₂ (H ₂O) ₂ ]n (PM = pyrimidine), an S = 1/2 antiferromagnetic chain material with alternating g-tensor and the Dzyaloshinskii–Moriya interaction, by means of high-field electron spin resonance (ESR). Due to this alternation, in the 1D critical regime this material exhibits a field-induced gap. The excitation spectrum is formed by solitons and their bound states, breathers, and can be effectively described using the sine-Gordon model. With increasing temperature, the soliton-breather regime can be suppressed, resulting in a substantial evolution of ESR parameters. These changes can be described using a new theoretical concept recently proposed for S =1/2 AF chains with a staggered transverse field. High magnetic field induces a transition into spin-polarized state with the excitation spectrum formed by magnons. Nonmonotonous behavior of the field-induced gap is observed in the vicinity of saturation field. The experimental data are compared with results of existing theoretical approaches, revealing an excellent agreement with the predictions. 2012 Article Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) / S.A. Zvyagin // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1032–1040. — Бібліогр.: 37 назв. — англ. 0132-6414 PACS: 75.40.Gb, 76.30.–v, 75.10.Jm http://dspace.nbuv.gov.ua/handle/123456789/117611 en Физика низких температур Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
К 80-летию Виктора Валентиновича Еременко К 80-летию Виктора Валентиновича Еременко |
| spellingShingle |
К 80-летию Виктора Валентиновича Еременко К 80-летию Виктора Валентиновича Еременко Zvyagin, S.A. Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) Физика низких температур |
| description |
In this article I review recent achievements on experimental studies of magnetic excitations in the copper pyrimidine
dinitrate [PM–Cu(NO₃ )₂ (H ₂O) ₂ ]n (PM = pyrimidine), an S = 1/2 antiferromagnetic chain material
with alternating g-tensor and the Dzyaloshinskii–Moriya interaction, by means of high-field electron spin resonance
(ESR). Due to this alternation, in the 1D critical regime this material exhibits a field-induced gap. The excitation
spectrum is formed by solitons and their bound states, breathers, and can be effectively described using
the sine-Gordon model. With increasing temperature, the soliton-breather regime can be suppressed, resulting in
a substantial evolution of ESR parameters. These changes can be described using a new theoretical concept recently
proposed for S =1/2 AF chains with a staggered transverse field. High magnetic field induces a transition
into spin-polarized state with the excitation spectrum formed by magnons. Nonmonotonous behavior of the
field-induced gap is observed in the vicinity of saturation field. The experimental data are compared with results
of existing theoretical approaches, revealing an excellent agreement with the predictions. |
| format |
Article |
| author |
Zvyagin, S.A. |
| author_facet |
Zvyagin, S.A. |
| author_sort |
Zvyagin, S.A. |
| title |
Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) |
| title_short |
Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) |
| title_full |
Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) |
| title_fullStr |
Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) |
| title_full_unstemmed |
Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) |
| title_sort |
spin dynamics of s = 1/2 heisenberg chains with a staggered transverse field: electron spin resonance studies (review article) |
| publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| publishDate |
2012 |
| topic_facet |
К 80-летию Виктора Валентиновича Еременко |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/117611 |
| citation_txt |
Spin dynamics of S = 1/2 Heisenberg chains with a staggered transverse field: electron spin resonance studies (Review Article) / S.A. Zvyagin // Физика низких температур. — 2012. — Т. 38, № 9. — С. 1032–1040. — Бібліогр.: 37 назв. — англ. |
| series |
Физика низких температур |
| work_keys_str_mv |
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2023-10-18T20:30:12Z |
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2023-10-18T20:30:12Z |
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