Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities
We present an exact theory that describes how magnetic impurities change the behavior of the thermal
 conductivity for the integrable Heisenberg antiferromagnetic quantum spin-1/2 chain. Single magnetic impurities
 and a large concentration of impurities with similar values of the co...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2008 |
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| Format: | Artikel |
| Sprache: | Englisch |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2008
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Thermal conductivity of a quantum spin-1/2
 antiferromagnetic chain with magnetic impurities / A.A. Zvyagin // Физика низких температур. — 2008. — Т. 34, № 3. — С. 273–277. — Бібліогр.: 15 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862720853932769280 |
|---|---|
| author | Zvyagin, A.A. |
| author_facet | Zvyagin, A.A. |
| citation_txt | Thermal conductivity of a quantum spin-1/2
 antiferromagnetic chain with magnetic impurities / A.A. Zvyagin // Физика низких температур. — 2008. — Т. 34, № 3. — С. 273–277. — Бібліогр.: 15 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | We present an exact theory that describes how magnetic impurities change the behavior of the thermal
conductivity for the integrable Heisenberg antiferromagnetic quantum spin-1/2 chain. Single magnetic impurities
and a large concentration of impurities with similar values of the couplings to the host chain (a weak
disorder) do not change the linear-in-temperature low-T behavior of the thermal conductivity: Only the slope
of that behavior becomes smaller, comparing to the homogeneous case. The strong disorder in the distribution
of the impurity-host couplings produces more rapid temperature growth of the thermal conductivity,
compared to the linear in T dependence of the homogeneous chain and the chain with a weak disorder. Recent
experiments on the thermal conductivity in inhomogeneous quasi-one-dimensional quantum spin systems
manifest qualitative agreement with our results.
|
| first_indexed | 2025-12-07T18:28:10Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-116849 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T18:28:10Z |
| publishDate | 2008 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Zvyagin, A.A. 2017-05-16T19:12:30Z 2017-05-16T19:12:30Z 2008 Thermal conductivity of a quantum spin-1/2
 antiferromagnetic chain with magnetic impurities / A.A. Zvyagin // Физика низких температур. — 2008. — Т. 34, № 3. — С. 273–277. — Бібліогр.: 15 назв. — англ. 0132-6414 PACS: 75.10.Jm;71.10–w;72.10.Di;72.15.Eb https://nasplib.isofts.kiev.ua/handle/123456789/116849 We present an exact theory that describes how magnetic impurities change the behavior of the thermal
 conductivity for the integrable Heisenberg antiferromagnetic quantum spin-1/2 chain. Single magnetic impurities
 and a large concentration of impurities with similar values of the couplings to the host chain (a weak
 disorder) do not change the linear-in-temperature low-T behavior of the thermal conductivity: Only the slope
 of that behavior becomes smaller, comparing to the homogeneous case. The strong disorder in the distribution
 of the impurity-host couplings produces more rapid temperature growth of the thermal conductivity,
 compared to the linear in T dependence of the homogeneous chain and the chain with a weak disorder. Recent
 experiments on the thermal conductivity in inhomogeneous quasi-one-dimensional quantum spin systems
 manifest qualitative agreement with our results. The financial support from Deutsche Forschungsgemeinschaft (Grant No 436 UKR 17/21/06) is acknowledged. Stimulating discussions with B. Buchner, C. Hess,
 S.-L. Drechsler, V. Kataev, and P. Ribeiro are greatly appreciated en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Низкоразмерные и неупорядоченные системы Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities Article published earlier |
| spellingShingle | Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities Zvyagin, A.A. Низкоразмерные и неупорядоченные системы |
| title | Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities |
| title_full | Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities |
| title_fullStr | Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities |
| title_full_unstemmed | Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities |
| title_short | Thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities |
| title_sort | thermal conductivity of a quantum spin-1/2 antiferromagnetic chain with magnetic impurities |
| topic | Низкоразмерные и неупорядоченные системы |
| topic_facet | Низкоразмерные и неупорядоченные системы |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/116849 |
| work_keys_str_mv | AT zvyaginaa thermalconductivityofaquantumspin12antiferromagneticchainwithmagneticimpurities |