Heat capacity and spin susceptibility of two-dimensional t–J model
Thermodynamic properties of the t–J model on square and triangular lattices near half-filling are investigated
 theoretically within an analytical approach based on the Kondo and Yamaji’s Green function decoupling
 scheme. The temperature dependences of the heat capacity and spin sus...
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| Veröffentlicht in: | Физика низких температур |
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| Datum: | 2007 |
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| Format: | Artikel |
| Sprache: | Englisch |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2007
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Heat capacity and spin susceptibility of two-dimensional
 t–J model / T.N. Antsygina, M.I. Poltavskaya, I.I. Poltavsky, K.A. Chishko // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 814-819. — Бібліогр.: 14 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862722182410403840 |
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| author | Antsygina, T.N. Poltavskaya, M.I. Poltavsky, I.I. Chishko, K.A. |
| author_facet | Antsygina, T.N. Poltavskaya, M.I. Poltavsky, I.I. Chishko, K.A. |
| citation_txt | Heat capacity and spin susceptibility of two-dimensional
 t–J model / T.N. Antsygina, M.I. Poltavskaya, I.I. Poltavsky, K.A. Chishko // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 814-819. — Бібліогр.: 14 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | Thermodynamic properties of the t–J model on square and triangular lattices near half-filling are investigated
theoretically within an analytical approach based on the Kondo and Yamaji’s Green function decoupling
scheme. The temperature dependences of the heat capacity and spin susceptibility are calculated in the wide
temperature range for the case when the exchange constant J is greater than the hopping amplitude t. It was
found, that with the increase of doping from the half-filling, the maximum of the spin susceptibility increases
and its position shifts to lower temperatures for both types of lattices. Such behavior is in agreement with the
qualitative predictions [E. Dagotto, Rev. Mod. Phys. 66, 763 (1994)]. Heat capacity demonstrates a double
peak shape. The high temperature peak associated with the «spin wave-like» excitations shifts to lower temperatures
with doping. The low temperature peak appears due to the holes and its height and position depend
on both the doping and the ratio t / J .
|
| first_indexed | 2025-12-07T18:34:28Z |
| format | Article |
| fulltext | |
| id | nasplib_isofts_kiev_ua-123456789-121799 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-07T18:34:28Z |
| publishDate | 2007 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Antsygina, T.N. Poltavskaya, M.I. Poltavsky, I.I. Chishko, K.A. 2017-06-16T08:17:39Z 2017-06-16T08:17:39Z 2007 Heat capacity and spin susceptibility of two-dimensional
 t–J model / T.N. Antsygina, M.I. Poltavskaya, I.I. Poltavsky, K.A. Chishko // Физика низких температур. — 2007. — Т. 33, № 6-7. — С. 814-819. — Бібліогр.: 14 назв. — англ. 0132-6414 PACS: 71.10.Fd; 75.40.Cx https://nasplib.isofts.kiev.ua/handle/123456789/121799 Thermodynamic properties of the t–J model on square and triangular lattices near half-filling are investigated
 theoretically within an analytical approach based on the Kondo and Yamaji’s Green function decoupling
 scheme. The temperature dependences of the heat capacity and spin susceptibility are calculated in the wide
 temperature range for the case when the exchange constant J is greater than the hopping amplitude t. It was
 found, that with the increase of doping from the half-filling, the maximum of the spin susceptibility increases
 and its position shifts to lower temperatures for both types of lattices. Such behavior is in agreement with the
 qualitative predictions [E. Dagotto, Rev. Mod. Phys. 66, 763 (1994)]. Heat capacity demonstrates a double
 peak shape. The high temperature peak associated with the «spin wave-like» excitations shifts to lower temperatures
 with doping. The low temperature peak appears due to the holes and its height and position depend
 on both the doping and the ratio t / J . en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Related Topics Heat capacity and spin susceptibility of two-dimensional t–J model Article published earlier |
| spellingShingle | Heat capacity and spin susceptibility of two-dimensional t–J model Antsygina, T.N. Poltavskaya, M.I. Poltavsky, I.I. Chishko, K.A. Related Topics |
| title | Heat capacity and spin susceptibility of two-dimensional t–J model |
| title_full | Heat capacity and spin susceptibility of two-dimensional t–J model |
| title_fullStr | Heat capacity and spin susceptibility of two-dimensional t–J model |
| title_full_unstemmed | Heat capacity and spin susceptibility of two-dimensional t–J model |
| title_short | Heat capacity and spin susceptibility of two-dimensional t–J model |
| title_sort | heat capacity and spin susceptibility of two-dimensional t–j model |
| topic | Related Topics |
| topic_facet | Related Topics |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/121799 |
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