Specific Heat of the Spin-1/2 Antiferromagnetic Heisenberg Chain

Chin. Phys. Lett.

2001, Vol. 18

Issue (9): 1261-1263 DOI:

Original Articles

Specific Heat of the Spin-1/2 Antiferromagnetic Heisenberg Chain

YUN Guo-Hong;LIANG Xi-Xia

Department of Physics, Inner Mongolia University, Hohhot 010021

Cite this article:

YUN Guo-Hong, LIANG Xi-Xia 2001 Chin. Phys. Lett. 18 1261-1263

Download: PDF(272KB)
Export: BibTeX | EndNote | Reference Manager | ProCite | RefWorks

Abstract A simple analytic theory of thermodynamics at finite temperature for the spin-1/2 antiferromagnetic Heisenberg chain is proposed based on the picture of the particle-hole pair excitations. The dispersion relation of the particle-hole pairs is derived in the formulation of thermodynamic Bethe ansatz providing that the particles and holes have the same energy and they are excited as normal modes. It is shown that the behaviour of the specific heat is in excellent agreement with the numerical and experimental results.

Keywords: 75.10.Jm 75.40.+t 75.40.Fa

Published: 01 September 2001

PACS:	75.10.Jm	(Quantized spin models, including quantum spin frustration)
	75.40.+t
	75.40.Fa

TRENDMD:

URL:

https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2001/V18/I9/01261

Service
	E-mail this article
	E-mail Alert
	RSS
Articles by authors
	YUN Guo-Hong
	LIANG Xi-Xia

Related articles from Frontiers Journals

[1]	ZHU Ren-Gui . Frustrated Ferromagnetic Spin Chain near the Transition Point**[J]. Chin. Phys. Lett., 2011, 28(9): 1261-1263
[2]	Sudha, , B. G. Divyamani, A. R. Usha Devi, . Loss of Exchange Symmetry in Multiqubit States under Ising Chain Evolution**[J]. Chin. Phys. Lett., 2011, 28(2): 1261-1263
[3]	Erhan Albayrak . Thermal Entanglement in a Two-Qutrit Spin-1 Anisotropic Heisenberg Model[J]. Chin. Phys. Lett., 2011, 28(2): 1261-1263
[4]	CAI Jiang-Tao, ABLIZ Ahmad, BAI Yan-Kui, JIN Guang-Sheng . Effects of Dzyaloshinskii–Moriya Interaction on Optimal Dense Coding Using a Two-Qubit Heisenberg XXZ Chain with and without External Magnetic Field**[J]. Chin. Phys. Lett., 2011, 28(2): 1261-1263
[5]	ZHANG Hong-Biao, TIAN Li-Jun,. Fidelity Susceptibility in the SU(2) and SU(1,1) Algebraic Structure Models[J]. Chin. Phys. Lett., 2010, 27(5): 1261-1263
[6]	GU Shi-Jian . Density-Functional Fidelity Approach to Quantum Phase Transitions[J]. Chin. Phys. Lett., 2009, 26(2): 1261-1263
[7]	ZENG Tian-Hai, SHAO Bin, ZOU Jian. Effects of Intrinsic Decoherence on Information Transport in a Spin Chain[J]. Chin. Phys. Lett., 2009, 26(2): 1261-1263
[8]	LI Da-Chuang, CAO Zhuo-Liang. Thermal Entanglement in the Anisotropic Heisenberg XYZ Model with Different Dzyaloshinskii-Moriya Couplings[J]. Chin. Phys. Lett., 2009, 26(2): 1261-1263
[9]	LI An-Kang, LU Jun-Zhe, MA Lei. Bond-Alternating Antiferromagnetic S=1/2 Heisenberg Ladder with Ferromagnetic Diagonal Coupling[J]. Chin. Phys. Lett., 2009, 26(12): 1261-1263
[10]	XI Xiao-Qiang, LIU Wu-Ming. Generation of Long-Distance Entanglement in Spin System[J]. Chin. Phys. Lett., 2008, 25(7): 1261-1263
[11]	CHAN Wen-Ling, YANG Dong, GU Shi-Jian. Maximizing Thermal Entanglement of XY Model Using Site-Dependent Magnetic Fields in Specific Directions[J]. Chin. Phys. Lett., 2008, 25(3): 1261-1263
[12]	DENG Hong-Liang, FANG Xi-Ming. One-Step Implementation of Single Spin Measurement in Spin Star Network[J]. Chin. Phys. Lett., 2008, 25(2): 1261-1263
[13]	ZHAI Xiao-Yue, TONG Pei-Qing. Thermal Entanglement of Anisotropic XY Chains in a Transverse Field[J]. Chin. Phys. Lett., 2007, 24(9): 1261-1263
[14]	ZHANG Ting, WU Wei, CHEN Ping-Xing, LI Cheng-Zu. General Properties of Thermal Entanglement in an Arbitrary-Length Heisenberg Spin Chain[J]. Chin. Phys. Lett., 2007, 24(8): 1261-1263
[15]	GUO Jin-Liang, HUANG Xiao-Li, SONG He-Shan. Effects of Inhomogeneous Spin Coupling and Anisotropy on Thermal Entanglement[J]. Chin. Phys. Lett., 2007, 24(6): 1261-1263

Viewed

Full text

Abstract