The energy spectrum and thermodynamics of the finite spin-1/2 XX chain with Ising-type Impurities
Keywords:
spin Hamiltonian, XY-chain, XX-chain, spin, energy spectrum, thermodynamic characteristics
Abstract
The energy spectrum and thermodynamics of two one-dimensional spin systems: the finite XX-chain with periodic boundaries and one zz (Ising) bond, and open ends XX-chain with two zz-impurities at the both ends have been investigated. The conditions for the appearance of the energy states, localized in the vicinity of impurity spins, have been derived. The peculiarities of field and temperature dependences of the basic thermodynamic characteristics of these models have been studied.
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References
E. Lieb, T. Schultz, and D. Mattis, Ann. Phys. 16, 407 (1961).
Zvyagin A.A., Quantum Theory of One-Dimensional Spin Systems, Cambridge Scientific Publishers, Cambridge, 2010. – 330 p.
A. Klumper, D.C. Johnston, Phys. Rev. Lett., 84, 4701 (2000).
Y. Liu, J.E. Drumheller, R.D. Willett, Phys. Rev., B52, 15327 (1995).
Zvyagin A.A., Quantum Theory of One-Dimensional Spin Systems, Cambridge Scientific Publishers, Cambridge, 2010. – 330 p.
A. Klumper, D.C. Johnston, Phys. Rev. Lett., 84, 4701 (2000).
Y. Liu, J.E. Drumheller, R.D. Willett, Phys. Rev., B52, 15327 (1995).
Published
2016-12-28
How to Cite
Ezerskaya, E. V., & Sokorenko, K. V. (2016). The energy spectrum and thermodynamics of the finite spin-1/2 XX chain with Ising-type Impurities. Journal of V. N. Karazin Kharkiv National University. Series Physics, (23), 75-79. Retrieved from https://periodicals.karazin.ua/physics/article/view/7780
Section
Articles
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