Energy spectrum and thermodynamics of anisotropic spin-1/2 two-leg ladder

Cheranovskii V. O., Chovpan A. A., Ezerskaya E. V., Ozkan I.

INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY, cilt.106, sa.10, ss.2254-2261, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 106 Sayı: 10
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1002/qua.20998
  • Dergi Adı: INTERNATIONAL JOURNAL OF QUANTUM CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2254-2261
  • Orta Doğu Teknik Üniversitesi Adresli: Evet

Özet

We studied the energy spectrum and some finite temperature properties of two-leg spin-1/2 ladder with XXZ interactions in legs and rungs. It is shown that for a strong ferromagnetic interchain interaction, there is a first-order transition between ferromagnetic and nonmagnetic phases. The anisotropic ladder in the magnetic field may have up to four low-temperature maxima in the temperature dependence of specific heat. (c) 2006 Wiley Periodicals, Inc.