Open AccessField-induced specific heat for the antiferromagnetic chain with single-ion anisotropy
Author(s) -
Yu Shi,
Xing Huang,
Huaiwu Zhang,
Yulan Jing,
Yingli Liu
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.280
Subject(s) - condensed matter physics , anisotropy , antiferromagnetism , physics , field (mathematics) , phase diagram , transverse plane , transverse field , ion , phase transition , luttinger liquid , magnetic field , materials science , phase (matter) , ising model , quantum mechanics , electron , mathematics , pure mathematics , structural engineering , engineering
The thermodynamic properties in one-dimensional S=1 Heisenberg antiferromagnet with single-ion anisotropy in the presence of a transverse magnetic field is obtained on the basis of the Schwinger boson mean-field theory. The anomalies of the specific heat at low temperatures, which might be an indicative of a field-induced transition from a Luttinger liquid phase to an ordered phase, are explicitly uncovered under the transverse field. A schematic phase diagram is proposed. The little effect of the single-ion anisotropy on specific heat is also observed, the result is very different from that obtained under a longitudinal field. All results above are expected to be helpful for the experimental investigation.