Quantum phase transitions and thermodynamics of quantum antiferromagnets with competing interactions

• Date: 2007
• Main Authors: Trippe, Ch., Klumper, A.
• Format: Article
• Language: English
• Published: Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України 2007
• Online Access: https://nasplib.isofts.kiev.ua/handle/123456789/7712
• Journal Title: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Cite this: Quantum phase transitions and thermodynamics of quantum antiferromagnets with competing interactions / Ch. Trippe, A. Klumper // Физика низких температур. — 2007. — Т. 33, № 11. — С. 1213-1221. — Бібліогр.: 14 назв. — англ.

We study the isotropic Heisenberg chain with nearest and next-nearest neighbor interactions. The ground state phase diagram is constructed in dependence on the additional interactions and an external magnetic field. The thermodynamics is studied by use of finite sets of nonlinear integral equations...