Quantum Physics Division
Faculty of PhysicsAdam Mickiewicz University

Specific heat of the spin-½ Heisenberg antiferromagnet on squagome lattice

P. Tomczak1 , J. Richter2

1 Department of Physics, Adam Mickiewicz University, Umultowska 85, 61-614 Poznań, Poland
2 Institut für Theoretische Physik, Otto-von-Guericke Universität Magdeburg, POB 4120, 39016 Magdeburg, Germany

J. Phys. A: Math. Gen., 36, 5399-5403 (2003)
DOI: 10.1088/0305-4470/36/20/304


The free energy of the spin-½ Heisenberg antiferromagnet (HAF) on a squagome lattice is calculated within the Suzuki–Takano quantum decimation technique. The resulting specific heat exhibits an additional peak in the low-temperature region.


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