Chin. Phys. Lett.  2002, Vol. 19 Issue (1): 108-110    DOI:
Original Articles |
Critical Behaviour of the One-Dimensional Ferromagnetic t-J Model
YANG Fu1;WANG Yu-Peng2
1Technical Institute of Physics & Chemistry, Chinese Academy of Sciences, Beijing 100080 2Institute of Physics and Center for Condensed Matter Physics, Chinese Academy of Sciences, Beijing 100080
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YANG Fu, WANG Yu-Peng 2002 Chin. Phys. Lett. 19 108-110
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Abstract The one-dimensional super-symmetric ferromagnetic t-J model is
studied via the thermal Bethe ansatz. Analytic expressions of the free energy for T → 0 are obtained. A new critical behaviour beyond the universal class of Luttinger liquids is found in this system.
Keywords: 71.10.Fd      75.30.Et     
Published: 01 January 2002
PACS:  71.10.Fd (Lattice fermion models (Hubbard model, etc.))  
  75.30.Et (Exchange and superexchange interactions)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2002/V19/I1/0108
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