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Transfer-matrix renormalization group study of spin ladders with cyclic four-spin interactions 期刊论文
PHYSICAL REVIEW B, 2006, 卷号: 74, 期号: 22, 页码: -
Authors:  Lu, H. T.;  Sun, L. Q.;  Qin, Shaojin;  Wang, Y. J.;  Lu, HT , Peking Univ, Sch Phys, Beijing 100871, Peoples R China
Adobe PDF(184Kb)  |  Favorite  |  View/Download:178/20  |  Submit date:2012/08/02
Isotropic Heisenberg Chain  Magnetic Excitations  Arbitrary Spins  Wigner Crystal  Exchange  Model  Thermodynamics  La6ca8cu24o41  Temperature  Spectrum  
Exciton excitations in a one-dimensional band insulator with Hubbard interactions 期刊论文
CHINESE PHYSICS LETTERS, 2004, 卷号: 21, 期号: 3, 页码: 530-533
Authors:  Gu, B;  Lou, JZ;  Qin, SJ;  Xiang, T;  Gu, B , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
Adobe PDF(214Kb)  |  Favorite  |  View/Download:181/20  |  Submit date:2012/08/30
Mott Insulator  Polarization  Transition  
Weak finite-size dependence of velocity and strong phase dependence of central charge 期刊论文
COMMUNICATIONS IN THEORETICAL PHYSICS, 2002, 卷号: 37, 期号: 3, 页码: 367-372
Authors:  Lin, ZB;  Zhang, J;  Qin, SJ;  Lei, YA;  Lin, ZB , Peking Univ, Dept Phys, Beijing 100871, Peoples R China.
Adobe PDF(262Kb)  |  Favorite  |  View/Download:149/17  |  Submit date:2012/08/29
Spin Chain  Magnetization Plateau  Conformal-invariance  Heisenberg Chain  Band Insulator  Mott Insulator  State  Field  Transitions  
Weak mid-gap spin susceptibility anomaly of LiVGe2O6 with nonmagnetic impurities 期刊论文
PHYSICAL REVIEW B, 2001, 卷号: 63, 期号: 13, 页码: -
Authors:  Liu, YC;  Sun, LQ;  Inoue, H;  Qin, SJ;  Liu, YC , Acad Sinica, Inst Theoret Phys, POB 2735, Beijing 100080, Peoples R China.
Adobe PDF(58Kb)  |  Favorite  |  View/Download:190/18  |  Submit date:2012/08/29
Matrix Renormalization-group  Bond Ground-states  Haldane-gap  Heisenberg-antiferromagnet  Peierls Transition  Chain  System  Dynamics  Models