Erratum: Magnetization plateau in the frustrated quantum spin systemCs2CuBr4[Phys. Rev. B67, 104431 (2003)]

2007 ◽  
Vol 76 (21) ◽  
Author(s):  
T. Ono ◽  
H. Tanaka ◽  
H. Aruga Katori ◽  
F. Ishikawa ◽  
H. Mitamura ◽  
...  
2012 ◽  
Vol 85 (5) ◽  
Author(s):  
Kouichi Okunishi ◽  
Masahiro Sato ◽  
Tôru Sakai ◽  
Kiyomi Okamoto ◽  
Chigak Itoi

2003 ◽  
Vol 67 (10) ◽  
Author(s):  
T. Ono ◽  
H. Tanaka ◽  
H. Aruga Katori ◽  
F. Ishikawa ◽  
H. Mitamura ◽  
...  

2002 ◽  
Vol 16 (20n22) ◽  
pp. 3325-3325
Author(s):  
N. HAGA ◽  
S. SUGA

We investigate the dynamical structure factors of the S = 1/2 spin ladder systems with a diagonal interaction in the magnetization-plateau state. The results show characteristic behaviors depending on the chain interaction α, the ladder interaction 1 + δ and the diagonal interaction 1 - δ. The large weights are located at q = π, when δ is small. With increasing δ, the wavenumber of the large weights shifts towards q = π/2 taking the incommensurate value. The almost dispersionless behavior comes out at several combinations of α and δ, indicating that the elementary excitation is localized spatially. We discuss our results in comparison with the exact excitation spectrums of the S = 1/2 XXZ model which is an effective Hamiltonian of the present system in α ~ 0 and δ ~ 1. Dynamical structure factors of some S = 1/2 one-dimensional quantum spin systems in the magnetic fields were measured by inelastic neutron-scattering experiments1,2 and it has been shown the theoretical results from the numerical diagonalization of finite systems can explain them.3–5


2011 ◽  
Vol 43 (3) ◽  
pp. 769-772 ◽  
Author(s):  
Kiyomi Okamoto ◽  
Masahiro Sato ◽  
Kouichi Okunishi ◽  
Tôru Sakai ◽  
Chigak Itoi

1994 ◽  
Vol 4 (8) ◽  
pp. 1151-1159 ◽  
Author(s):  
Makoto Idzumi ◽  
Tetsuji Tokihiro ◽  
Masao Arai

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