scholarly journals Magnetization plateau in the spin ladder with a four-spin exchange

1999 ◽  
Vol 60 (1) ◽  
pp. 48-51 ◽  
Author(s):  
Tôru Sakai ◽  
Yasumasa Hasegawa
Keyword(s):  
Spin Exchange ◽  
Spin Ladder ◽  
Magnetization Plateau

scholarly journals Magnetization plateau in the S=1 spin ladder with competing interactions

2002 ◽  
Vol 63 (6-8) ◽  
pp. 1455-1458 ◽  
Author(s):  
Nobuhisa Okazaki ◽  
Kiyomi Okamoto ◽  
Tôru Sakai
Keyword(s):  
Spin Ladder ◽  
Competing Interactions ◽  
Magnetization Plateau

scholarly journals Magnetization Plateau in the Frustrated Spin Ladder

2000 ◽  
Vol 69 (1) ◽  
pp. 37-40 ◽  
Author(s):  
Nobuhisa Okazaki ◽  
Junji Miyoshi ◽  
Tôru Sakai
Keyword(s):  
Spin Ladder ◽  
Magnetization Plateau ◽  
Frustrated Spin

EXACT SOLUTIONS IN A SPATIALLY ANISOTROPIC QUANTUM SPIN LADDER MODEL HAVING TWO- AND FOUR-SPIN EXCHANGE INTERACTIONS

2009 ◽  
Vol 23 (08) ◽  
pp. 1981-2019 ◽  
Author(s):  
J. H. BARRY ◽  
J. D. COHEN ◽  
M. W. MEISEL
Keyword(s):  
Spin Exchange ◽  
Inelastic Neutron Scattering ◽  
Exchange Interactions ◽  
Inelastic Neutron ◽  
Elementary Excitation ◽  
Quantum Spin ◽  
Quantum Model ◽  
Spin Ladder ◽  
Zero Field ◽  
Ladder Model

We consider a two-leg S=1/2 quantum spin ladder model with two-spin (intra-rung) and four-spin (inter-rung) Heisenberg exchange interactions and a uniform magnetic field. Exact mappings are derived connecting the partition function and correlations in the three-parameter quantum model to those known in a two-parameter Ising chain. The quantum phase diagram of the ladder magnet is determined. Static correlations provide pertinent correlation lengths and underlie spatial fluctuation behaviors at arbitrary temperatures, including quantum fluctuations at absolute zero. Dynamic correlations in zero field are used to obtain an exact solution for the inelastic neutron scattering function Sxx(q, ω) at all temperatures, explicitly yielding the elementary excitation spectrum.

scholarly journals Magnetization plateau in a two-dimensional multiple-spin exchange model

1999 ◽  
Vol 59 (14) ◽  
pp. 9491-9499 ◽  
Author(s):  
Tsutomu Momoi ◽  
Harumi Sakamoto ◽  
Kenn Kubo
Keyword(s):  
Spin Exchange ◽  
Exchange Model ◽  
Two Dimensional ◽  
Magnetization Plateau

Magnetization plateau and cusp in S=1 spin ladder

2004 ◽  
Vol 346-347 ◽  
pp. 34-37 ◽  
Author(s):  
T. Sakai ◽  
K. Okamoto ◽  
K. Okunishi ◽  
K. Kindo ◽  
Y. Narumi ◽  
...  
Keyword(s):  
Spin Ladder ◽  
Magnetization Plateau

scholarly journals Phase diagram of a spin ladder with cyclic four-spin exchange

2003 ◽  
Vol 67 (10) ◽  
Author(s):  
A. Läuchli ◽  
G. Schmid ◽  
M. Troyer
Keyword(s):  
Phase Diagram ◽  
Spin Exchange ◽  
Spin Ladder
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