NMR Relaxation Rate for One-Dimensional Multicomponent Spin-Orbital Systems : Condensed Matter: Electronic Properties, etc.
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概要
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The NMR relaxation rate 1/T_1 is studied for one-dimensional multicomponent spin-orbital systems. By combining the bosonization techniques and the exact solution of the SU(n) model, we evaluate the power-law exponent and the enhancement factor for 1/T_1 at low temperatures. We discuss how the band splitting affects the relaxation rate, and find that 1/T_1 may be enhanced around the critical value of the band splitting. The crossover behavior in 1/T_1 around the critical point is discussed in terms of the low-frequency dynamical spin susceptibility. The effect of the hole-doping is also addressed.
- 社団法人日本物理学会の論文
- 2000-09-15
著者
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Fujii Tatsuya
Department Of Pediatrics Shiga Medical Center For Children
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KAWAKAMI Norio
Department of Applied Physics, Osaka University
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Kawaguchi Akira
Department Of Applied Physics Osaka University
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Kawakami Norio
Department Of Applied Physics Osaka University
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Kawaguchi Akira
Department Of Appkied Physics Osaka University
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Fujii Tatsuya
Department Of Applied Physics Osaka University
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