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arXiv 0807.3119cond-mat.str-el
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$^{77}$ Se NMR研究(TMTSF)$_2$ ClO $_4$的场致自旋密度波跃迁

$^{77}$Se NMR investigation of the field-induced spin-density-wave transitions in (TMTSF)$_2$ClO$_4$

L. L. Lumata, J. S. Brooks, P. L. Kuhns, A. P. Reyes, S. E. Brown, H. B. Cui, R. C. Haddon

摘要:

互补的$^{77}$ Se核磁共振(NMR)和电输运已被用来关联的自旋密度动力学与场诱导自旋密度波(FISDW)在\tmt基态的子相位。我们发现自旋-晶格弛豫速率1/T $_1$的峰值出现在金属-FISDW相界和/或一级亚相变处。在25 T以上的量子极限,NMR数据给出了一个洞察FISDW电子结构。

英文摘要:

Complementary $^{77}$Se nuclear magnetic resonance (NMR) and electrical transport have been used to correlate the spin density dynamics with the subphases of the field-induced spin density wave (FISDW) ground state in \tmt. We find that the peaks in the spin-lattice relaxation rate 1/T$_1$ appear within the metal-FISDW phase boundary and/or at first-order subphase transitions. In the quantum limit above 25 T, the NMR data gives an insight into the FISDW electronic structure.

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