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首页> 外文期刊>Physica, B. Condensed Matter >Interference of spin-, charge- and orbital degrees of freedom in low-carrier rare earth compounds, investigated by NMR
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Interference of spin-, charge- and orbital degrees of freedom in low-carrier rare earth compounds, investigated by NMR

机译：核磁共振研究低载稀土化合物中自旋，电荷和轨道自由度的干扰

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摘要

In rare earth compounds, the concentration of charge carriers is known to strongly influence the nature. and the charge carriers caused by valence fluctuations result in a complete suppression of the magnetic state, as typically observed for YbInCu4. The notable exception has been reported for the cubic (NaCl structure) TmX and YbX families with low carrier, that exhibits antiferro-magnetic (AFM) order at low temperatures. Among these families, TmTe and YbSb with degenerate low-lying multiplets have an additional transition of antiferro-quadrupolar (AFQ) orderings. To elucidate the interplay between the electronic transport and magnetic and/or orbital phenomena close to a semiconductor-to-metal transition, we have carried NMR measurements of Cu-63 in YbInCu4. Te-125 in TmTe, and Sb-121,Sb-123 in YbSb down to 1.2K and the implication of NMR findings is discussed in terms of the CEF splitting, (c) 2006 Elsevier B.V. All rights reserved.
机译：在稀土化合物中，已知载流子的浓度会强烈影响其性质。通常，对于YbInCu4观察到，由价态波动引起的电荷载流子会完全抑制磁态。据报道，具有低载流子的立方（NaCl结构）TmX和YbX族明显例外，在低温下表现出反铁磁（AFM）顺序。在这些家族中，具有简并的低洼多重态的TmTe和YbSb具有反铁四极（AFQ）有序的额外过渡。为了阐明电子传输与接近半导体到金属转变的磁和/或轨道现象之间的相互作用，我们进行了YbInCu4中Cu-63的NMR测量。 TmTe中的Te-125和YbSb中的Sb-121，Sb-123（低至1.2K）以及NMR发现的意义均通过CEF分裂进行了讨论（c）2006 Elsevier B.V.保留所有权利。

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