Orbital effect of a magnetic field on the low-temperature state in the organic metal α-(BEDT-TTF) 2 KHg(SCN) 4
Orbital effect of a magnetic field on the low-temperature state in the organic metal α-(BEDT-TTF) 2 KHg(SCN) 4
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磁场对有机金属α-(BEDT-TTF) 2 KHg(SCN) 4 低温状态的轨道效应
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
N. Kushch
中科院分区：
文献类型：
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作者：
D. Andres;M. Kartsovnik;W. Biberacher;H. Weiss;E. Balthes;H. Muller;N. Kushch
本文研究了压力对α-（BEDT-TTF）2 KHg（SCN）4 B-T相图的影响。测量的相位线可以很好地描述了最近的模型的电荷密度波系统具有不同的嵌套条件。在一定的压力和磁场范围内，磁场使相变温度显著升高。我们将这一结果与磁场轨道效应的显著增强相关联，这是由于压力导致嵌套条件恶化。此外，我们提出的数据可以解释为场致电荷密度波的第一个迹象。
The effect of pressure on the B--T phase diagram of $alpha$-(BEDT-TTF)$_2$KHg(SCN)$_4$ is studied. The measured phase lines can be well described by a recent model of a charge-density wave system with varying nesting conditions. A remarkable increase of the transition temperature with magnetic field is found in a certain pressure and field range. We associate this result with a dramatic enhancement of the orbital effect of magnetic field due to a deterioration of the nesting conditions by pressure. Furthermore, we present data which can be interpreted as a first sign of field-induced charge-density waves.