Orbital effect of a magnetic field on the low-temperature state in the organic metal α-(BEDT-TTF)2KHg(SCN)4 -: art. no. 161104

被引:42
作者
Andres, D [1 ]
Kartsovnik, MV
Biberacher, W
Weiss, H
Balthes, E
Müller, H
Kushch, N
机构
[1] Bayer Akad Wissensch, Walther Meissner Inst, D-85748 Garching, Germany
[2] Max Planck Inst Festkorperforsch, High Field Magnet Lab, F-38042 Grenoble 9, France
[3] CNRS, F-38042 Grenoble 9, France
[4] European Synchrotron Radiat Facil, F-38043 Grenoble, France
[5] Russian Acad Sci, Inst Problems Chem Phys, Chernogolovka 142432, Russia
关键词
D O I
10.1103/PhysRevB.64.161104
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
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.
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页数:4
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