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29 March 2024
 
  » arxiv » cond-mat/0107206

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Orbital effect of a magnetic field on the low temperature state in the organic metal $alpha$-(BEDT-TTF)$_2$KHg(SCN)$_4$
D. Andres ; M. V. Kartsovnik ; W. Biberacher ; H. Weiss ; E. Balthes ; H. Müller ; N. Kushch ;
Date 10 Jul 2001
Journal Phys. Rev. B, 64, 161104(R) (2001)
Subject Strongly Correlated Electrons | cond-mat.str-el
AbstractThe 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.
Source arXiv, cond-mat/0107206
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