Magnetic phase diagram of the organic conductor α-(BEDT-TTF)2KHg(SCN)4

Takahiko Sasaki; Naoki Toyota

doi:10.1016/0038-1098(92)90747-W

Magnetic phase diagram of the organic conductor α-(BEDT-TTF)₂KHg(SCN)₄

Takahiko Sasaki, Naoki Toyota

Institute for Materials Research (IMR) (institute affiliation only)

Research output: Contribution to journal › Article › peer-review

68 Citations (Scopus)

Abstract

The magnetic field-vs.-temperature phase diagram of the organic conductor α-(BEDT-TTF)₂KHg(SCN)₄ is presented. There appears around T_A=10K at H=0 a second-order phase transition from a normal metallic state to another metallic state associated with an antiferromagnetic-like magnetic-order. When the magnetic fields are applied normal to the conducting plane, T_A shifts to lower temperatures, and goes to zero at H_A(T=0)=23T. The inside region of the phase boundary encompassed by T_A and H_A is divided into two states by H_B(=7T around 1K; the reversible and irreversible states of both the magnetoresistance and magnetization for H<_B(T) and H>H_B(T), respectively. The third characteristic field H_C(T)(=10T at 1K) defined as the magnetic field where the magnetoresistance takes a maximum is located slightly above H_B(T). Discussion are made on this phase diagram.

Original language	English
Pages (from-to)	447-451
Number of pages	5
Journal	Solid State Communications
Volume	82
Issue number	6
DOIs	https://doi.org/10.1016/0038-1098(92)90747-W
Publication status	Published - 1992 May

ASJC Scopus subject areas

Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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title = "Magnetic phase diagram of the organic conductor α-(BEDT-TTF)2KHg(SCN)4",

abstract = "The magnetic field-vs.-temperature phase diagram of the organic conductor α-(BEDT-TTF)2KHg(SCN)4 is presented. There appears around TA=10K at H=0 a second-order phase transition from a normal metallic state to another metallic state associated with an antiferromagnetic-like magnetic-order. When the magnetic fields are applied normal to the conducting plane, TA shifts to lower temperatures, and goes to zero at HA(T=0)=23T. The inside region of the phase boundary encompassed by TA and HA is divided into two states by HB(=7T around 1K; the reversible and irreversible states of both the magnetoresistance and magnetization for H<B(T) and H>HB(T), respectively. The third characteristic field HC(T)(=10T at 1K) defined as the magnetic field where the magnetoresistance takes a maximum is located slightly above HB(T). Discussion are made on this phase diagram.",

author = "Takahiko Sasaki and Naoki Toyota",

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N2 - The magnetic field-vs.-temperature phase diagram of the organic conductor α-(BEDT-TTF)2KHg(SCN)4 is presented. There appears around TA=10K at H=0 a second-order phase transition from a normal metallic state to another metallic state associated with an antiferromagnetic-like magnetic-order. When the magnetic fields are applied normal to the conducting plane, TA shifts to lower temperatures, and goes to zero at HA(T=0)=23T. The inside region of the phase boundary encompassed by TA and HA is divided into two states by HB(=7T around 1K; the reversible and irreversible states of both the magnetoresistance and magnetization for H<B(T) and H>HB(T), respectively. The third characteristic field HC(T)(=10T at 1K) defined as the magnetic field where the magnetoresistance takes a maximum is located slightly above HB(T). Discussion are made on this phase diagram.

AB - The magnetic field-vs.-temperature phase diagram of the organic conductor α-(BEDT-TTF)2KHg(SCN)4 is presented. There appears around TA=10K at H=0 a second-order phase transition from a normal metallic state to another metallic state associated with an antiferromagnetic-like magnetic-order. When the magnetic fields are applied normal to the conducting plane, TA shifts to lower temperatures, and goes to zero at HA(T=0)=23T. The inside region of the phase boundary encompassed by TA and HA is divided into two states by HB(=7T around 1K; the reversible and irreversible states of both the magnetoresistance and magnetization for H<B(T) and H>HB(T), respectively. The third characteristic field HC(T)(=10T at 1K) defined as the magnetic field where the magnetoresistance takes a maximum is located slightly above HB(T). Discussion are made on this phase diagram.

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