Magnetic field dependence of the SDW phase in (TMTSF)2PF6 under pressure

K. Yamashita; N. Matsunaga; K. Nomura; T. Sasaki; T. Hanajiri; J. Yamada; S. Nakatsuji; H. Anzai

doi:10.1016/S0379-6779(02)00263-1

Magnetic field dependence of the SDW phase in (TMTSF)₂PF₆ under pressure

K. Yamashita, N. Matsunaga, K. Nomura, T. Sasaki, T. Hanajiri, J. Yamada, S. Nakatsuji, H. Anzai

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

Research output: Contribution to journal › Conference article › peer-review

2 Citations (Scopus)

Abstract

The transverse magnetoresistance has been measured in (TMTSF)₂PF₆ under pressure, with the field parallel to the c^* axis. At 0.85 GPa, the spin-density-wave (SDW) transition temperature T_SDW increases quadratically with the applied magnetic field, and a saturation behavior is observed in high magnetic fields. These results are consistent with the mean field theory. From these behaviors, T_SDW for the perfect nesting case, Fermi velocity and imperfect nesting parameter at 0.85 GPa are estimated as T_SDW0 = 14.5 K, v_F = 8.55 × 10⁴ m/s and ε₀/Δ₀ = 0.996 using the mean field theory, respectively. The SDW phase diagram of (TMTSF)₂X can be described by taking into account the reduction of the coupling constant by the pressure.

Original language	English
Pages (from-to)	63-64
Number of pages	2
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00263-1
Publication status	Published - 2003 Mar 13
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sept 10 → 2001 Sept 14

Keywords

Magnetotransport
Metal-insulator phase transitions
Organic conductors based on radical cation and/or anion salts

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/S0379-6779(02)00263-1

Cite this

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title = "Magnetic field dependence of the SDW phase in (TMTSF)2PF6 under pressure",

abstract = "The transverse magnetoresistance has been measured in (TMTSF)2PF6 under pressure, with the field parallel to the c* axis. At 0.85 GPa, the spin-density-wave (SDW) transition temperature TSDW increases quadratically with the applied magnetic field, and a saturation behavior is observed in high magnetic fields. These results are consistent with the mean field theory. From these behaviors, TSDW for the perfect nesting case, Fermi velocity and imperfect nesting parameter at 0.85 GPa are estimated as TSDW0 = 14.5 K, vF = 8.55 × 104 m/s and ε0/Δ0 = 0.996 using the mean field theory, respectively. The SDW phase diagram of (TMTSF)2X can be described by taking into account the reduction of the coupling constant by the pressure.",

keywords = "Magnetotransport, Metal-insulator phase transitions, Organic conductors based on radical cation and/or anion salts",

author = "K. Yamashita and N. Matsunaga and K. Nomura and T. Sasaki and T. Hanajiri and J. Yamada and S. Nakatsuji and H. Anzai",

note = "Funding Information: We would like to thank Professor K. Murata for technical advice on the high-pressure measurement. Some of this work was carried out as part of the “Research for the Future” project, JSPS-RFTF97P00105, supported by the Japan Society for the Promotion of Science. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.; ISCOM 2001 ; Conference date: 10-09-2001 Through 14-09-2001",

year = "2003",

month = mar,

day = "13",

doi = "10.1016/S0379-6779(02)00263-1",

language = "English",

volume = "133-134",

pages = "63--64",

journal = "Synthetic Metals",

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TY - JOUR

T1 - Magnetic field dependence of the SDW phase in (TMTSF)2PF6 under pressure

AU - Yamashita, K.

AU - Matsunaga, N.

AU - Nomura, K.

AU - Sasaki, T.

AU - Hanajiri, T.

AU - Yamada, J.

AU - Nakatsuji, S.

AU - Anzai, H.

N1 - Funding Information: We would like to thank Professor K. Murata for technical advice on the high-pressure measurement. Some of this work was carried out as part of the “Research for the Future” project, JSPS-RFTF97P00105, supported by the Japan Society for the Promotion of Science. Copyright: Copyright 2004 Elsevier Science B.V., Amsterdam. All rights reserved.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - The transverse magnetoresistance has been measured in (TMTSF)2PF6 under pressure, with the field parallel to the c* axis. At 0.85 GPa, the spin-density-wave (SDW) transition temperature TSDW increases quadratically with the applied magnetic field, and a saturation behavior is observed in high magnetic fields. These results are consistent with the mean field theory. From these behaviors, TSDW for the perfect nesting case, Fermi velocity and imperfect nesting parameter at 0.85 GPa are estimated as TSDW0 = 14.5 K, vF = 8.55 × 104 m/s and ε0/Δ0 = 0.996 using the mean field theory, respectively. The SDW phase diagram of (TMTSF)2X can be described by taking into account the reduction of the coupling constant by the pressure.

AB - The transverse magnetoresistance has been measured in (TMTSF)2PF6 under pressure, with the field parallel to the c* axis. At 0.85 GPa, the spin-density-wave (SDW) transition temperature TSDW increases quadratically with the applied magnetic field, and a saturation behavior is observed in high magnetic fields. These results are consistent with the mean field theory. From these behaviors, TSDW for the perfect nesting case, Fermi velocity and imperfect nesting parameter at 0.85 GPa are estimated as TSDW0 = 14.5 K, vF = 8.55 × 104 m/s and ε0/Δ0 = 0.996 using the mean field theory, respectively. The SDW phase diagram of (TMTSF)2X can be described by taking into account the reduction of the coupling constant by the pressure.

KW - Magnetotransport

KW - Metal-insulator phase transitions

KW - Organic conductors based on radical cation and/or anion salts

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JO - Synthetic Metals

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T2 - ISCOM 2001

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