Study of magnetoresistance under hydrostatic pressure in the deuterated organic superconductor d8-κ-(BEDT-TTF)2Cu(SCN)2

T. Biggs; D. J. Bakker; A. K. Klehe; J. A. Symington; J. Singleton; T. Sasaki; M. Kurmoo

doi:10.1016/S0379-6779(02)00287-4

Study of magnetoresistance under hydrostatic pressure in the deuterated organic superconductor d₈-κ-(BEDT-TTF)₂Cu(SCN)₂

T. Biggs, D. J. Bakker, A. K. Klehe, J. A. Symington, J. Singleton, T. Sasaki, M. Kurmoo

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

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

Abstract

The Fermi surface topology of the deuterated organic superconductor d₈-κ-(BEDT-TTF)₂Cu(SCN)₂ has been investigated by Shubnikov-de-Haas measurements under hydrostatic pressure (P < 1.5 GPa), in high magnetic fields (B < 17 T) and at low temperatures (T > 900 mK). The pressure dependences of the α-orbit, as well as the effective mass, m*, are resolved and correlated with the suppression of the superconductivity transition temperature, T_c, with increasing pressure. Superconductivity in d₈-κ-(BEDT-TTF)₂Cu(SCN)₂ appears to be fully suppressed at pressures exceeding 0.25 GPa. The gap between the quasi-one-dimensional and quasi-two-dimensional section of the Fermi surface is seen to decrease with pressure. This gap, indicated by the magnetic breakdown field, is smaller in the deuterated than in the protonated sample.

Original language	English
Pages (from-to)	239-240
Number of pages	2
Journal	Synthetic Metals
Volume	133-134
DOIs	https://doi.org/10.1016/S0379-6779(02)00287-4
Publication status	Published - 2003 Mar 13
Event	ISCOM 2001 - Rusutsu, Hokkaido, Japan Duration: 2001 Sept 10 → 2001 Sept 14

Keywords

BEDT-TTF
Deuteration
Effective mass
Organic superconductor
Pressure
Shubnikov-de-Haas

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)00287-4

Cite this

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title = "Study of magnetoresistance under hydrostatic pressure in the deuterated organic superconductor d8-κ-(BEDT-TTF)2Cu(SCN)2",

abstract = "The Fermi surface topology of the deuterated organic superconductor d8-κ-(BEDT-TTF)2Cu(SCN)2 has been investigated by Shubnikov-de-Haas measurements under hydrostatic pressure (P < 1.5 GPa), in high magnetic fields (B < 17 T) and at low temperatures (T > 900 mK). The pressure dependences of the α-orbit, as well as the effective mass, m*, are resolved and correlated with the suppression of the superconductivity transition temperature, Tc, with increasing pressure. Superconductivity in d8-κ-(BEDT-TTF)2Cu(SCN)2 appears to be fully suppressed at pressures exceeding 0.25 GPa. The gap between the quasi-one-dimensional and quasi-two-dimensional section of the Fermi surface is seen to decrease with pressure. This gap, indicated by the magnetic breakdown field, is smaller in the deuterated than in the protonated sample.",

keywords = "BEDT-TTF, Deuteration, Effective mass, Organic superconductor, Pressure, Shubnikov-de-Haas",

author = "T. Biggs and Bakker, {D. J.} and Klehe, {A. K.} and Symington, {J. A.} and J. Singleton and T. Sasaki and M. Kurmoo",

year = "2003",

month = mar,

day = "13",

doi = "10.1016/S0379-6779(02)00287-4",

language = "English",

volume = "133-134",

pages = "239--240",

journal = "Synthetic Metals",

issn = "0379-6779",

publisher = "Elsevier BV",

note = "ISCOM 2001 ; Conference date: 10-09-2001 Through 14-09-2001",

}

TY - JOUR

T1 - Study of magnetoresistance under hydrostatic pressure in the deuterated organic superconductor d8-κ-(BEDT-TTF)2Cu(SCN)2

AU - Biggs, T.

AU - Bakker, D. J.

AU - Klehe, A. K.

AU - Symington, J. A.

AU - Singleton, J.

AU - Sasaki, T.

AU - Kurmoo, M.

PY - 2003/3/13

Y1 - 2003/3/13

N2 - The Fermi surface topology of the deuterated organic superconductor d8-κ-(BEDT-TTF)2Cu(SCN)2 has been investigated by Shubnikov-de-Haas measurements under hydrostatic pressure (P < 1.5 GPa), in high magnetic fields (B < 17 T) and at low temperatures (T > 900 mK). The pressure dependences of the α-orbit, as well as the effective mass, m*, are resolved and correlated with the suppression of the superconductivity transition temperature, Tc, with increasing pressure. Superconductivity in d8-κ-(BEDT-TTF)2Cu(SCN)2 appears to be fully suppressed at pressures exceeding 0.25 GPa. The gap between the quasi-one-dimensional and quasi-two-dimensional section of the Fermi surface is seen to decrease with pressure. This gap, indicated by the magnetic breakdown field, is smaller in the deuterated than in the protonated sample.

AB - The Fermi surface topology of the deuterated organic superconductor d8-κ-(BEDT-TTF)2Cu(SCN)2 has been investigated by Shubnikov-de-Haas measurements under hydrostatic pressure (P < 1.5 GPa), in high magnetic fields (B < 17 T) and at low temperatures (T > 900 mK). The pressure dependences of the α-orbit, as well as the effective mass, m*, are resolved and correlated with the suppression of the superconductivity transition temperature, Tc, with increasing pressure. Superconductivity in d8-κ-(BEDT-TTF)2Cu(SCN)2 appears to be fully suppressed at pressures exceeding 0.25 GPa. The gap between the quasi-one-dimensional and quasi-two-dimensional section of the Fermi surface is seen to decrease with pressure. This gap, indicated by the magnetic breakdown field, is smaller in the deuterated than in the protonated sample.

KW - BEDT-TTF

KW - Deuteration

KW - Effective mass

KW - Organic superconductor

KW - Pressure

KW - Shubnikov-de-Haas

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U2 - 10.1016/S0379-6779(02)00287-4

DO - 10.1016/S0379-6779(02)00287-4

M3 - Conference article

AN - SCOPUS:0037435189

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VL - 133-134

SP - 239

EP - 240

JO - Synthetic Metals

JF - Synthetic Metals

T2 - ISCOM 2001

Y2 - 10 September 2001 through 14 September 2001

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