Control of electronic properties of organic conductors by uniaxial strain method

S. Kagoshima; M. Maesato; R. Kondo; T. Shibata; H. Hirai

doi:10.1016/S0379-6779(00)01104-8

Control of electronic properties of organic conductors by uniaxial strain method

S. Kagoshima, M. Maesato, R. Kondo, T. Shibata, H. Hirai

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

5 Citations (Scopus)

Abstract

We succeeded to artificially control the electronic properties of some BEDT-TTF and TMTSF salts by shortening the intermolecular distance along a desired direction without changing those along others (uniaxial strain method). We were able to make α-(BEDT-TTF)₂KHg(SCN)₄ and its NH₄ analogue behave similarly to each other by controlling the lattice parameters a and c independently. The former compound was found to show the superconductivity like the latter and the latter the nesting instability like the former. It is possible to systematically understand the electronic properties of these materials as a function of c/a. In (TMTSF)₂PF₆, contrary to conventional expectations, the reduction of the lattice parameter a, but not those perpendicular to a, plays a key role to suppress the SDW and induces the superconductivity.

Original language	English
Pages (from-to)	683-686
Number of pages	4
Journal	Synthetic Metals
Volume	120
Issue number	1-3
DOIs	https://doi.org/10.1016/S0379-6779(00)01104-8
Publication status	Published - Mar 15 2001
Externally published	Yes

Keywords

Metal-insulator transitions
Organic conductors based on radical cation and/or anion salts
Organic superconductors
Superconducting phase transitions
Transport measurements, conductivity, Hall effect, magnetotransport

ASJC Scopus subject areas

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

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10.1016/S0379-6779(00)01104-8

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title = "Control of electronic properties of organic conductors by uniaxial strain method",

abstract = "We succeeded to artificially control the electronic properties of some BEDT-TTF and TMTSF salts by shortening the intermolecular distance along a desired direction without changing those along others (uniaxial strain method). We were able to make α-(BEDT-TTF)2KHg(SCN)4 and its NH4 analogue behave similarly to each other by controlling the lattice parameters a and c independently. The former compound was found to show the superconductivity like the latter and the latter the nesting instability like the former. It is possible to systematically understand the electronic properties of these materials as a function of c/a. In (TMTSF)2PF6, contrary to conventional expectations, the reduction of the lattice parameter a, but not those perpendicular to a, plays a key role to suppress the SDW and induces the superconductivity.",

keywords = "Metal-insulator transitions, Organic conductors based on radical cation and/or anion salts, Organic superconductors, Superconducting phase transitions, Transport measurements, conductivity, Hall effect, magnetotransport",

author = "S. Kagoshima and M. Maesato and R. Kondo and T. Shibata and H. Hirai",

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T1 - Control of electronic properties of organic conductors by uniaxial strain method

AU - Kagoshima, S.

AU - Maesato, M.

AU - Kondo, R.

AU - Shibata, T.

AU - Hirai, H.

PY - 2001/3/15

Y1 - 2001/3/15

N2 - We succeeded to artificially control the electronic properties of some BEDT-TTF and TMTSF salts by shortening the intermolecular distance along a desired direction without changing those along others (uniaxial strain method). We were able to make α-(BEDT-TTF)2KHg(SCN)4 and its NH4 analogue behave similarly to each other by controlling the lattice parameters a and c independently. The former compound was found to show the superconductivity like the latter and the latter the nesting instability like the former. It is possible to systematically understand the electronic properties of these materials as a function of c/a. In (TMTSF)2PF6, contrary to conventional expectations, the reduction of the lattice parameter a, but not those perpendicular to a, plays a key role to suppress the SDW and induces the superconductivity.

AB - We succeeded to artificially control the electronic properties of some BEDT-TTF and TMTSF salts by shortening the intermolecular distance along a desired direction without changing those along others (uniaxial strain method). We were able to make α-(BEDT-TTF)2KHg(SCN)4 and its NH4 analogue behave similarly to each other by controlling the lattice parameters a and c independently. The former compound was found to show the superconductivity like the latter and the latter the nesting instability like the former. It is possible to systematically understand the electronic properties of these materials as a function of c/a. In (TMTSF)2PF6, contrary to conventional expectations, the reduction of the lattice parameter a, but not those perpendicular to a, plays a key role to suppress the SDW and induces the superconductivity.

KW - Metal-insulator transitions

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

KW - Organic superconductors

KW - Superconducting phase transitions

KW - Transport measurements, conductivity, Hall effect, magnetotransport

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U2 - 10.1016/S0379-6779(00)01104-8

DO - 10.1016/S0379-6779(00)01104-8

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VL - 120

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EP - 686

JO - Synthetic Metals

JF - Synthetic Metals

IS - 1-3

ER -

Control of electronic properties of organic conductors by uniaxial strain method

Abstract

Keywords

ASJC Scopus subject areas

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