Effect of hydrostatic pressure on molecular conductors, Pd(dmit) 2 salts

Y. Ishii; M. Tamura; R. Kato; M. Hedo; Y. Uwatoko; N. Môri

doi:10.1016/j.synthmet.2005.07.117

Effect of hydrostatic pressure on molecular conductors, Pd(dmit) ₂ salts

Y. Ishii, M. Tamura, R. Kato, M. Hedo, Y. Uwatoko, N. Môri

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

4 Citations (Scopus)

Abstract

A series of molecular conductors β′-(cation)[Pd(dmit) ₂]₂ (cation = Et₂Me₂P and Me ₄P) exhibit various complicated pressure-induced phenomena. Resistivity measurements under high pressure up to 8 GPa have been carried out using a clamp-type piston-cylinder cell and cubic anvil type high pressure apparatus. The Et₂Me₂P salt shows non-metallic phases at low and high pressure regions, between which a metallic phase appears. The application of pressure suppresses the low-temperature resistivity of this salt. However, the non-metallic behavior still remains at low temperature under 8 GPa. For the Me₄P salt, the metal-to-non-metal transition temperature reaches a minimum at 0.83 GPa and turns to increase with increasing pressure up to 8 GPa, showing no metallic state stable at low temperature

Original language	English
Pages (from-to)	389-392
Number of pages	4
Journal	Synthetic Metals
Volume	152
Issue number	1-3
DOIs	https://doi.org/10.1016/j.synthmet.2005.07.117
Publication status	Published - 2005 Sept 20
Externally published	Yes

Keywords

Conductivity
Metal-Insulator transition
Organic conductors based on radical 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/j.synthmet.2005.07.117

Cite this

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title = "Effect of hydrostatic pressure on molecular conductors, Pd(dmit) 2 salts",

abstract = "A series of molecular conductors β′-(cation)[Pd(dmit) 2]2 (cation = Et2Me2P and Me 4P) exhibit various complicated pressure-induced phenomena. Resistivity measurements under high pressure up to 8 GPa have been carried out using a clamp-type piston-cylinder cell and cubic anvil type high pressure apparatus. The Et2Me2P salt shows non-metallic phases at low and high pressure regions, between which a metallic phase appears. The application of pressure suppresses the low-temperature resistivity of this salt. However, the non-metallic behavior still remains at low temperature under 8 GPa. For the Me4P salt, the metal-to-non-metal transition temperature reaches a minimum at 0.83 GPa and turns to increase with increasing pressure up to 8 GPa, showing no metallic state stable at low temperature",

keywords = "Conductivity, Metal-Insulator transition, Organic conductors based on radical anion salts",

author = "Y. Ishii and M. Tamura and R. Kato and M. Hedo and Y. Uwatoko and N. M{\^o}ri",

year = "2005",

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AU - Ishii, Y.

AU - Tamura, M.

AU - Kato, R.

AU - Hedo, M.

AU - Uwatoko, Y.

AU - Môri, N.

PY - 2005/9/20

Y1 - 2005/9/20

N2 - A series of molecular conductors β′-(cation)[Pd(dmit) 2]2 (cation = Et2Me2P and Me 4P) exhibit various complicated pressure-induced phenomena. Resistivity measurements under high pressure up to 8 GPa have been carried out using a clamp-type piston-cylinder cell and cubic anvil type high pressure apparatus. The Et2Me2P salt shows non-metallic phases at low and high pressure regions, between which a metallic phase appears. The application of pressure suppresses the low-temperature resistivity of this salt. However, the non-metallic behavior still remains at low temperature under 8 GPa. For the Me4P salt, the metal-to-non-metal transition temperature reaches a minimum at 0.83 GPa and turns to increase with increasing pressure up to 8 GPa, showing no metallic state stable at low temperature

AB - A series of molecular conductors β′-(cation)[Pd(dmit) 2]2 (cation = Et2Me2P and Me 4P) exhibit various complicated pressure-induced phenomena. Resistivity measurements under high pressure up to 8 GPa have been carried out using a clamp-type piston-cylinder cell and cubic anvil type high pressure apparatus. The Et2Me2P salt shows non-metallic phases at low and high pressure regions, between which a metallic phase appears. The application of pressure suppresses the low-temperature resistivity of this salt. However, the non-metallic behavior still remains at low temperature under 8 GPa. For the Me4P salt, the metal-to-non-metal transition temperature reaches a minimum at 0.83 GPa and turns to increase with increasing pressure up to 8 GPa, showing no metallic state stable at low temperature

KW - Conductivity

KW - Metal-Insulator transition

KW - Organic conductors based on radical anion salts

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