Pressure-temperature phase diagram of (DMDCNQI)2Ag: A comparative study with related compounds

R. T. Henriques; S. Tomic; W. Kang; D. Jérôme; F. Brisset; P. Batail; P. Erk; S. Hünig; J. U.von Schütz

doi:10.1016/0379-6779(88)90165-8

Pressure-temperature phase diagram of (DMDCNQI)₂Ag: A comparative study with related compounds

R. T. Henriques, S. Tomic, W. Kang, D. Jérôme, F. Brisset, P. Batail, P. Erk, S. Hünig, J. U.von Schütz

Department of Physics

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Abstract

The pressure-temperature phase diagram of the silver salt of the 2,5- dimethylcicyanoquinonediimine, (DMDCNQI)₂Ag, is established by electrical resistivity measurements. In it are included the temperatures of resistivity minima (T_ρ{variant}) and of the transition defined by the anomaly in the logarithmic derivative of the resistivity. Correlating the present data with the information from X-ray diffuse scattering and magnetic susceptibility, it is concluded that the low temperature insulating state has a spin-Peierls character. Other important feature of this material is a transition towards a more conductive state upon applying pressure of 10.4 kbar, at ambient temperature. The distinct behaviour of (DMDCNQI)₂Ag (abbreviated DM-Ag) relative to the Cu analog (DM-Cu) and (CIM-DCNQI)₂Cu (CM-Cu) is also discussed.

Original language	English
Pages (from-to)	333-338
Number of pages	6
Journal	Synthetic Metals
Volume	27
Issue number	3-4
DOIs	https://doi.org/10.1016/0379-6779(88)90165-8
State	Published - 30 Dec 1988

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title = "Pressure-temperature phase diagram of (DMDCNQI)2Ag: A comparative study with related compounds",

abstract = "The pressure-temperature phase diagram of the silver salt of the 2,5- dimethylcicyanoquinonediimine, (DMDCNQI)2Ag, is established by electrical resistivity measurements. In it are included the temperatures of resistivity minima (Tρ{variant}) and of the transition defined by the anomaly in the logarithmic derivative of the resistivity. Correlating the present data with the information from X-ray diffuse scattering and magnetic susceptibility, it is concluded that the low temperature insulating state has a spin-Peierls character. Other important feature of this material is a transition towards a more conductive state upon applying pressure of 10.4 kbar, at ambient temperature. The distinct behaviour of (DMDCNQI)2Ag (abbreviated DM-Ag) relative to the Cu analog (DM-Cu) and (CIM-DCNQI)2Cu (CM-Cu) is also discussed.",

author = "Henriques, {R. T.} and S. Tomic and W. Kang and D. J{\'e}r{\^o}me and F. Brisset and P. Batail and P. Erk and S. H{\"u}nig and Sch{\"u}tz, {J. U.von}",

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day = "30",

doi = "10.1016/0379-6779(88)90165-8",

language = "English",

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journal = "Synthetic Metals",

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TY - JOUR

T1 - Pressure-temperature phase diagram of (DMDCNQI)2Ag

T2 - A comparative study with related compounds

AU - Henriques, R. T.

AU - Tomic, S.

AU - Kang, W.

AU - Jérôme, D.

AU - Brisset, F.

AU - Batail, P.

AU - Erk, P.

AU - Hünig, S.

AU - Schütz, J. U.von

PY - 1988/12/30

Y1 - 1988/12/30

N2 - The pressure-temperature phase diagram of the silver salt of the 2,5- dimethylcicyanoquinonediimine, (DMDCNQI)2Ag, is established by electrical resistivity measurements. In it are included the temperatures of resistivity minima (Tρ{variant}) and of the transition defined by the anomaly in the logarithmic derivative of the resistivity. Correlating the present data with the information from X-ray diffuse scattering and magnetic susceptibility, it is concluded that the low temperature insulating state has a spin-Peierls character. Other important feature of this material is a transition towards a more conductive state upon applying pressure of 10.4 kbar, at ambient temperature. The distinct behaviour of (DMDCNQI)2Ag (abbreviated DM-Ag) relative to the Cu analog (DM-Cu) and (CIM-DCNQI)2Cu (CM-Cu) is also discussed.

AB - The pressure-temperature phase diagram of the silver salt of the 2,5- dimethylcicyanoquinonediimine, (DMDCNQI)2Ag, is established by electrical resistivity measurements. In it are included the temperatures of resistivity minima (Tρ{variant}) and of the transition defined by the anomaly in the logarithmic derivative of the resistivity. Correlating the present data with the information from X-ray diffuse scattering and magnetic susceptibility, it is concluded that the low temperature insulating state has a spin-Peierls character. Other important feature of this material is a transition towards a more conductive state upon applying pressure of 10.4 kbar, at ambient temperature. The distinct behaviour of (DMDCNQI)2Ag (abbreviated DM-Ag) relative to the Cu analog (DM-Cu) and (CIM-DCNQI)2Cu (CM-Cu) is also discussed.

UR - http://www.scopus.com/inward/record.url?scp=0024125490&partnerID=8YFLogxK

U2 - 10.1016/0379-6779(88)90165-8

DO - 10.1016/0379-6779(88)90165-8

M3 - Article

AN - SCOPUS:0024125490

SN - 0379-6779

VL - 27

SP - 333

EP - 338

JO - Synthetic Metals

JF - Synthetic Metals

IS - 3-4

ER -

Pressure-temperature phase diagram of (DMDCNQI)2Ag: A comparative study with related compounds

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Pressure-temperature phase diagram of (DMDCNQI)₂Ag: A comparative study with related compounds