Pressure dependence of the superconducting transition temperature of the stage-2 potassium mercurographitide intercalation compound

L. E. De Long; V. Yeh; P. C. Eklund

doi:10.1016/0038-1098(82)91073-0

Pressure dependence of the superconducting transition temperature of the stage-2 potassium mercurographitide intercalation compound

L. E. De Long, V. Yeh, P. C. Eklund

Physics And Astronomy

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Abstract

Measurements of the pressure (P) dependence of the superconducting transition temperature T_c of stage-two KHgC₈ are reported. T_c is found to decrease with applied pressure from a room pressure value of 1.85K at a rate dT_c/dP=-6.5 × 10^-5K/bar, similar to typical superconducting elements such as Sn. No superconductivity was detected for stage-one KHgC₄ or K_0.5Hg_0.5 amalgam to a limiting temperature T = 1.3K and a limiting pressure P = 22 kbar. These results are discussed in reference to the possible occurence of structural and charge density wave transitions in these materials and recent theoretical models of superconducting graphire intercalation compounds.

Original language	English
Pages (from-to)	1145-1150
Number of pages	6
Journal	Solid State Communications
Volume	44
Issue number	8
DOIs	https://doi.org/10.1016/0038-1098(82)91073-0
State	Published - Nov 1982

Bibliographical note

Funding Information:
Research supported by the United States Department of Energy under Contract Number DE-AS05-81ERI0936

ASJC Scopus subject areas

Chemistry (all)
Condensed Matter Physics
Materials Chemistry

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title = "Pressure dependence of the superconducting transition temperature of the stage-2 potassium mercurographitide intercalation compound",

abstract = "Measurements of the pressure (P) dependence of the superconducting transition temperature Tc of stage-two KHgC8 are reported. Tc is found to decrease with applied pressure from a room pressure value of 1.85K at a rate dTc/dP=-6.5 × 10-5K/bar, similar to typical superconducting elements such as Sn. No superconductivity was detected for stage-one KHgC4 or K0.5Hg0.5 amalgam to a limiting temperature T = 1.3K and a limiting pressure P = 22 kbar. These results are discussed in reference to the possible occurence of structural and charge density wave transitions in these materials and recent theoretical models of superconducting graphire intercalation compounds.",

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note = "Funding Information: Research supported by the United States Department of Energy under Contract Number DE-AS05-81ERI0936",

year = "1982",

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doi = "10.1016/0038-1098(82)91073-0",

language = "English",

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T1 - Pressure dependence of the superconducting transition temperature of the stage-2 potassium mercurographitide intercalation compound

AU - De Long, L. E.

AU - Yeh, V.

AU - Eklund, P. C.

N1 - Funding Information: Research supported by the United States Department of Energy under Contract Number DE-AS05-81ERI0936

PY - 1982/11

Y1 - 1982/11

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AB - Measurements of the pressure (P) dependence of the superconducting transition temperature Tc of stage-two KHgC8 are reported. Tc is found to decrease with applied pressure from a room pressure value of 1.85K at a rate dTc/dP=-6.5 × 10-5K/bar, similar to typical superconducting elements such as Sn. No superconductivity was detected for stage-one KHgC4 or K0.5Hg0.5 amalgam to a limiting temperature T = 1.3K and a limiting pressure P = 22 kbar. These results are discussed in reference to the possible occurence of structural and charge density wave transitions in these materials and recent theoretical models of superconducting graphire intercalation compounds.

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Pressure dependence of the superconducting transition temperature of the stage-2 potassium mercurographitide intercalation compound

Abstract

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