Specific heat of a V3Si crystal: Evidence of weak coupling superconductivity

C. C. Huang; A. M. Goldman; L. E. Toth

doi:10.1016/0378-4363(81)90968-2

Specific heat of a V₃Si crystal: Evidence of weak coupling superconductivity

C. C. Huang
, A. M. Goldman
, L. E. Toth

Physics and Astronomy (Twin Cities)

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

4 Scopus citations

Abstract

The specific heat of a transforming V₃Si crystal with a superconducting transition temperature of 16.8 K has been measured as a function of temperature over the range from 30 K to 2.6 K. The electronic specific heat in the superconducting state is found to be that of a weak-coupling BCS superconductor characterized by 2Δ(0) k_BT_c = 3.46. This result follows from an analysis in which the lattice specific heat below the structural transition temperature is treated using a simple Debye model.

Original language	English (US)
Pages (from-to)	1339-1340
Number of pages	2
Journal	Physica B+C
Volume	108
Issue number	1-3
DOIs	https://doi.org/10.1016/0378-4363(81)90968-2
State	Published - 1981

Bibliographical note

Funding Information:
It should be noted that a systematic investigation of heat capacities of high-quality crystalline samples with different values of T c has not been carried out. It is not incon~ ceivable that crystals witch T c < 17.0 K such as the one reported here could be weak-coupling whereas those with T c > 17.0 K such as that of Ref (5) could be strong coupling. There is evidence of this t)~e of behavior in tunneling experiments on films.\[2\] This work was supported by the DOE under Contract DE-AC02-79ERI0461 and by the NSF under Grant NSF/DMR-806959.

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10.1016/0378-4363(81)90968-2

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@article{20c2571299b04c36b53d7d2e86c23bac,

title = "Specific heat of a V3Si crystal: Evidence of weak coupling superconductivity",

abstract = "The specific heat of a transforming V3Si crystal with a superconducting transition temperature of 16.8 K has been measured as a function of temperature over the range from 30 K to 2.6 K. The electronic specific heat in the superconducting state is found to be that of a weak-coupling BCS superconductor characterized by 2Δ(0) kBTc = 3.46. This result follows from an analysis in which the lattice specific heat below the structural transition temperature is treated using a simple Debye model.",

author = "Huang, \{C. C.\} and Goldman, \{A. M.\} and Toth, \{L. E.\}",

note = "Funding Information: It should be noted that a systematic investigation of heat capacities of high-quality crystalline samples with different values of T c has not been carried out. It is not incon\textasciitilde{} ceivable that crystals witch T c < 17.0 K such as the one reported here could be weak-coupling whereas those with T c > 17.0 K such as that of Ref (5) could be strong coupling. There is evidence of this t)\textasciitilde{}e of behavior in tunneling experiments on films.\textbackslash{}[2\textbackslash{}] This work was supported by the DOE under Contract DE-AC02-79ERI0461 and by the NSF under Grant NSF/DMR-806959.",

year = "1981",

doi = "10.1016/0378-4363(81)90968-2",

language = "English (US)",

volume = "108",

pages = "1339--1340",

journal = "Physica B+C",

issn = "0378-4363",

publisher = "North-Holland Publ Co",

number = "1-3",

}

TY - JOUR

T1 - Specific heat of a V3Si crystal

T2 - Evidence of weak coupling superconductivity

AU - Huang, C. C.

AU - Goldman, A. M.

AU - Toth, L. E.

N1 - Funding Information: It should be noted that a systematic investigation of heat capacities of high-quality crystalline samples with different values of T c has not been carried out. It is not incon~ ceivable that crystals witch T c < 17.0 K such as the one reported here could be weak-coupling whereas those with T c > 17.0 K such as that of Ref (5) could be strong coupling. There is evidence of this t)~e of behavior in tunneling experiments on films.\[2\] This work was supported by the DOE under Contract DE-AC02-79ERI0461 and by the NSF under Grant NSF/DMR-806959.

PY - 1981

Y1 - 1981

N2 - The specific heat of a transforming V3Si crystal with a superconducting transition temperature of 16.8 K has been measured as a function of temperature over the range from 30 K to 2.6 K. The electronic specific heat in the superconducting state is found to be that of a weak-coupling BCS superconductor characterized by 2Δ(0) kBTc = 3.46. This result follows from an analysis in which the lattice specific heat below the structural transition temperature is treated using a simple Debye model.

AB - The specific heat of a transforming V3Si crystal with a superconducting transition temperature of 16.8 K has been measured as a function of temperature over the range from 30 K to 2.6 K. The electronic specific heat in the superconducting state is found to be that of a weak-coupling BCS superconductor characterized by 2Δ(0) kBTc = 3.46. This result follows from an analysis in which the lattice specific heat below the structural transition temperature is treated using a simple Debye model.

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U2 - 10.1016/0378-4363(81)90968-2

DO - 10.1016/0378-4363(81)90968-2

M3 - Article

AN - SCOPUS:0019601353

SN - 0378-4363

VL - 108

SP - 1339

EP - 1340

JO - Physica B+C

JF - Physica B+C

IS - 1-3

ER -