Abstract
Results of self-consistent electronic structure calculations are reported for metastable fcc Cr metal. Unlike the case of bcc Cr which has EF at a minimum in the density of states (DOS), the DOS at EF in fcc Cr is at a peak making this one of the higher-DOS metals with the fcc structure (e.g., comparable with that of Ni and Pt). A calculated Stoner factor of 0.82 indicates that ferromagnetic ordering is not expected. Calculations of the electron-phonon coupling parameter and superconducting transition temperature Tc were made using the rigid-ion approximation and strong-coupling theory with various estimates of the (unknown) phonon contribution. We conclude that Tc's2.5 K are reasonable, although they are substantially smaller than the Tc10 K derived from measurements on Au-Cr-Au sandwiches.
| Original language | English |
|---|---|
| Pages (from-to) | 1250-1252 |
| Number of pages | 3 |
| Journal | Physical Review B |
| Volume | 29 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1984 |
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ASJC Scopus subject areas
- Condensed Matter Physics
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Electronic structure and superconductivity of fcc Cr. / Xu, Jian Hua; Freeman, Arthur J; Jarlborg, T.; Brodsky, M. B.
In: Physical Review B, Vol. 29, No. 3, 1984, p. 1250-1252.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Electronic structure and superconductivity of fcc Cr
AU - Xu, Jian Hua
AU - Freeman, Arthur J
AU - Jarlborg, T.
AU - Brodsky, M. B.
PY - 1984
Y1 - 1984
N2 - Results of self-consistent electronic structure calculations are reported for metastable fcc Cr metal. Unlike the case of bcc Cr which has EF at a minimum in the density of states (DOS), the DOS at EF in fcc Cr is at a peak making this one of the higher-DOS metals with the fcc structure (e.g., comparable with that of Ni and Pt). A calculated Stoner factor of 0.82 indicates that ferromagnetic ordering is not expected. Calculations of the electron-phonon coupling parameter and superconducting transition temperature Tc were made using the rigid-ion approximation and strong-coupling theory with various estimates of the (unknown) phonon contribution. We conclude that Tc's2.5 K are reasonable, although they are substantially smaller than the Tc10 K derived from measurements on Au-Cr-Au sandwiches.
AB - Results of self-consistent electronic structure calculations are reported for metastable fcc Cr metal. Unlike the case of bcc Cr which has EF at a minimum in the density of states (DOS), the DOS at EF in fcc Cr is at a peak making this one of the higher-DOS metals with the fcc structure (e.g., comparable with that of Ni and Pt). A calculated Stoner factor of 0.82 indicates that ferromagnetic ordering is not expected. Calculations of the electron-phonon coupling parameter and superconducting transition temperature Tc were made using the rigid-ion approximation and strong-coupling theory with various estimates of the (unknown) phonon contribution. We conclude that Tc's2.5 K are reasonable, although they are substantially smaller than the Tc10 K derived from measurements on Au-Cr-Au sandwiches.
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U2 - 10.1103/PhysRevB.29.1250
DO - 10.1103/PhysRevB.29.1250
M3 - Article
VL - 29
SP - 1250
EP - 1252
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 3
ER -