Superconductivity and spin-density waves

Journal Article · Sat Apr 01 04:00:00 EST 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.6431· OSTI ID:6180202

Daemen, L L; Overhauser, A W

Superconductivity in a metal with a spin-density-wave (SDW) broken symmetry is investigated within the framework of the Bardeen-Cooper-Schrieffer (BCS) theory. The gap equation is solved analytically, leading to a gap that falls to zero at the SDW gap for a spiral SDW, and to a small, but nonzero value, for a linear SDW. The electronic specific heat in the superconducting state acquires a low-temperature tail, far in excess of a BCS exponential falloff. The ultrasonic attenuation exhibits a similar deviation from the usual BCS result.

• Research Organization: Department of Physics, Purdue University, West Lafayette, Indiana 47907
• OSTI ID: 6180202
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:10; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

656100* -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
BCS THEORY
CORRELATIONS
DENSITY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY GAP
LEAD
MAGNETISM
METALS
PHYSICAL PROPERTIES
SPECIFIC HEAT
SPIN WAVES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
WAVE PROPAGATION