Effects of impurities on the phase transition of an itinerant electron antiferromagnet

Journal Article · Sat Jun 01 04:00:00 EDT 1974 · J. Low Temp. Phys.; (United States)

DOI:https://doi.org/10.1007/BF00654631· OSTI ID:7086315

Fenton, E W

Theory of the phase transition of an itinerant electron antiferromagnet is similar to superconductivity theory, including singular contributions to the specific heat and other properties at the transition temperature. The effects of a small concentration of normal impurities, which are pair breaking for the antiferromagnet, are calculated for temperatures near T/sub c/. The principal effect of normal homovalent impurities is temperature smearing of the phase transition due to inhomogeneous electron-impurity scattering. This temperature smearing removes the singularities, leaving peaks with finite amplitudes which depend on the impurity concentration in a simple manner. Recent experimental results for chromium are discussed. 17 refs.

• Research Organization: National Research Council, Ottawa
• OSTI ID: 7086315
• Journal Information: J. Low Temp. Phys.; (United States), Journal Name: J. Low Temp. Phys.; (United States) Vol. 15:5-6; ISSN JLTPA
• Country of Publication: United States
• Language: English

Related Subjects

656000* -- Condensed Matter Physics
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETIC MATERIALS
CHROMIUM
ELEMENTS
IMPURITIES
MAGNETIC MATERIALS
MATERIALS
METALS
PHASE TRANSFORMATIONS
TRANSITION ELEMENTS