Localized magnetic moments on chromium and manganese dopant atoms in niobium and vanadium

Journal Article · Fri Mar 01 04:00:00 EST 1985 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.31.3003· OSTI ID:6064665

Roy, A; Buchanan, D S; Holmgren, D J; Ginsberg, D M

We have made magnetic susceptibility measurements on films of Nb and V, pure and doped with Cr and Mn. The results indicate the presence of localized moments on Cr and Mn dopant atoms in both Nb and V. We discuss the data in terms of a model which takes the magnetic behavior of the host metals into account. We have also measured the superconducting transition temperature, T/sub c/, and the upper critical magnetic field, H/sub c/2(T), of several Nb films, pure and doped with Cr and Mn. We find that T/sub c/ of Nb is decreased in the presence of Cr or Mn, by amounts that are consistent with the existence of localized moments. The results for H/sub c/2(T) indicate, for both Cr and Mn dopants in Nb, that the pair-breaking effect of the magnetic dopants is additive with that of the applied magnetic field.

• Research Organization: Department of Physics and Materials Research Laboratory, University of Illinois at UrbanaChampaign, 1110 West Green Street, Urbana, Illinois 61801
• OSTI ID: 6064665
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 31:5; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
CHROMIUM
CRITICAL FIELD
DATA
DOPED MATERIALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
EPITAXY
EXPERIMENTAL DATA
FILMS
INFORMATION
MAGNETIC FIELDS
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MAGNETIC SUSCEPTIBILITY
MANGANESE
MATERIALS
METALS
MOLECULAR BEAM EPITAXY
NIOBIUM
NUMERICAL DATA
PHYSICAL PROPERTIES
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENTS
TRANSITION TEMPERATURE
TUNNEL EFFECT
ULTRAHIGH VACUUM
VANADIUM