Probing electronic density of states and magnetic interactions at the rare-earth site in ErBa/sub 2/Cu/sub 3/O/sub 7/

Journal Article · Tue Dec 01 04:00:00 EST 1987 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.36.8899· OSTI ID:5619408

Walter, U; Fahy, S; Zettl, A; Louie, S G; Cohen, M L; Tejedor, P; Stacy, A M

By exploiting the 4f-shell properties of Er in the high-T/sub c/ superconductor ErBa/sub 2/Cu/sub 3/O/sub 7/, we find by inelastic magnetic neutron scattering that the electrostatic field around the rare-earth site is anomalously large. Above T/sub c/ there exists considerable magnetic interaction between the conduction electrons and the rare-earth's 4f shell: N(E/sub F/)J/sub ex/ = 0.025. This interaction is lost in the superconducting state. The ground-state magnetic moment of Er in the host lattice is ..mu../sub e//sub f//sub f/ = 5.3..mu../sub B/. .AE

• Research Organization: Department of Physics, University of California, Berkeley, California 94720
• OSTI ID: 5619408
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 36:16; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
656100 -- Condensed Matter Physics-- Superconductivity
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
COHERENT SCATTERING
COPPER COMPOUNDS
COPPER OXIDES
CRYSTAL FIELD
DIFFRACTION
ENERGY-LEVEL DENSITY
ERBIUM COMPOUNDS
ERBIUM OXIDES
INELASTIC SCATTERING
LOW TEMPERATURE
MAGNETIC MOMENTS
MAGNETIC PROPERTIES
MEDIUM TEMPERATURE
NEUTRON DIFFRACTION
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
SCATTERING
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
ULTRALOW TEMPERATURE