Neutron scattering study of the magnetic transition in (Ho/sub 1-x/Er/sub x/)Rh/sub 4/B/sub 4/ alloys

Journal Article · Fri Jan 01 04:00:00 EST 1982 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.25.372· OSTI ID:5739982

Mook, H A; Koehler, W C; Maple, M B; Fisk, Z; Johnston, D C; Woolf, L D

Using neutron scattering techniques we have examined the magnetic transitions for compounds in the (Ho/sub 1-x/Er/sub x/)Rh/sub 4/B/sub 4/ pseudoternary system. We find a wide variety of behavior ranging from mean-field behavior for HoRh/sub 4/B/sub 4/ to complicated behavior with more than one type of ordering for Ho/sub 0.3/Er/sub 0.7/Rh/sub 4/B/sub 4/. Our results for the pseudoternary compounds are consistent with a model in which Ho orders along the c axis with nearly its free-ion moment, while Er orders in the basal plane, but with a moment reduced from the free-ion value. Ordering along the c axis results in the destruction of superconductivity in a sharp transition at the same temperature that a sharp spike appears in the heat capacity. Because Ho and Er have competing orthogonal magnetic anisotropies, pseudoternary compounds near the composition Ho/sub 0.3/Er/sub 0.7/Rh/sub 4/B/sub 4/ are near a multicritical point in the magnetic phase diagram.

• Research Organization: Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37830
• OSTI ID: 5739982
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 25:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
BORON ALLOYS
COHERENT SCATTERING
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALS
DATA
DIAGRAMS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ERBIUM ALLOYS
EXPERIMENTAL DATA
HOLMIUM ALLOYS
INFORMATION
MONOCRYSTALS
NEUTRON DIFFRACTION
NUMERICAL DATA
PHASE DIAGRAMS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
POLYCRYSTALS
POWDERS
RARE EARTH ALLOYS
RHODIUM ALLOYS
SCATTERING
SPACE GROUPS
STRUCTURE FACTORS
SUPERCONDUCTIVITY