Crystal field effects in magnetic superconducting Er/sub 1-x/Tm/sub x/Rh/sub 4/B/sub 4/ and Er/sub 1-x/Ho/sub x/Rh/sub 4/B/sub 4/

Journal Article · Tue Jul 01 04:00:00 EDT 1980 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.22.164· OSTI ID:5185423

Maekawa, S; Smith, J L; Huang, C Y

The magnetic and superconducting transitions have been measured in Er/sub 1-x/Tm/sub x/Rh/sub 4/B/sub 4/ and crystal-field theory has been used to explain these transitions and those in Er/sub 1-x/Ho/sub x/Rh/sub 4/B/sub 4/. The minimum observed in the magnetic transition temperature versus x curve in Er/sub 1-x/Ho/sub x/Rh/sub 4/B/sub 4/ has been identified as the first example of a ''decoupled'' ferromagnetic tetracritical point. The theoretical phase diagrams are in reasonable agreement with the data and hence lead to further understanding of the details. The absence of the specific-heat shoulders above the superconducting-to-ferromagnetic transitions in these pseudoternaries is discussed.

• Research Organization: Research Institute for Iron, Steel, and Other Metals, Tohoku University, Sendai 980, Japan
• OSTI ID: 5185423
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 22:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

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75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BORIDES
BORON COMPOUNDS
CRYSTAL FIELD
CURIE POINT
DIAGRAMS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
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HOLMIUM BORIDES
HOLMIUM COMPOUNDS
PHASE DIAGRAMS
PHYSICAL PROPERTIES
QUANTITY RATIO
RARE EARTH COMPOUNDS
RHODIUM BORIDES
RHODIUM COMPOUNDS
SPECIFIC HEAT
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
THULIUM BORIDES
THULIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE