Low-temperature heat capacity of Pd sub 0. 35 Zr sub 0. 65 D sub x ( x =0. 00--0. 80) metallic glasses

Journal Article · Tue May 15 00:00:00 EDT 1990 · Physical Review, B: Condensed Matter; (USA)

DOI:https://doi.org/10.1103/PhysRevB.41.10852· OSTI ID:6820909

Kai, K ^[1]; Suzuki, K ^[2]; Gschneidner, Jr, K A ^[3]

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1. Ames Laboratory, Iowa State University, Ames, Iowa 50011 (USA) Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Sendai, Miyagi 980 (Japan)
2. Institute for Materials Research, Tohoku University, 2-1-1 Katahira Sendai, Miyagi 980 (Japan)
3. Ames Laboratory, Iowa State University, Ames, IA (USA)

Electronic properties of amorphous deuterated alloys prepared from glassy Pd{sub 0.35}Zr{sub 0.65} were studied by means of low-temperature heat-capacity measurements. Although the bare electronic density of states {ital N}{sub {ital b}}({ital E}{sub {ital F}}) decreases steadily with increasing deuterium concentration, the superconducting transition temperature {ital T}{sub {ital c}} is constant for (D)/({ital M}) higher than 0.5, in turn, according to McMillan analysis, the electron-phonon interaction parameter {lambda} is constant. These results support the structural model that the deuterium atoms predominantly occupy the tetrahedral sites associated with Zr-rich atoms. But there is evidence of different sites occupancies, presumably octahedral sites, for higher deuterium concentrations, as indicated from neutron total scattering measurements.

• DOE Contract Number: W-7405-ENG-82
• OSTI ID: 6820909
• Journal Information: Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 41:15; ISSN 0163-1829; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
CALORIMETRY
CHEMICAL REACTIONS
DEUTERATION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
ELECTRONIC SPECIFIC HEAT
ENERGY-LEVEL DENSITY
METALLIC GLASSES
PALLADIUM ALLOYS
PHYSICAL PROPERTIES
PLATINUM METAL ALLOYS
SPECIFIC HEAT
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE
ZIRCONIUM ALLOYS