Electrical properties of Nd sub 1. 85 Ce sub 0. 15 CuO sub 4 minus y at high temperatures

Journal Article · Tue May 01 00:00:00 EDT 1990 · Journal of Applied Physics; (USA)

DOI:https://doi.org/10.1063/1.344978· OSTI ID:6948144

Munakata, F; Kawano, T; Nozaki, A; Yamauchi, H ^[1]

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1. Superconductivity Research Laboratory, International Superconductivity Technology Center, 10-13 Shinonome 1-Chome, Koto-ku, 135, Tokyo (JP)

The temperature dependence of electrical resistivity of Nd{sub 1.85}Ce{sub 0.15}CuO{sub 4{minus}{ital y}} was measured with oxygen partial pressure fixed at 2.08{times}10{sup {minus}1}, 1.8{times}10{sup {minus}2}, 8.1{times}10{sup {minus}4}, and 3.3{times}10{sup {minus}6} atm. The oxygen partial pressure dependence of resistivity indicated that the charge carriers in Nd{sub 1.85}Ce{sub 0.15}CuO{sub 4{minus}{ital y}} were electrons. The temperature dependence of resistivity exhibited a linear metallic behavior at high temperatures and a semiconductorlike behavior at low temperatures, having a minimum at an intermediate temperature. Difficulties are pointed out in obtaining a unified view for the mechanism of normal electrical conduction in Nd{sub 1.85}Ce{sub 0.15}CuO{sub 4{minus}{ital y}} .

• OSTI ID: 6948144
• Journal Information: Journal of Applied Physics; (USA), Journal Name: Journal of Applied Physics; (USA) Vol. 67:9; ISSN 0021-8979; ISSN JAPIA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHARGE CARRIERS
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRONS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
HIGH TEMPERATURE
LEPTONS
NEODYMIUM COMPOUNDS
NEODYMIUM OXIDES
NONMETALS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARTIAL PRESSURE
PHYSICAL PROPERTIES
RARE EARTH COMPOUNDS
TEMPERATURE DEPENDENCE
TRANSITION ELEMENT COMPOUNDS
VERY HIGH TEMPERATURE