Nonlinear temperature dependence of the normal-state resistivity in YBa/sub 2/Cu/sub 4/O/sub 8//sub +- //sub delta/ films

Journal Article · Mon May 01 04:00:00 EDT 1989 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.39.9611· OSTI ID:6292837

Martin, S; Gurvitch, M; Rice, C E; Hebard, A F; Gammel, P L; Fleming, R M; Fiory, A T

The ab-plane resistivity of YBa/sub 2/Cu/sub 4/O/sub 8//sub +- //sub delta/ (1:2:4) films is measured from 68 to 600 K and found to be a nonlinear function of temperature in contrast to that of YBa/sub 2/Cu/sub 3/O/sub 7-//sub delta/ (1:2:3) films. The nonlinearity can be understood in terms of a Bloch-Grueneisen-type behavior with a transport Debye temperature of theta/sub D//sup */approx. =500 K, as compared to theta/sub D//sup */approx. =200 K for 1:2:3. This difference is attributed to the larger number of charge carriers per unit cell in 1:2:4.

• Research Organization: ATandT Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 6292837
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 39:13; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CARRIER DENSITY
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FILMS
HIGH TEMPERATURE
LOW TEMPERATURE
MEDIUM TEMPERATURE
NONLINEAR PROBLEMS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
TEMPERATURE DEPENDENCE
THIN FILMS
TRANSITION ELEMENT COMPOUNDS
YTTRIUM COMPOUNDS
YTTRIUM OXIDES