Thermally activated dissipation in Bi/sub 2. 2/Sr/sub 2/Ca/sub 0. 8/Cu/sub 2/O/sub 8+//sub delta/

Journal Article · Mon Oct 03 04:00:00 EDT 1988 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.61.1662· OSTI ID:7090424

Palstra, T T.M.; Batlogg, B; Schneemeyer, L F; Waszczak, J V

A new dissipation behavior is reported in superconducting Bi/sub 2.2/Sr/sub 2/Ca/sub 0.8/Cu/sub 2/O/sub 8+//sub delta/ for all temperatures below T/sub c/ and all magnetic fields exceeding H/sub c//sub 1/. The current-independent electrical resistivity is thermally activated and can be described by an Arrhenius law with a single prefactor and a magnetic-field- and orientation-dependent activation energy U/sub 0/(H,phi). This behavior is markedly different from past observations and will be discussed in terms of flux creep and flux flow. This thermally activated behavior implies a finite resistance at all temperatures and all fields exceeding H/sub c//sub 1/ determined by the activation energy as the only parameter.

• Research Organization: ATandT Bell Laboratories, Murray Hill, New Jersey 07974
• OSTI ID: 7090424
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 61:14; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360204* -- Ceramics
Cermets
& Refractories-- Physical Properties
ALKALINE EARTH METAL COMPOUNDS
ARRHENIUS EQUATION
BISMUTH COMPOUNDS
CALCIUM COMPOUNDS
CHALCOGENIDES
COPPER COMPOUNDS
COPPER OXIDES
CURRENTS
ELECTRIC CURRENTS
ENERGY LOSSES
EQUATIONS
LOSSES
MAGNETIC FIELDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
STRONTIUM COMPOUNDS
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE