Theory of magnetoconductivity induced by superconducting fluctuations in anisotropic bulk and fibrous samples

Journal Article · Sun Jul 01 04:00:00 EDT 1979 · Phys. Rev., B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.20.147· OSTI ID:6104955

da Silva, E Z; Gyorffy, B L

We present a calculation of the fluctuation-induced magnetoconductivity sigma/sup f/(T,H,theta) for an anisotropic bulk and an anisotropic single fiber superconductor in the dirty limit. The purpose of the exercise is to show that, by measuring the variation of sigma/sup f/(T,H,theta) with angle theta and field H, one can easily differentiate between an anisotropic bulk sample and one with fibrous morphology. To illustrate our point we analyze the available experimental data on (SN)/sub x/. Our analysis favors a model according to which this metal consists of thin (approx. 150 A) anisotropic fibers.

• Research Organization: Brookhaven National Laboratory, Upton, New York 11973
• OSTI ID: 6104955
• Journal Information: Phys. Rev., B: Condens. Matter; (United States), Journal Name: Phys. Rev., B: Condens. Matter; (United States) Vol. 20:1; ISSN PRBMD
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
FLUCTUATIONS
MAGNETORESISTANCE
NITRIDES
NITROGEN COMPOUNDS
PHYSICAL PROPERTIES
PNICTIDES
SULFUR COMPOUNDS
SULFUR NITRIDES
SUPERCONDUCTIVITY
SUPERCONDUCTORS
VARIATIONS