ENERGY GAP AND CRITICAL FIELD OF SUPERCONDUCTING MOLYBDENUM OBTAINED BY ULTRASONIC MEASUREMENTS

Journal Article · Mon Oct 01 04:00:00 EDT 1962 · Phys. Rev. Letters

DOI:https://doi.org/10.1103/PhysRevLett.9.313· OSTI ID:4749382

Horwitz, N H; Bohm, H V

A molybdenum single crystal prepared by electron-beam zone refining was examined using ultrasonic measurements. Longitudinal pulses of 239-Mc/sec were propagated along the STA100! crystallographic direction at temperatures from 1.1 to 0.5 deg K to obtain energy gap and critical field data. The critical field at absolute zero was determined as 114 plus or minus 5 oersteds. Measurements of the ultrasonic attenuation as a function of temperature give 3.5 plus or minus 0.2 kT/sub c/ units for the energy gap at absolute zero. Critical field measurements on a pure zinc single crystal yielded a value of 55 plus or minus 3 oersteds. (H.D.R.)

• Research Organization: Wayne State Univ., Detroit
• NSA Number: NSA-17-006877
• OSTI ID: 4749382
• Journal Information: Phys. Rev. Letters, Journal Name: Phys. Rev. Letters Vol. Vol: 9
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ELECTRON BEAMS
ENERGY
FREQUENCY
LOW TEMPERATURE
MAGNETIC FIELDS
MEASURED VALUES
MOLYBDENUM
MONOCRYSTALS
PHYSICS
PREPARATION
PULSES
SUPERCONDUCTIVITY
ULTRASONICS
ZINC
ZONES