ENERGY GAP IN SUPERCONDUCTORS CONTAINING PARAMAGNETIC IMPURITIES

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

DOI:https://doi.org/10.1103/PhysRevLett.9.315· OSTI ID:4761046

Reif, F; Woolf, M A

Experiments were performed on quenched alloy films evaporated onto substrates maintained at 4 deg K to investigate the energy gap and density of states of semiconductors containing paramagnetic impurities. Preliminary results are presented from an investigation by tunneling techniques. For paramagnetic impurity concentrations greater than a relatively small value, the superconductor no longer exhibits an energy gip in its tunneling characteristics, although resistance measurements show that it has a welldefined transition temperature in accord with the expected concentration dependence. (H.D.R.)

• Research Organization: Univ. of California, Berkeley
• NSA Number: NSA-17-006878
• OSTI ID: 4761046
• 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

ALLOYS
DENSITY
ENERGY
EVAPORATION
FILMS
IMPURITIES
LOW TEMPERATURE
MAGNETISM
MEASURED VALUES
PARAMAGNETISM
PHYSICS
QUANTITY RATIO
RESISTORS
SEMICONDUCTORS
SUPERCONDUCTIVITY
TEMPERATURE
TRANSIENTS
TRANSITION TEMPERATURE
ZONES