Raman scattering by superconducting-gap excitations and their coupling to charge-density waves
Journal Article
·
· Phys. Rev. Lett.; (United States)
2H-NbSe/sub 2/ undergoes a charge-density--wave (CDW) distortion at 33 K which induces A and E Raman-active phonon modes. These are joined in the superconducting state at 2 K by new A and E Raman modes close in energy to the BCS gap 2..delta... Magnetic fields suppress the intensity of the new modes and enhance that of the CDW-induced modes, thus providing evidence of coupling between the superconducting-gap excitations and the CDW.
- Research Organization:
- Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
- OSTI ID:
- 5131439
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 45:8; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Thesis/Dissertation
·
Mon Dec 31 23:00:00 EST 1979
·
OSTI ID:5585142
Raman scattering from superconducting gap excitations in the presence of a magnetic field
Journal Article
·
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·
OSTI ID:5558483
Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CRYSTALS
ENERGY GAP
ENERGY-LEVEL TRANSITIONS
EXCITATION
MAGNETIC FIELDS
NIOBIUM COMPOUNDS
NIOBIUM SELENIDES
PHASE TRANSFORMATIONS
PLASMA WAVES
RAMAN SPECTRA
SELENIDES
SELENIUM COMPOUNDS
SPECTRA
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TYPE-II SUPERCONDUCTORS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
CRYSTALS
ENERGY GAP
ENERGY-LEVEL TRANSITIONS
EXCITATION
MAGNETIC FIELDS
NIOBIUM COMPOUNDS
NIOBIUM SELENIDES
PHASE TRANSFORMATIONS
PLASMA WAVES
RAMAN SPECTRA
SELENIDES
SELENIUM COMPOUNDS
SPECTRA
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS
TYPE-II SUPERCONDUCTORS
ULTRALOW TEMPERATURE
VERY LOW TEMPERATURE