Published August 25, 1980
| Version v1
Journal article
Raman scattering by superconducting-gap excitations and their coupling to charge-density waves
Creators
- 1. Department of Physics and Materials Research Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801
Description
2H-NbSe2 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 2Δ. 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
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 45
- Journal Issue
- 8
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 660-662
- ISSN
- 0031-9007
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 12577414
- Subject category
- S36: MATERIALS SCIENCE; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- CRYSTALS; ENERGY GAP; EXCITATION; MAGNETIC FIELDS; NIOBIUM SELENIDES; PHASE TRANSFORMATIONS; PLASMA WAVES; RAMAN SPECTRA; TYPE-II SUPERCONDUCTORS; ULTRALOW TEMPERATURE; VERY LOW TEMPERATURE
- Descriptors DEC
- CHALCOGENIDES; ENERGY-LEVEL TRANSITIONS; NIOBIUM COMPOUNDS; SELENIDES; SELENIUM COMPOUNDS; SPECTRA; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS