Published February 1998
| Version v1
Journal article
Observation of Photoemission Line Widths Narrower than the Inverse Lifetime
Creators
- 1. Frederick Seitz Materials Research Laboratory, University of Illinois at Urbana-Champaign, 104 South Goodwin Avenue, Urbana, Illinois 61801-2902 (United States)
- 2. Department of Physics, University of Illinois at Urbana-Champaign, 1110 West Green Street, Urbana, Illinois 61801-3080 (United States)
Description
Quantum mechanics stipulates that experimental spectral lines cannot be narrower than the inverse lifetime. However, this limitation can be overcome in angle-resolved photoemission, and we have observed unusually narrow photoemission peaks derived from a bulk valence band of Ag. This observation is made possible by judiciously choosing a grazing emission geometry to reach a specific zone in the reciprocal space, where the final-state lifetime effect is suppressed, and simultaneously the initial-state lifetime contribution is kinematically compressed. copyright 1998 The American Physical Society
Additional details
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 80
- Journal Issue
- 8
- Journal Page Range
- p. 1766-1769.
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 29036908
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- CARRIER LIFETIME; ELECTRONIC STRUCTURE; LINE NARROWING; LINE WIDTHS; PHOTOEMISSION; SILVER
- Descriptors DEC
- ELEMENTS; EMISSION; LIFETIME; METALS; SECONDARY EMISSION; TRANSITION ELEMENTS