THE NEUTRINO INDUCED DOPPLER BROADENING TECHNIQUE AND ITS APPLICATIONTO THE STUDY OF PHONON CREATION IN SOLIDS

Authors
JOLIE J STRITT N BORNER HG DOLL C JENTSCHEL M ROBINSON SJ KESSLER EG
Citation
J. Jolie et al., THE NEUTRINO INDUCED DOPPLER BROADENING TECHNIQUE AND ITS APPLICATIONTO THE STUDY OF PHONON CREATION IN SOLIDS, Zeitschrift fur Physik. B, Condensed matter, 102(1), 1997, pp. 1-7
Citations number
18
Categorie Soggetti
Physics, Condensed Matter
Journal title
Zeitschrift fur Physik. B, Condensed matter → ACNP
ISSN journal
07223277
Volume
102
Issue
1
Year of publication
1997
Pages
1 - 7
Database
ISI
SICI code
0722-3277(1997)102:1<1:TNIDBT>2.0.ZU;2-7
Abstract
Phonons in solids are studied experimentally by observing the motion o f an atom which is at the origin of a lattice vibration. The atom is g iven an excess kinetic energy of 3 eV via the emission of an electron neutrino in a nuclear reaction. Its motion is observed by measuring th e Doppler shift of subsequently emitted gamma-rays using ultra-high re solving power spectroscopy. In this way the motion of the atom during the first hundred of femtoseconds can be investigated. The results of the experiment are analysed using the Debye approximation and compared to a Molecular Dynamics simulation.