Abstract
The nuclear-resonance photon-scattering cross section σs from 50Cr in a metallic form was studied as a function of temperature in the range 15-300 K. The value of σs was used for deducing the effective temperature Te which is related to a weighted average of the phonon spectrum of metallic Cr. This Te is also a measure of the total zero-point kinetic energy of the lattice and was used to define another Debye temperature FTHETA0; its value for metallic Cr was measured and found to be FTHETA0=510±20 K. This value is higher by about 10% than that obtained from the known phonon spectrum deduced by inelastic neutron scattering. A similar deviation occurs in other elements. The reason for this deviation of the values of Te and hence of FTHETA0 obtained by the nuclear-resonance photon-scattering technique and by inelastic neutron scattering is discussed.
Original language | English |
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Pages (from-to) | 386-389 |
Number of pages | 4 |
Journal | Physical Review B |
Volume | 44 |
Issue number | 1 |
DOIs | |
State | Published - 1 Jan 1991 |
ASJC Scopus subject areas
- Condensed Matter Physics