Nuclear spin relaxation in Au/sup 51/V: spin dynamics of a Kondo alloy

Conference · Sat Jan 01 00:00:00 EST 1977

OSTI ID:5400742

Narath, A; Follstaedt, D

The temperature dependent spin dynamics of vanadium impurities in the Kondo alloy AuV (theta/sub K/ approximately equal to 300K) have been studied by means of measurements of /sup 51/V transverse relaxation rates (T/sub 2//sup -1/) for the temperature range 1 to 260 K and vanadium concentrations of 0.2 and 0.5 at.%. Contrary to published reports, we find the quantity T/sub 2/T to increase markedly with increasing temperature. Its magnitude at 260 K (15(+-5) msec-K) exceeds the limiting low-temperature value by a factor of 10. The observed increase in T/sub 2/T indicates a large reduction in the impurity spin-correlation time, e.g., tau/sub e/(theta/sub K/)/tau/sub e/(0) approximately equal to 0.2.

• Research Organization: Sandia Labs., Albuquerque, N.Mex. (USA)
• DOE Contract Number: EY-76-C-04-0789
• OSTI ID: 5400742
• Report Number(s): SAND-77-1803C; CONF-771127-3; TRN: 78-002692
• Resource Relation: Conference: 23. conference on magnetism and magnetic materials, Minneapolis, MN, USA, 8 Nov 1977
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
GOLD ALLOYS
KONDO EFFECT
VANADIUM 51
NUCLEAR MAGNETIC RESONANCE
VANADIUM ALLOYS
HYPERFINE STRUCTURE
LOW TEMPERATURE
MEDIUM TEMPERATURE
ALLOYS
INTERMEDIATE MASS NUCLEI
ISOTOPES
MAGNETIC RESONANCE
NUCLEI
ODD-EVEN NUCLEI
RESONANCE
STABLE ISOTOPES
VANADIUM ISOTOPES
360102* - Metals & Alloys- Structure & Phase Studies