NEUTRON THERMOMETRY APPLIED TO MAGNETIZATION AND SPIN-LATTICE RELAXATION MEASUREMENTS ON SILVER NUCLEI

Authors
TUORINIEMI JT NUMMILA KK LEFMANN K VUORINEN RT METZ A
Citation
Jt. Tuoriniemi et al., NEUTRON THERMOMETRY APPLIED TO MAGNETIZATION AND SPIN-LATTICE RELAXATION MEASUREMENTS ON SILVER NUCLEI, Zeitschrift fur Physik. B, Condensed matter, 102(4), 1997, pp. 433-438
Citations number
20
Categorie Soggetti
Physics, Condensed Matter
Journal title
Zeitschrift fur Physik. B, Condensed matter → ACNP
ISSN journal
07223277
Volume
102
Issue
4
Year of publication
1997
Pages
433 - 438
Database
ISI
SICI code
0722-3277(1997)102:4<433:NTATMA>2.0.ZU;2-K
Abstract
We have studied spin-lattice relaxation in silver metal at temperature s and magnetic fields beyond the validity of the normal Korringa relat ion tau(1) = kappa/T-e using transmission of polarized and unpolarized neutrons. For the Korringa constant of Ag-109 we obtained kappa = (10 .0+/-0.3) sK. Unpolarized neutrons were also used to measure the criti cal value of antropy S for nuclear antiferromagnetic ordering and to d etermine the induced magnetization M in the ordered state. The nuclear susceptibility chi = mu(0)M/B = 0.36+/-0.01 was found to be constant, independent of S and B (B-c approximate to 100 mu T).