TY - JOUR
T1 - Anomalous spin-lattice relaxation in dilute RhFe at positive and negative nanokelvin temperatures
AU - Hakonen, P. J.
AU - Vuorinen, R. T.
AU - Martikainen, J. E.
PY - 1994/2/2
Y1 - 1994/2/2
N2 - We report investigations at ultra low positive and negative spin temperatures on the spin-lattice relaxation in a rhodium sample with 6 ppm of iron impurities. A strong decrease in the Korringa constant κ, dependent on the inverse of nuclear spin temperature 1 T, was observed in fields below 1 mT; at B=0, the κ was almost two times smaller at T=0.8 nK than at -0.8 nK. These results indicate strong modification of magnetic impurity scattering by the large nuclear susceptibility of the host material.
AB - We report investigations at ultra low positive and negative spin temperatures on the spin-lattice relaxation in a rhodium sample with 6 ppm of iron impurities. A strong decrease in the Korringa constant κ, dependent on the inverse of nuclear spin temperature 1 T, was observed in fields below 1 mT; at B=0, the κ was almost two times smaller at T=0.8 nK than at -0.8 nK. These results indicate strong modification of magnetic impurity scattering by the large nuclear susceptibility of the host material.
KW - magnetic impurities
KW - negative temperatures
KW - spin-lattice relaxation
KW - magnetic impurities
KW - negative temperatures
KW - spin-lattice relaxation
KW - magnetic impurities
KW - negative temperatures
KW - spin-lattice relaxation
UR - http://www.scopus.com/inward/record.url?scp=43949152080&partnerID=8YFLogxK
U2 - 10.1016/0921-4526(94)90500-2
DO - 10.1016/0921-4526(94)90500-2
M3 - Article
AN - SCOPUS:43949152080
SN - 0921-4526
VL - 194-196
SP - 341
EP - 342
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - PART 1
ER -