beta-NMR of isolated lithium in nearly ferromagnetic palladium.
The temperature dependence of the frequency shift and spin-lattice relaxation rate of isolated, nonmagnetic (8)Li impurities implanted in a nearly ferromagnetic host (Pd) are measured by means of beta-detected nuclear magnetic resonance (beta-NMR). The shift is negative, very large, and increases monotonically with decreasing T in proportion to the bulk susceptibility of Pd for T > T* approximately 100 K. Below T*, an additional shift occurs which we attribute to the response of Pd to the defect. The relaxation rate is much slower than expected for the large shift and is linear with T below T*, showing no sign of additional relaxation mechanisms associated with the defect.
Parolin
T J
TJ
Department of Chemistry, University of British Columbia, Vancouver, BC, V6T 1Z1, Canada.
Salman
Z
Z
Chakhalian
J
J
Song
Q
Q
Chow
K H
KH
Hossain
M D
MD
Keeler
T A
TA
Kiefl
R F
RF
Kreitzman
S R
SR
Levy
C D P
CD
Miller
R I
RI
Morris
G D
GD
Pearson
M R
MR
Saadaoui
H
H
Wang
D
D
MacFarlane
W A
WA