TY - JOUR
T1 - Superparamagnetism in Heterogeneous AgFe Thin Films - A Low Energy μSR Study
AU - Jackson, Timothy
AU - Forgan, Edward
AU - Riseman, Tanya
AU - Gluckler, H
AU - Morenzoni, E
AU - Prokscha, T
AU - Weber, HP
AU - Neidermayer, CH
PY - 2001/1/1
Y1 - 2001/1/1
N2 - This paper describes a study of superparamagnetism in iron nanoclusters using low energy muSR, including for the first time zero field measurements, which yield an intrinsic nanocluster superparamagnetic relaxation rate of nu(0) = 67 +/- 15 MHz and an energy barrier of DeltaE = 37 +/- 4 K. TEM micrographs of the embedded clusters show there to be a range of shapes and also sizes, which is bourne out by SQUID magnetometry measurements.
AB - This paper describes a study of superparamagnetism in iron nanoclusters using low energy muSR, including for the first time zero field measurements, which yield an intrinsic nanocluster superparamagnetic relaxation rate of nu(0) = 67 +/- 15 MHz and an energy barrier of DeltaE = 37 +/- 4 K. TEM micrographs of the embedded clusters show there to be a range of shapes and also sizes, which is bourne out by SQUID magnetometry measurements.
U2 - 10.1023/A:1020529531039
DO - 10.1023/A:1020529531039
M3 - Article
VL - 136
SP - 403
EP - 408
JO - Hyperfine Interactions
JF - Hyperfine Interactions
ER -