TY - JOUR
T1 - Magnetic anisotropy, tunneling effects, high-frequency EPR, and molecular structure of fast-relaxation species of (formula presented)
AU - Takeda, Keiji
AU - Awaga, Kunio
AU - Inabe, Tamotsu
AU - Yamaguchi, Akira
AU - Ishimoto, Hidehiko
AU - Tomita, Takahiro
AU - Mitamura, Hiroyuki
AU - Goto, Tsuneaki
AU - Môri, Nobuo
AU - Nojiri, Hiroyuki
PY - 2002
Y1 - 2002
N2 - The crystals of a (formula presented) cluster (formula presented) are mosaic, at least from the magnetic point of view, involving two kinds of molecules with different relaxation rates. The ratios of the two components in the crystals are strongly batch dependent. We characterize the two by comparing the magnetic properties of two batches in which the ratios are very different. The angular dependence of the magnetic properties indicates that the magnetic easy axis of the slow relaxation molecule is parallel to the molecular axis, while that of the fast relaxation (FR) molecule is tilted by (formula presented) The high-frequency electron paramagnetic resonance for the FR molecule supports the tilted easy axis and suggests an anisotropy even in its hard plane. The x-ray analyses demonstrate that the FR molecule involves a (formula presented) site with an unusual distortion.
AB - The crystals of a (formula presented) cluster (formula presented) are mosaic, at least from the magnetic point of view, involving two kinds of molecules with different relaxation rates. The ratios of the two components in the crystals are strongly batch dependent. We characterize the two by comparing the magnetic properties of two batches in which the ratios are very different. The angular dependence of the magnetic properties indicates that the magnetic easy axis of the slow relaxation molecule is parallel to the molecular axis, while that of the fast relaxation (FR) molecule is tilted by (formula presented) The high-frequency electron paramagnetic resonance for the FR molecule supports the tilted easy axis and suggests an anisotropy even in its hard plane. The x-ray analyses demonstrate that the FR molecule involves a (formula presented) site with an unusual distortion.
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U2 - 10.1103/PhysRevB.65.094424
DO - 10.1103/PhysRevB.65.094424
M3 - Article
AN - SCOPUS:85038291947
SN - 1098-0121
VL - 65
SP - 1
EP - 12
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 9
ER -