NDLI: Structural, magnetic and mossbauer studies of the molecular ferromagnet compounds NBu/sub 4/[C/sub 2/O/sub 4/)/sub 3/] (Bu = (CH/sub 2/)/sub 3/CH/sub 3, M = Mn, Fe)

Content Provider	IEEE Xplore Digital Library
Author	Atovmyan, L.O. Shilov, G.V. Ovanesvan, N.S. Pyalling, A.A. Lyubovskaya, R.N. Zhilyaeva, E.I. Morozov, Yu.G.
Copyright Year	1994
Description	Author affiliation: Institute of Chemical Physics (Atovmyan, L.O.)
Abstract	Summary form only given. Room temperature X-ray single crystal study of the Mn member of the recently discovered molecular-based ferromagnet compound series NBu/sub 4/ [MCr (C/sub 2/O/sub 4//sub 3/], (M = Mn, Fe, Ni, Co, Cu) [1] has revealted a hexagonal structure, space group R3c, 1=2=9,414 (5)A, c=53.662(6) A, built from oxalate-bridged metals ions layers separated by NBU/sub 4/+ layers. It is suggested that the anisotropic interaction of butyl groups with neighboring atoms of the metal oxalate network results in ordered arrangement of metallic cations which in turn ensures both in- and interlayer ferromagnetic interactions. Single crystal dc magnetization studies at 4.5 K have shown the easy magnetization direction to be along the crystal c-axis. On the other hand, from Mossbauer studies of M=Fe composition the magnetic axis is confined to the c-plane with strong out-of-plane anisotropy. Anomalous temperature behavior of Fe2+ ions mean square displacement along the c-axis is related to the orientational disorder of butyl groups above ca. 200 K.
Starting Page	490
Ending Page	490
File Size	94411
Page Count	1
File Format	PDF
DOI	10.1109/STSM.1994.835698
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-24
Publisher Place	Korea
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Temperature Anisotropic magnetoresistance Magnetic separation Magnetization Magnetic confinement Magnetic anisotropy Iron Perpendicular magnetic anisotropy Chemical compounds Physics
Content Type	Text
Resource Type	Article

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