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Paramagnetic resonance and susceptibility of ilmenite, FeTiO3 crystalLarge high-purity single crystals of FeTiO3 with ilmenite structure have been grown from a stoichiometric melt of Fe2O3 and TiO2 under an inert atmosphere using the modified Czochralski technique. Susceptibility and X-band paramagnetic resonance studies have been performed. Susceptibility measurements indicate a Neel temperature of about 59 K. The paramagnetic resonance spectrum for magnetic field perpendicular to the crystal c axis consists of a portion of a single, very intense approximately Lorentzian absorption line with its peak at about 600 G and half width at half maximum almost 1200 G. The absorption extends to zero magnetic field. For magnetic field approximately parallel to the c axis, the paramagnetic absorption is much smaller and may be considered a superposition of two approximately Lorentzian line shapes. The magnetic resonance measurements indicate a weak temperature dependence and large angular anisotropy.
Document ID
19910038049
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Mcdonald, P. F.
(Sam Houston State Univ. Huntsville, TX, United States)
Parasiris, A.
(Sam Houston State University Huntsville, TX, United States)
Pandey, R. K.
(Sam Houston State Univ. Huntsville, TX, United States)
Gries, B. L.
(Sam Houston State Univ. Huntsville, TX, United States)
Kirk, W. P.
(Texas A & M University College Station, United States)
Date Acquired
August 15, 2013
Publication Date
January 15, 1991
Publication Information
Publication: Journal of Applied Physics
Volume: 69
ISSN: 0021-8979
Subject Category
Solid-State Physics
Accession Number
91A22672
Funding Number(s)
CONTRACT_GRANT: NAG9-150
Distribution Limits
Public
Copyright
Other

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