Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7870723 | Materials Science and Engineering: C | 2007 | 4 Pages |
Abstract
Static magnetic susceptibility and ESR spectra of layered semiconducting InSe crystals containing Mn were investigated. Solid solution In1âXMnXSe is responsible for ferromagnetism at Curie temperature TC > 270 K. Single wide line ESR spectrum was observed. It practically disappeared at 90 K. Paramagnetic constant background of magnetic susceptibility originates from atypical Van-Vleck Mn3+ (d4) ions, which are in a state of nonmagnetic singlet in crystal field, and magnetization of crystals in ferromagnetic state. Very narrow (2 Oe) line with g = 1.999 appears at temperatures lower than 23 K which is apparently due to the electrons localized on the levels of space quantization. Two maxima at â¼Â 160 K and â¼Â 260 K are observed as the temperature dependence of magnetic susceptibility. They are obliged to inclusions of antiferromagnetic MnSe. At high magnetic fields of 6 and 50 kOe, the first peak widens and disappears.
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Authors
G.V. Lashkarev, V.V. Slynko, Z.D. Kovalyuk, V.I. Sichkovskyi, M.V. Radchenko, P. Aleshkevych, R. Szymczak, W. Dobrowolski, R. Minikaev, A.V. Zaslonkin,