Magnetic properties of incommensurate antiferromagnet β-KMnCl3 |
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Authors: | N.V. Fedoseeva T.A. Velikanova A.D. Balaev |
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Affiliation: | L.V. Kirenskii Institute of Physics, Krasnoyarsk, 660036, USSR |
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Abstract: | Magnetic properties of orthorhombic incommensurate antiferromagnet β-KMnCl3 have been studied as a function of temperature down to 0,5K and in magnetic fields up to 70 k0e. The exchange parameters were estimated with molecular-field theory. Magnetic field behaviour of β-KMnCl3 is in accordance with change of magnetic structure from helical into fan structure and then into induced ferromagnetic state. The Neel temperature decreases with increase magnetic field overage 0,05K on 1 k0e. |
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