Magnetic properties of Pb2Fe2Ge2O9 single crystals |
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| Authors: | G.?A.?Petrakovski? M.?A.?Popov A.?D.?Balaev K.?A.?Sablina O.?A.?Bayukov D.?A.?Velikanov A.?M.?Vorotynov A.?F.?Bovina A.?D.?Vasil’ev M.?Boehm |
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| Affiliation: | 1.Kirensky Institute of Physics, Siberian Branch,Russian Academy of Sciences,Akademgorodok, Krasnoyarsk,Russia;2.Siberian Federal University,Krasnoyarsk,Russia;3.Institut Laue-Langevin,Grenoble Cedex 9,France |
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| Abstract: | Single crystals of Pb2Fe2Ge2O9 have been grown. They were subjected to X-ray diffraction, magnetic, neutron diffraction, Mössbauer and spin resonance studies. It has been established that Pb2Fe2Ge2O9 is a weak ferromagnet with a Néel temperature T N = 46 K, and the exchange and spin-flop transition fields have been estimated. It has been demonstrated that the weak ferromagnetic moment is actually the result of the single-ion anisotropy axes for the magnetic moments of different magnetic sublattices being not collinear. |
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