Ultrasound study of FeCr2S4 in high magnetic fields.
作者： V Felea , S Yasin , A Günther , J Deisenhofer , H-A Krug von Nidda
DOI: 10.1088/0953-8984/26/48/486001
关键词: Magnetic field 、 Phase (waves) 、 Condensed matter physics 、 Chemistry 、 Magnetocrystalline anisotropy 、 Paramagnetism 、 Ultrasound study 、 Phase space 、 Ultrasound
摘要: We report on ultrasound studies of FeCr2S4 in static and pulsed magnetic fields exhibiting an orbital-order transition at 9 K. A longitudinal acoustic mode exhibits distinct features the phase space temperature field due to structural transformations. Pulsed-field measurements show significant differences sound velocity below above orbital-ordering as well spin-reorientation 60 Our results indicate a reduction magnetocrystalline anisotropy entering orbitally ordered phase.
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