Počet záznamů: 1  

Spontaneous and field-induced phase transitions in TbFe.sub.5./sub.Al.sub.7./sub..

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    0432287 - FZÚ 2015 RIV NL eng J - Článek v odborném periodiku
    Gorbunov, Denis - Yasin, S. - Andreev, Alexander V. - Mushnikov, N. V. - Skourski, Y. - Zherlitsyn, S. - Wosnitza, J.
    Spontaneous and field-induced phase transitions in TbFe5Al7.
    Journal of Magnetism and Magnetic Materials. Roč. 535, Sep (2014), 56-63. ISSN 0304-8853. E-ISSN 1873-4766
    Grant CEP: GA ČR GAP204/12/0150
    Grant ostatní: AVČR(CZ) M100101203
    Institucionální podpora: RVO:68378271
    Klíčová slova: rare-earth intermetallics * ferrimagnetism * magnetic anisotropy * spin-reorientation transition * high magnetic fields * field-induced transition
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 1.970, rok: 2014

    Magnetization and ultrasound measurements have been performed on TbFe5Al7 single crystal (tetragonal crystal structure) at 2-260 K in steady (up to 18 T) and in pulsed magnetic fields (up to 60 T). The compound is a ferrimagnet below 242 K having an easy-plane anisotropy. Strong anisotropy is also present within the basal plane. At 2 K, the easy magnetization direction is the [100] axis. In the vicinity of the compensation temperature, Tcomp = 84 K, TbFe5Al7 displays a spin-reorientation transition from [100] to the [110] axis accompanied by pronounced anomalies in the relative sound-velocity change and sound attenuation. Field-induced magnetic transitions have been observed by magnetization and acoustic measurements. The Tb-Fe inter-sublattice exchange constant has been determined directly from the high-field data and using molecular-field theory.
    Trvalý link: http://hdl.handle.net/11104/0236703

     
     
Počet záznamů: 1  

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