Low-temperature magnetic transitions in TmNi4B compound

Two magnetic transitions in TmNi4B are confirmed by the measurements of magnetic properties and electrical resistivity. These transitions are determined at temperatures TC1, = 4.6 K and TC2, = 3.3 K from the well-defined peaks both in the real *y' and the imaginary *y" part of the AC susce...

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Bibliographic Details
Published in:Journal of magnetism and magnetic materials 2003-12, Vol.267 (3), p.402-405
Main Authors: TOLINSKI, T, ANDRZEJEWSKI, B, KOWALCZYK, A, TRYBULA, Z, BASZYNSKI, J
Format: Article
Language:English
Subjects:
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Exact sciences and technology
Magnetic phase boundaries (including magnetic transitions, metamagnetism, etc.)
Magnetic properties and materials
Magnetically ordered materials: other intrinsic properties
Physics
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Summary:Two magnetic transitions in TmNi4B are confirmed by the measurements of magnetic properties and electrical resistivity. These transitions are determined at temperatures TC1, = 4.6 K and TC2, = 3.3 K from the well-defined peaks both in the real *y' and the imaginary *y" part of the AC susceptibility measurements at 1 kHz in the temperature range down to 1.5 K. The temperature dependence of electrical resistivity also exhibits anomalies at temperatures TC1and TC2. We ascribe this behavior to transition between two ferromagnetic phases. In the DC measurements of the temperature dependence of magnetization an irreversibility between zero-field cooling and field cooling curves is observed. The resistivity curve in the paramagnetic region exhibits typical contribution of spin fluctuations and phonons excitations.
ISSN:0304-8853
DOI:10.1016/S0304-8853(03)00409-8