Volume 128, Number 2, October 2019
|Number of page(s)||4|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||23 December 2019|
On the magnetism of C14 Nb(Fe89.4Al10.6)2 Laves phase intermetallic compound
1 AGH University of Science and Technology, Faculty of Physics and Applied Computer Science al. A. Mickiewicza 30, 30-059 Kraków, Poland
2 Racah Institute of Physics, The Hebrew University - Jerusalem, Israel 91904
Received: 31 July 2019
Accepted: 19 November 2019
The C14 Nb(Fe89.4Al10.6)2 Laves phase intermetallic compound was investigated by DC magnetization (M) measurements performed in the temperature (T) interval from 20 to , under an applied magnetic field (H) ranging between 50 and . Magnetization curves were recorded in the field-cooled (FC) and in the zero-field-cooled (ZFC) modes. They clearly showed an irreversible character that vanished at . Both magnetization curves exhibited well-defined peaks around whose positions were H-independent, so they were identified as the compound's Néel temperature. The existence of the irreversibility whose degree decreases with H testifies to a re-entrant character of magnetism in the studied compound. An increase of both and observed below TN likely indicates a mixed, i.e., ferromagnetic and antiferromagnetic ground magnetic state of the studied system.
PACS: 75.30.Kz – Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.) / 75.50.Ee – Antiferromagnetics / 75.50.Bb – Fe and its alloys
© EPLA, 2019
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