Magnetic properties of EuCuAs single crystal

•The single crystal of EuCuAs has been grown.•An antiferromagnetic transition is observed at the temperature of 14K.•A metamagnetic transition is observed when H//ab.•The magnetic phase diagrams are established. Single crystalline EuCuAs with a hexagonal structure was grown and the magnetic properti...

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Veröffentlicht in:Journal of alloys and compounds 2014-07, Vol.602, p.26-31
Hauptverfasser: Tong, Jun, Parry, Jim, Tao, Qian, Cao, Guang-Han, Xu, Zhu-An, Zeng, Hao
Format: Artikel
Sprache:eng
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Zusammenfassung:•The single crystal of EuCuAs has been grown.•An antiferromagnetic transition is observed at the temperature of 14K.•A metamagnetic transition is observed when H//ab.•The magnetic phase diagrams are established. Single crystalline EuCuAs with a hexagonal structure was grown and the magnetic properties were studied by measuring the magnetization and magnetoresistance (MR), for both field parallel the ab-plane (H//ab) and the c-axis (H//c). An antiferromagnetic (AFM) transition is observed at the transition temperature (TN) of 14K. For both H//ab and H//c, the magnetization increases quickly with increasing magnetic field and saturated at high field for temperatures below TN. For H//ab, even a metamagnetic transition can be observed at low magnetic fields. The saturated values of magnetization are 6.8 and 7.0μBf.u.−1 for H//ab and H//c, respectively, implying that the moments come from Eu2+ ions. According to the data of magnetization and MR measurements, magnetic phase diagrams are established for both H//ab and H//c.
ISSN:0925-8388
1873-4669
DOI:10.1016/j.jallcom.2014.02.157