Large variations in the magnetic ordering behavior of EuCu2As2 with the application of external pressure and magnetic field

The influence of external pressure on the electrical transport and magnetic properties of EuCu2As2, crystallizing in a ThCr2Si2-type structure, is reported. The system is known to be an antiferromagnet below TN 15 K in the absence of external magnetic fields. We find that there is a gradual reductio...

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Veröffentlicht in:	Journal of physics. Condensed matter 2012-03, Vol.24 (9)
Hauptverfasser:	Sengupta, K, Alzamora, M, Fontes, M B, Sampathkumaran, E V, Ramos, S M, Hering, E N, Saitovitch, E M B, Paulose, P L, Ranganathan, R, Doert, Th, Jemetio, J P F
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Exact sciences and technology Magnetic properties and materials Magnetically ordered materials: other intrinsic properties Physics Saturation moments and magnetic susceptibilities Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source x-ray scattering, etc.)
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Zusammenfassung:	The influence of external pressure on the electrical transport and magnetic properties of EuCu2As2, crystallizing in a ThCr2Si2-type structure, is reported. The system is known to be an antiferromagnet below TN 15 K in the absence of external magnetic fields. We find that there is a gradual reduction of TN with the application of a magnetic field with an extrapolated value of the critical field of around 18 kOe which can drive TN to zero. Electrical resistivity under pressure (
ISSN:	0953-8984 1361-648X
DOI:	10.1088/0953-8984/24/9/096004