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EuNiGe 3 , an anisotropic antiferromagnet
- Source :
- Journal of Physics: Condensed Matter, Journal of Physics: Condensed Matter, IOP Publishing, 2014, 26 (21), pp.216001. ⟨10.1088/0953-8984/26/21/216001⟩, Journal of Physics: Condensed Matter, 2014, 26 (21), pp.216001. ⟨10.1088/0953-8984/26/21/216001⟩
- Publication Year :
- 2014
- Publisher :
- HAL CCSD, 2014.
-
Abstract
- International audience; Single crystals of EuNiGe 3 crystallizing in the non-centrosymmetric BaNiSn 3-type structure have been grown using In flux, enabling us to explore the anisotropic magnetic properties which was not possible with previously reported polycrystalline samples. The EuNiGe 3 single crystalline sample is found to order antiferromagnetically at 13.2 K as revealed from the magnetic susceptibility, heat capacity and electrical resistivity data. The low temperature magnetization M(H) is distinctly different for field parallel to ab-plane and c-axis; the ab-plane magnetization varies nearly linearly with field before the occurrence of an induced ferromagnetic phase (spin-flip) at 6.2 Tesla; on the other hand M(H) along the c-axis is accompanied by two metamagnetic transitions followed by a spin-flip at 4.1 T. A model including anisotropic exchange and dipole-dipole interactions reproduces the main features of magnetization plots but falls short of full representation. (H,T) phase diagrams have been constructed for the field applied along the principal directions. From the 151 Eu Mössbauer spectra, we determine that the 13.2 K transition leads to an incommensu-rate antiferromagnetic intermediate phase followed by a transition near 10.5 K to a commensurate antiferromagnetic configuration.
- Subjects :
- [PHYS]Physics [physics]
Materials science
Condensed matter physics
02 engineering and technology
021001 nanoscience & nanotechnology
Condensed Matter Physics
01 natural sciences
Magnetic susceptibility
non-centrosymmetric
Magnetization
Ferromagnetism
Electrical resistivity and conductivity
Phase (matter)
0103 physical sciences
antiferromagnetism
Antiferromagnetism
General Materials Science
Condensed Matter::Strongly Correlated Electrons
EuNiGe 3
010306 general physics
0210 nano-technology
Anisotropy
Mössbauer spectra
Magnetic anisotropy
Phase diagram
Subjects
Details
- Language :
- English
- ISSN :
- 09538984 and 1361648X
- Database :
- OpenAIRE
- Journal :
- Journal of Physics: Condensed Matter, Journal of Physics: Condensed Matter, IOP Publishing, 2014, 26 (21), pp.216001. ⟨10.1088/0953-8984/26/21/216001⟩, Journal of Physics: Condensed Matter, 2014, 26 (21), pp.216001. ⟨10.1088/0953-8984/26/21/216001⟩
- Accession number :
- edsair.doi.dedup.....4c0936db992085225847064b89265c04