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Geometrical spin frustration in Pr5Ni2Si3 composed of triangular crystal lattices

Title
Geometrical spin frustration in Pr5Ni2Si3 composed of triangular crystal lattices
Authors
Min, BH[Min, B. H.]Hong, JI[Hong, J. I.]Kwon, YS[Kwon, Y. S.]
DGIST Authors
Min, BH[Min, B. H.]; Hong, JI[Hong, J. I.]; Kwon, YS[Kwon, Y. S.]
Issue Date
2014-08-13
Citation
Journal of Physics: Condensed Matter, 26(32)
Type
Article
Article Type
Article
Keywords
Antiferromagnetic CorrelationsAntiferromagnetismFerromagnetic TransitionsFrustrationLong Range OrdersLow TemperaturesMagnetic MomentsNickelPr5Ni2Si3SiliconSpecific HeatSpin FrustrationsStructural UnitTriangular Lattice
ISSN
0953-8984
Abstract
We have studied the transport, magnetic and thermal properties of Pr 5Ni2Si3 with complex triangular lattices under various magnetic fields. The ferromagnetic transitions in the basal plane were observed at TC1 = 52K and TC2 = 65K. A decrease in magnetization below 30K and the reduced paramagnetic Curie temperature θP are indicative of the development of antiferromagnetic correlation. These features are well understood by the frustration effect of the magnetic moments of Pr ions which constitute the triangular structural unit. The frustration caused the rapid rise of electrical resistivity below 30K and an enormous entropy in low-temperature regions. The antiferromagnetic correlation acting between the frustrated Pr ions never causes any long-range order down to 0.6K. © 2014 IOP Publishing Ltd.
URI
http://hdl.handle.net/20.500.11750/3055
DOI
10.1088/0953-8984/26/32/326002
Publisher
Institute of Physics Publishing
Files:
There are no files associated with this item.
Collection:
Emerging Materials ScienceQuantum Electric & Magnetic Materials Laboratory1. Journal Articles
Emerging Materials ScienceQuantum Functional Materials Laboratory1. Journal Articles


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