Elsevier

Intermetallics

Volume 115, December 2019, 106616
Intermetallics

Spin-glass freezing in single-crystalline Pr2NiSi3

https://doi.org/10.1016/j.intermet.2019.106616Get rights and content
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Highlights

  • Single crystal of Pr2NiSi3 grown by the Czochralski pulling technique.

  • AlB2-type crystal structure with disordered non-magnetic atom sublattice.

  • Spin glass freezing at 3.2 K.

Abstract

A single crystal of Pr2NiSi3 was examined by means of x-ray diffraction, magnetization, ac susceptibility, heat capacity and electrical resistivity measurements performed in wide ranges of the temperature and external magnetic fields. The compound crystallizes with simple hexagonal AlB2-type unit cell with crystallographic disorder in the non-magnetic atom sublattice. The results indicate formation at low temperatures of a spin-glass state with characteristic freezing temperature Tf=3.2K, which most likely originates from intrinsic crystallographic disorder in the AlB2-type unit cell.

Keywords

cerium intermetallics
Ternary silicides
Anisotropy
Magnetic properties
Electrical properties
Thermodynamic properties

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