Signatures of spin-glass state formation in PrRuSn

POSTER

Abstract

We report the magnetic, electronic, and transport properties of PrRuSn with the TiNiSi-structure type. A short-range correlation is observed near Tf = 4.5 K in the magnetic susceptibility data, which is attributed to a spin-glass freezing state below this temperature. This is further supported by the frequency dependence of ac magnetic susceptibility and the thermoremanent magnetization data. The relative shift of the freezing temperature per decade in frequency, δTf = 0.026, which, along with the slow decay in thermo-remnant magnetization, provides support for the formation of a cluster spin-glass in PrRuSn. We discuss the plausible scenarios that give rise to the realization of a spin-glass ground state in this compound. PrRuSn presents yet another example of the evolution of a spin-glass state in a well-ordered crystal structure with a well-localized magnetic moment.

*MOO appreciates the start-up grant from XULA College of Arts and Sciences. PP thanks the NSF of Sri Lanka for offering a travelling fellowship under OSTP programme (NSF/2018/13),and FRC of UJ for providing accommodation at UJ during the fellowship. AMS thanks the FRC and URC of UJ and NRF of SA (93549) for financial support.

Presenters

  • Michael O Ogunbunmi

    • Department of Physics and Engineering, Xavier University of Louisiana, New Orleans, LA 70125, USA

Authors

  • Michael O Ogunbunmi

    • Department of Physics and Engineering, Xavier University of Louisiana, New Orleans, LA 70125, USA

  • Pararajasingham Peratheepan

    • Physics of Strongly Correlated Materials Research Group, Department of Physics, Eastern University, Vantharumoolai, Chenkalady, 30350, Sri Lanka

  • André M Strydom

    • Highly Correlated Matter Research Group, Department of Physics, University of Johannesburg, PO Box 524, Auckland Park 2006, South Africa