Display options
Cite
Anand VK, Adroja DT, Bhattacharyya A, et al. Investigations of the singlet ground state system: PrIrSi3. J Phys Condens Matter. 2014;26(30):306001doi: 10.1088/0953-8984/26/30/306001.
Anand, V. K., Adroja, D. T., Bhattacharyya, A., Hillier, A. D., Taylor, J. W., & Strydom, A. M. (2014). Investigations of the singlet ground state system: PrIrSi3. Journal of physics. Condensed matter : an Institute of Physics journal, 26(30), 306001. https://doi.org/10.1088/0953-8984/26/30/306001
Anand, V K, et al. "Investigations of the singlet ground state system: PrIrSi3." Journal of physics. Condensed matter : an Institute of Physics journal vol. 26,30 (2014): 306001. doi: https://doi.org/10.1088/0953-8984/26/30/306001
Anand VK, Adroja DT, Bhattacharyya A, Hillier AD, Taylor JW, Strydom AM. Investigations of the singlet ground state system: PrIrSi3. J Phys Condens Matter. 2014 Jul 30;26(30):306001. doi: 10.1088/0953-8984/26/30/306001. Epub 2014 Jul 04. PMID: 24994692.
Copy Download .nbib Format: NLM
Share it on

J Phys Condens Matter. 2014 Jul 30;26(30):306001. doi: 10.1088/0953-8984/26/30/306001. Epub 2014 Jul 04.

Investigations of the singlet ground state system: PrIrSi3.

Journal of physics. Condensed matter : an Institute of Physics journal

V K Anand, D T Adroja, A Bhattacharyya, A D Hillier, J W Taylor, A M Strydom

Affiliations

  1. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxon, OX11 0QX, UK. Helmholtz-Zentrum Berlin für Materialien und Energie, Hahn-Meitner Platz 1, D-14109 Berlin, Germany.

PMID: 24994692 DOI: 10.1088/0953-8984/26/30/306001

Abstract

We report our comprehensive study of physical properties of a ternary intermetallic compound PrIrSi3 investigated by dc magnetic susceptibility χ(T), isothermal magnetization M(H), thermo-remnant magnetization M(t), ac magnetic susceptibility χac(T), specific heat Cp(T), electrical resistivity ρ(T), muon spin relaxation (µSR) and inelastic neutron scattering (INS) measurements. A magnetic phase transition is marked by a sharp anomaly at Ttr = 12.2 K in χ(T) measured at low applied fields which is also reflected in the Cp(T) data through a weak anomaly at 12 K. An irreversibility between the zero field cooled and field cooled χ(T) data below 12.2 K and a very large relaxation time of M(t) indicates the presence of ferromagnetic correlation. The magnetic part of specific heat shows a broad Schottky-type anomaly near 40 K due to the crystal electric field (CEF) effect. An extremely small value of magnetic entropy below 12 K suggests a CEF-split singlet ground state which is confirmed from our analysis of INS data. The INS spectra show two prominent inelastic excitations at 8.5 meV and 18.5 meV that could be well accounted by a CEF model. The CEF splitting energy between the ground state singlet and the first excited doublet is found to be 92 K. Our µSR data reveal a possible magnetic ordering below 30 K, which is much higher than that found from the specific heat and magnetic susceptibility measurements. This could be due to the presence of short range correlations well above the long range magnetic ordering or due to the electronic changes induced by muons. The induced moment magnetism in the singlet ground state system PrIrSi3 with such a large splitting energy of 92 K is quite surprising.

Publication Types