LaSrVO4 : A candidate for the spin-orbital liquid state

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Z. L. Dun
  • V. O. Garlea
  • C. Yu
  • E. S. Choi
  • H. M. Zhang
  • S. Dong
  • H. D. Zhou

Detail(s)

Original languageEnglish
Article number235131
Journal / PublicationPhysical Review B - Condensed Matter and Materials Physics
Volume89
Issue number23
Publication statusPublished - 26 Jun 2014
Externally publishedYes

Abstract

A layered perovskite LaSrVO4 was studied by neutron diffraction, pair distribution function measurement using synchrotron x-ray, susceptibility, and specific heat measurements, and first-principles calculation. The results show (i) a weak structural distortion around 100 K with the existence of orbital fluctuations both above and below it; (ii) the absence of the long range magnetic ordering down to 0.35 K but the appearance of a short range magnetic ordering around 11 K with a T2 behavior of the specific heat below it. Meanwhile, the calculation based on the density functional theory predicts a magnetic ordered ground state. All facts indicate a melting of the magnetic ordering due to the orbital fluctuations in LaSrVO4, which makes it a rare candidate for the spin-orbital liquid state related to t2g orbitals. © 2014 American Physical Society.

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Citation Format(s)

LaSrVO4 : A candidate for the spin-orbital liquid state. / Dun, Z. L.; Garlea, V. O.; Yu, C.; Ren, Y.; Choi, E. S.; Zhang, H. M.; Dong, S.; Zhou, H. D.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 89, No. 23, 235131, 26.06.2014.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review