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Two inequivalent sublattices and orbital ordering in MnV2O4 studied by 51V NMR

Authors :
Baek, S. -H.
Curro, N. J.
Choi, K. -Y.
Reyes, A. P.
Kuhns, P. L.
Zhou, H. D.
Wiebe, C. R.
Source :
PRB, 80, 140406(R), (2009)
Publication Year :
2009

Abstract

We report detailed 51V NMR spectra in a single crystal of MnV2O4. The vanadium spectrum reveals two peaks in the orbitally ordered state, which arise from different internal hyperfine fields at two different V sublattices. These internal fields evolve smoothly with externally applied field, and show no change in structure that would suggest a change of the orbital ordering. The result is consistent with the orbital ordering model recently proposed by Sarkar et al. [Phys. Rev. Lett. 102, 216405 (2009)] in which the same orbital that is a mixture of t_2g orbitals rotates by about 45$^\circ$ alternately within and between orbital chains in the I4_1/a tetragonal space group.<br />Comment: 4 pages, 4 figures, title changed, published in PRB as a rapid comm

Details

Database :
arXiv
Journal :
PRB, 80, 140406(R), (2009)
Publication Type :
Report
Accession number :
edsarx.0907.5574
Document Type :
Working Paper
Full Text :
https://doi.org/10.1103/PhysRevB.80.140406