Anisotropic nematic fluctuations above the ferroquadrupolar transition in TmVO${}_4$

Abstract

TmVO${}_4$ exhibits ferroquadrupolar order below 2.15 K with a well-isolated non-Kramers ground state doublet, and is a model system to understand Ising nematic order. We present ${}^{51}$V nuclear magnetic resonance data as a function of field orientation in a single crystal. Although the spectra are well understood in terms of direct dipolar hyperfine couplings, the spin lattice relaxation rate exhibits strong anisotropy that cannot be understood in terms of magnetic fluctuations. We find that the spin lattice relaxation rate scales with the shear elastic constant associated with the ferroquadrupole phase transition, suggesting that quadrupole (nematic) fluctuations dominate the spin lattice relaxation for in-plane fields.

arXiv comment7 pages, 5 figures

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Cited by in corpus (9)

• Field-tuned ferroquadrupolar quantum phase transition in the insulator TmVO${}_4$
• Second order Zeeman interaction and ferroquadrupolar order in TmVO${}_4$
• Possible realization of three-dimensional quantum spin liquid behavior in HoVO4
• Controllable emergent spatial spin modulation in Sr2IrO4 by in situ shear strain
• Role of magnetic ions in the thermal Hall effect of the paramagnetic insulator TmVO${}_4$
• Spin-echo and quantum versus classical critical fluctuations in TmVO${}_4$
• Realization of giant elastocaloric cooling at cryogenic temperatures in TmVO${}_4$ via a strain load/unload technique
• Quantum Criticality in the infinite-range Transverse Field Ising Model
• Nuclear magnetic resonance studies in a model transverse field Ising system