NMR Observation of Ferro-quadrupole Order in PrTi2Al20

Abstract

We report the results of 27Al-NMR measurements on a single crystal of PrTi2Al20. This compound shows a phase transition near 2 K associated with the quadrupole degree of freedom of Pr ions, for which the ground state of the crystalline electric field is a nonmagnetic doublet. When a magnetic field is applied along the <111> direction, the NMR lines split upon entering the low-temperature phase, indicating the breaking of the three fold rotation symmetry due to the field-induced magnetic dipole perpendicular to the field. This provides microscopic evidence for a ferro order of the O20 quadrupole. Although a first-order transition is expected theoretically, the line splitting evolves continuously within the experimental resolution.

arXiv commentaccepted for publication as a volume of J. Phy. Soc. Jpn

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Cited by in corpus (21)

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• Unveiling Hidden Orders: Magnetostriction as a Probe of Multipolar-Ordered States
• Landau theory of multipolar orders in Pr(TM)${}_2$X${}_{20}$ Kondo materials
• Two-stage multipolar ordering in Pr(TM)${}_2$Al${}_{20}$ Kondo materials
• Magnetoelectric Effects and Charge-Imbalanced Solenoids: Antiferro Quadrupole Orders in a Diamond Structure
• Field-Induced Switching of Ferro-Quadrupole Order Parameter in PrTi2Al20
• Cubic hastatic order in the two-channel Kondo-Heisenberg model
• Unusual Nonmagnetic Ordered State in CeCoSi Revealed by ${}^{59}$Co-NMR and NQR Measurements
• Field-induced Ferrohastatic Order in Cubic Non-Kramers Doublet Systems
• Hidden orders in spin-orbit entangled correlated insulators
• Unveiling Quadrupolar Kondo Effect in the Heavy Fermion Superconductor PrV${}_2$Al${}_{20}$
• Field-Orientation Effect on Ferro-Quadrupole Order in PrTi2Al20
• Anisotropic Superconductivity Emerging from the Orbital Degrees of Freedom in a ${\Gamma }_3$ Non-Kramers Doublet System
• Ferroic quadrupolar ordering in CeCoSi revealed using ${}^{59}$Co-NMR measurements
• Phonon-driven multipolar dynamics in a spin-orbit coupled Mott insulator
• Thermal and field-induced transitions in ferroquadrupolar Kondo systems
• First-principles Study of the RKKY Interaction and the Quadrupole Order in the Pr 1-2-20 systems PrT2Al20 (T=Ti, V)
• Nematic and time-reversal breaking superconductivities coexisting with quadrupole order in a ${\Gamma }_3$ system
• Interplay between Multipolar Order and Multipole-Induced Superconductivity in PrTi${}_2$Al${}_{20}$
• Collinear Magnetic Structure in the Diamond Network Magnet EuTi${}_2$Al${}_{20}$
• Pseudo-chiral phonon splitting from octupolar magnetic order