Cu-NMR study on the disordered quantum spin magnet with the Bose-glass ground state

Abstract

Cu-NMR study has been performed on the disordered spin-gap system Tl1-xKxCuCl3 In the high-field H > HC=Δ/μ_B, where Δis the spin-gap, the hyperfine field becomes extremely inhomogeneous at low temperatures due to the field-induced magnetic order, indicating that the ordered spin state must be different from the pure TlCuCl3. In the low field H < HC, a saturating behavior in the longitudinal nuclear spin relaxation rate 1/T1 was observed at low temperatures, indicating existence of the magnetic ground state proposed to be Bose-glass phase by Fisher.

arXiv commentRHMF2006

References in corpus (7)

• Realization of Bose-Einstein condensation of dilute magnons in TlCuCl${}_3$
• Field- and pressure-induced magnetic quantum phase transitions in TlCuCl_3
• Magnon Dispersion in the Field-Induced Magnetically Ordered Phase of TlCuCl3
• Observation of Field-Induced Transverse Néel Ordering in the Spin Gap System TlCuCl${}_3$
• Specific Heat Study of the Field-Induced Magnetic Ordering in the Spin Gap System TlCuCl${}_3$
• Random Bond Effect in the Quantum Spin System (Tl${}_{1-x}$K${}_x$)CuCl${}_3$
• Field-Induced Magnetic Order and Simultaneous Lattice Deformation in TlCuCl3

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