Quantum Projection in an Ising Spin Liquid

Abstract

A transverse magnetic field is used to scan the diagonal and off-diagonal susceptibility of the uniaxial quantum magnet, ${\text{LiHo}}_{0.045}{\text{Y}}_{0.955}{\text{F}}_4$. Clusters of strongly-coupled spins act as the primary source for the response functions, which result from a field-induced quantum projection of the system into a classically forbidden (meaning non-Ising) regime. Calculations based on spin pairs reproduce only some features of the data and fail to predict the measured off-diagonal response, providing evidence of a multi-spin collective state.

5 pages, 4 figures

References in corpus (6)

• Theory of the spin bath
• Entangled Quantum States of Magnetic Dipoles
• Nuclear spin driven quantum relaxation in LiY_0.998Ho_0.002F_4
• Quantum Phase Transition of a Magnet in a Spin Bath
• Coherent Spin Oscillations in a Disordered Magnet
• Probing spin dynamics and quantum relaxation in LiY0.998Ho0.002F4 via 19F NMR

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• Existence of a Thermodynamic Spin-Glass Phase in the Zero-Concentration Limit of Anisotropic Dipolar Systems
• Probing many-body localization in a disordered quantum magnet
• Using thermal boundary conditions to engineer the quantum state of a bulk magnet
• Experimental Phase Diagram and Dynamics of a Dilute Dipolar-Coupled Ising System
• Effective Spin-1/2 Description of Transverse-Field-Induced Random Fields in Dipolar Spin Glasses with Strong Single-Ion Anisotropy
• Assessment of the RE(OH)3 Ising-like Magnetic Materials as Possible Candidates for the Study of Transverse-Field-Induced Quantum Phase Transitions
• Interplay of disorder and geometrical frustration in doped Gadolinium Gallium Garnet
• Quantum dynamics in strongly driven random dipolar magnets