Tunable Quantum Tunneling of Magnetic Domain Walls
J. Brooke, T. F. Rosenbaum, G. Aeppli
Abstract
Magnetic domain wall tunneling is observed in the disordered Ising ferromagnet LiHo0.44Y0.56F4. The tunneling can be tuned by applying a magnetic field transverse to the Ising axis, and is readily modeled with a WKB formalism.
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