Journal
PHYSICAL REVIEW LETTERS
Volume 109, Issue 3, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.037203
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Funding
- Australian Research Council
- Worldwide University Network
- INFN
- Hackett Foundation
- EPSRC
- Centre for Materials Physics and Chemistry at STFC
- U.S. Department of Energy, Office of Basic Energy Sciences [DE-AC02-98CH10886]
- EPSRC [EP/G005176/1, EP/H016309/1] Funding Source: UKRI
- Engineering and Physical Sciences Research Council [EP/H016309/1, EP/G005176/1] Funding Source: researchfish
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Quenched disorder affects how nonequilibrium systems respond to driving. In the context of artificial spin ice, an athermal system comprised of geometrically frustrated classical Ising spins with a twofold degenerate ground state, we give experimental and numerical evidence of how such disorder washes out edge effects and provide an estimate of disorder strength in the experimental system. We prove analytically that a sequence of applied fields with fixed amplitude is unable to drive the system to its ground state from a saturated state. These results should be relevant for other systems where disorder does not change the nature of the ground state.
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