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Quantum-Classical Reentrant Relaxation Crossover in Dy2Ti2O7 Spin Ice
dc.contributor.author | Snyder, J. | |
dc.contributor.author | Ueland, B. G. | |
dc.contributor.author | Slusky, Joanna | |
dc.contributor.author | Karunadasa, H. | |
dc.contributor.author | Cava, R. J. | |
dc.contributor.author | Mizel, Ari | |
dc.contributor.author | Schiffer, P. | |
dc.date.accessioned | 2016-10-17T18:43:57Z | |
dc.date.available | 2016-10-17T18:43:57Z | |
dc.date.issued | 2003-09-05 | |
dc.identifier.citation | Snyder, J., Ueland, B. G., Slusky, J. S., Karunadasa, H., Cava, R. J., Mizel, A., & Schiffer, P. (2003). Quantum-Classical Reentrant Relaxation Crossover in D y 2 T i 2 O 7 Spin Ice. Physical review letters, 91(10), 107201. | en_US |
dc.identifier.uri | http://hdl.handle.net/1808/21749 | |
dc.description.abstract | We have studied spin relaxation in the spin ice compound Dy2Ti2O7 through measurements of the ac magnetic susceptibility. While the characteristic spin-relaxation time (τ) is thermally activated at high temperatures, it becomes almost temperature independent below Tcross∼13 K. This behavior, combined with nonmonotonic magnetic field dependence of τ, indicates that quantum tunneling dominates the relaxational process below that temperature. As the low-entropy spin ice state develops below Tice∼4 K, τ increases sharply with decreasing temperature, suggesting the emergence of a collective degree of freedom for which thermal relaxation processes again become important as the spins become strongly correlated. | en_US |
dc.publisher | American Physical Society | en_US |
dc.rights | ©2003 American Physical Society | en_US |
dc.title | Quantum-Classical Reentrant Relaxation Crossover in Dy2Ti2O7 Spin Ice | en_US |
dc.type | Article | en_US |
kusw.kuauthor | Slusky, Joanna | |
kusw.kudepartment | Molecular Biosciences | en_US |
dc.identifier.doi | 10.1103/PhysRevLett.91.107201 | en_US |
kusw.oaversion | Scholarly/refereed, publisher version | en_US |
kusw.oapolicy | This item does not meet KU Open Access policy criteria. | en_US |
dc.rights.accessrights | openAccess |