Extremely slow non-equilibrium monopole dynamics in classical spin ice

Type of Publication: Journal article
Publication status: Published
Author: Stöter, Thomas; Dörr, Mathias; Granovsky, Sergey; Rotter, Martin; Gönnenwein, Sebastian T. B.; Zherlitsyn, Sergei; Petrenko, Oleg A.; Balakrishnan, Geetha; Zhou, Hai Dong; Wosnitza, Joachim
Year of publication: 2020
Published in: Physical Review B ; 101 (2020), 22. - 224416. - American Physical Society (APS). - ISSN 0163-1829. - eISSN 1095-3795
ArXiv-ID: arXiv:2001.10844
DOI (citable link): https://dx.doi.org/10.1103/PhysRevB.101.224416
Summary:
We report on the non-equilibrium monopole dynamics in the classical spin ice Dy2Ti2O7 detected by means of high-resolution magnetostriction measurements. Significant lattice changes occur at the transition from the kagome-ice to the saturated-ice phase, visible in the longitudinal and transverse magnetostriction. A hysteresis opening at temperatures below 0.6 K suggests a first-order transition between the kagome and saturated state. Extremely slow lattice relaxations, triggered by changes of the magnetic field, were observed. These lattice-relaxation effects result from non-equilibrium monopole formation or annihilation processes. The relaxation times extracted from our experiment are in good agreement with theoretical predictions with decay constants of the order of 104 s at 0.3 K.
Subject (DDC): 530 Physics
Bibliography of Konstanz: Yes
Refereed: Yes

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STÖTER, Thomas, Mathias DÖRR, Sergey GRANOVSKY, Martin ROTTER, Sebastian T. B. GÖNNENWEIN, Sergei ZHERLITSYN, Oleg A. PETRENKO, Geetha BALAKRISHNAN, Hai Dong ZHOU, Joachim WOSNITZA, 2020. Extremely slow non-equilibrium monopole dynamics in classical spin ice. In: Physical Review B. American Physical Society (APS). 101(22), 224416. ISSN 0163-1829. eISSN 1095-3795. Available under: doi: 10.1103/PhysRevB.101.224416

@article{Stoter2020-01-29T14:01:37ZExtre-52375, title={Extremely slow non-equilibrium monopole dynamics in classical spin ice}, year={2020}, doi={10.1103/PhysRevB.101.224416}, number={22}, volume={101}, issn={0163-1829}, journal={Physical Review B}, author={Stöter, Thomas and Dörr, Mathias and Granovsky, Sergey and Rotter, Martin and Gönnenwein, Sebastian T. B. and Zherlitsyn, Sergei and Petrenko, Oleg A. and Balakrishnan, Geetha and Zhou, Hai Dong and Wosnitza, Joachim}, note={Article Number: 224416} }

2021-01-13T10:26:34Z Zhou, Hai Dong Granovsky, Sergey terms-of-use Gönnenwein, Sebastian T. B. Rotter, Martin Zherlitsyn, Sergei Wosnitza, Joachim 2020-01-29T14:01:37Z Stöter, Thomas Zherlitsyn, Sergei Balakrishnan, Geetha Stöter, Thomas Gönnenwein, Sebastian T. B. eng 2021-01-13T10:26:34Z Dörr, Mathias Balakrishnan, Geetha Wosnitza, Joachim Granovsky, Sergey Rotter, Martin Zhou, Hai Dong Petrenko, Oleg A. We report on the non-equilibrium monopole dynamics in the classical spin ice Dy<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub> detected by means of high-resolution magnetostriction measurements. Significant lattice changes occur at the transition from the kagome-ice to the saturated-ice phase, visible in the longitudinal and transverse magnetostriction. A hysteresis opening at temperatures below 0.6 K suggests a first-order transition between the kagome and saturated state. Extremely slow lattice relaxations, triggered by changes of the magnetic field, were observed. These lattice-relaxation effects result from non-equilibrium monopole formation or annihilation processes. The relaxation times extracted from our experiment are in good agreement with theoretical predictions with decay constants of the order of 10<sup>4</sup> s at 0.3 K. Extremely slow non-equilibrium monopole dynamics in classical spin ice Dörr, Mathias Petrenko, Oleg A.

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