Understanding thermal annealing of artificial spin ice
نویسندگان
چکیده
منابع مشابه
Thermal quenches in spin ice.
We study the diffusion-annihilation process which occurs when spin ice is quenched from a high temperature paramagnetic phase deep into the spin-ice regime, where the excitations--magnetic monopoles--are sparse. We find that due to the Coulomb interaction between the monopoles, a dynamical arrest occurs, in which nonuniversal lattice-scale constraints impede the complete decay of charge fluctua...
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Frustrated systems, typically characterized by competing interactions that cannot all be simultaneously satisfied, display rich behaviours not found elsewhere in nature. Artificial spin ice takes a materials-by-design approach to studying frustration, where lithographically patterned bar magnets mimic the frustrated interactions in real materials but are also amenable to direct characterization...
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Artificial spin ice, made up of planar nanostructured arrays of simple ferromagnetic bars, is a playground for rich physics associated with the spin alignment of the bars and spin texture associated with the magnetic frustration at the bar vertices. The phase diagram is exotic, showing magnetic monopole-like defects and liquid and solid phases of spins arranged in loop states with predicted chi...
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R. V. Chopdekar,1,* B. Li,1 T. A. Wynn,1 M. S. Lee,1 Y. Jia,1 Z. Q. Liu,2,† M. D. Biegalski,2 S. T. Retterer,2 A. T. Young,3 A. Scholl,3 and Y. Takamura1 1Department of Materials Science and Engineering, University of California, Davis, Davis, California 95616, USA 2Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 3Advanced Light Source, La...
متن کاملFragmentation of magnetism in artificial kagome dipolar spin ice
Geometrical frustration in magnetic materials often gives rise to exotic, low-temperature states of matter, such as the ones observed in spin ices. Here we report the imaging of the magnetic states of a thermally active artificial magnetic ice that reveal the fingerprints of a spin fragmentation process. This fragmentation corresponds to a splitting of the magnetic degree of freedom into two ch...
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ژورنال
عنوان ژورنال: APL Materials
سال: 2019
ISSN: 2166-532X
DOI: 10.1063/1.5126713