The Ising model—in which degrees of freedom (spins) are binary valued (up/down)—is a cornerstone of statistical physics that shows rich behaviour when spins occupy a highly frustrated lattice such as kagome. Here we show that the layered Ising magnet Dy3Mg2Sb3O14 hosts an emergent order predicted theoretically for individual kagome layers of in-plane Ising spins. Neutron-scattering and bulk thermomagnetic measurements reveal a phase transition at ~0.3 K from a disordered spin-ice-like regime to an emergent charge ordered state, in which emergent magnetic charge degrees of freedom exhibit three-dimensional order while spins remain partially disordered. Monte Carlo simulations show that an interplay of inter-layer interactions, spin canting and chemical disorder stabilizes this state. Our results establish Dy3Mg2Sb3O14 as a tuneable system to study interacting emergent charges arising from kagome Ising frustration.
Paddison, Joseph A. M., et al. "Emergent order in the kagome Ising magnet Dy<sub>3</sub>Mg<sub>2</sub>Sb<sub>3</sub>O<sub>14</sub>." Nature Communications, vol. 7, no. 1, Dec. 2016. https://doi.org/10.1038/ncomms13842
Paddison, Joseph A. M., Ong, Harapan S., Hamp, James O., Mukherjee, Paromita, Bai, Xiaojian, Tucker, Matthew G., Butch, Nicholas P., Castelnovo, Claudio, Mourigal, Martin, & Dutton, S. E. (2016). Emergent order in the kagome Ising magnet Dy<sub>3</sub>Mg<sub>2</sub>Sb<sub>3</sub>O<sub>14</sub>. Nature Communications, 7(1). https://doi.org/10.1038/ncomms13842
Paddison, Joseph A. M., Ong, Harapan S., Hamp, James O., et al., "Emergent order in the kagome Ising magnet Dy<sub>3</sub>Mg<sub>2</sub>Sb<sub>3</sub>O<sub>14</sub>," Nature Communications 7, no. 1 (2016), https://doi.org/10.1038/ncomms13842
@article{osti_1623868,
author = {Paddison, Joseph A. M. and Ong, Harapan S. and Hamp, James O. and Mukherjee, Paromita and Bai, Xiaojian and Tucker, Matthew G. and Butch, Nicholas P. and Castelnovo, Claudio and Mourigal, Martin and Dutton, S. E.},
title = {Emergent order in the kagome Ising magnet Dy<sub>3</sub>Mg<sub>2</sub>Sb<sub>3</sub>O<sub>14</sub>},
annote = {The Ising model—in which degrees of freedom (spins) are binary valued (up/down)—is a cornerstone of statistical physics that shows rich behaviour when spins occupy a highly frustrated lattice such as kagome. Here we show that the layered Ising magnet Dy3Mg2Sb3O14 hosts an emergent order predicted theoretically for individual kagome layers of in-plane Ising spins. Neutron-scattering and bulk thermomagnetic measurements reveal a phase transition at ~0.3 K from a disordered spin-ice-like regime to an emergent charge ordered state, in which emergent magnetic charge degrees of freedom exhibit three-dimensional order while spins remain partially disordered. Monte Carlo simulations show that an interplay of inter-layer interactions, spin canting and chemical disorder stabilizes this state. Our results establish Dy3Mg2Sb3O14 as a tuneable system to study interacting emergent charges arising from kagome Ising frustration.},
doi = {10.1038/ncomms13842},
url = {https://www.osti.gov/biblio/1623868},
journal = {Nature Communications},
issn = {ISSN 2041-1723},
number = {1},
volume = {7},
place = {United States},
publisher = {Nature Publishing Group},
year = {2016},
month = {12}}
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
Engineering and Physical Sciences Research Council (EPSRC); Ministry of Education (MoE); Science and Technology Facilities Council (STFC); USDOE Office of Science (SC)
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