@article{ed3ac4e14a65440393a0d5ccb5c66ab2,
title = "Coupled structural distortions, domains, and control of phase competition in polar SmBaMn2 O6",
abstract = "Materials with coupled or competing order parameters display highly tunable ground states, where subtle perturbations reveal distinct electronic and magnetic phases. These states generally are underpinned by complex crystal structures, but the role of structural complexity in these phases often is unclear. We use group-theoretic methods and first-principles calculations to analyze a set of coupled structural distortions that underlie the polar charge and orbitally ordered antiferromagnetic ground state of A-site ordered SmBaMn2O6. We show that these distortions play a key role in establishing the ground state and stabilizing a network of domain wall vortices. Furthermore, we show that the crystal structure provides a knob to control competing electronic and magnetic phases at structural domain walls and in epitaxially strained thin films. These results provide new understanding of the complex physics realized across multiple length scales in SmBaMn2O6 and demonstrate a framework for systematic exploration of correlated and structurally complex materials.",
author = "Nowadnick, {Elizabeth A.} and Jiangang He and Fennie, {Craig J.}",
note = "Funding Information: We acknowledge support from the U. S. Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, under Award No. DE-SC0002334 and from the Army Research Office under grant W911NF-10-1-0345. E.A.N. also acknowledges support from the New Jersey Institute of Technology. This research used computational resources supported by the Cornell University Center for Advanced Computing and by Academic and Research Computing Systems at the New Jersey Institute of Technology. Funding Information: We acknowledge support from the U. S. Department of Energy, Office of Basic Energy Sciences, Materials Sciences and Engineering Division, under Award No. DE-SC0002334 and from the Army Research Office under grant W911NF-10-1-0345. E.A.N. also acknowledges support from the New Jersey Institute of Technology. This research used computational resources supported by the Cornell University Center for Advanced Computing and by Academic and Research Computing Systems at the New Jersey Institute of Technology. E.A.N. and J.H. contributed equally to this work. APPENDIX A: Publisher Copyright: {\textcopyright} 2019 American Physical Society.",
year = "2019",
month = nov,
day = "18",
doi = "10.1103/PhysRevB.100.195129",
language = "English (US)",
volume = "100",
journal = "Physical Review B",
issn = "2469-9950",
publisher = "American Institute of Physics",
number = "19",
}