@article{33381,
  author = {J Kim and Ramamoorthy Ramesh and N Kioussis},
  title = {Revealing the hidden structural phases of FeRh},
  abstract = {Ab initio electronic structure calculations reveal that tetragonal distortion has a dramatic effect on the relative stability of the various magnetic structures (C-, A-, G-, A′-AFM, and FM) of FeRh giving rise to a wide range of novel stable/metastable structures and magnetic phase transitions between these states. We predict that the cubic G-AFM structure, which was believed thus far to be the ground state, is metastable and that the tetragonally expanded G-AFM is the stable structure. The low energy barrier separating these states suggests phase coexistence at room temperature. We propose an A′-AFM phase to be the global ground state among all magnetic phases which arises from the strain-induced tuning of the exchange interactions. The results elucidate the underlying mechanism for the recent experimental findings of electric-field control of magnetic phase transition driven via tetragonal strain. The magnetic phase transitions open interesting prospects for exploiting strain engineering for the next-generation memory devices. © 2016 American Physical Society.},
  year = {2016},
  journal = {Physical Review B},
  volume = {94},
  number = {18},
  publisher = {American Physical Society},
  issn = {24699950},
  doi = {10.1103/PhysRevB.94.180407},
  note = {cited By 15},
  language = {eng},
}