In this review we provide an introduction to the physics of a series of frustrated quantum rare-earth pyrochlores. We first give a background on the microscopic single- and two-ion physics of these materials, discussing the origins and properties of their exchange interactions and their minimal low-energy effective models, before outlining what is known about their classical and quantum phases. We then make use of this understanding to discuss four important material examples: Er2Ti2O7, Yb2Ti2O7, Tb2Ti2O7 and Pr2Zr2O7, covering in some detail what is known experimentally and theoretically for each, and summarize some key questions that remain open. Finally, we offer an outlook on some alternative material platforms for realizing similar physics and discuss what we see as prospects for future investigations on these quantum rare-earth pyrochlores.
Cite
@article{arxiv.1806.09638,
title = {Frustrated quantum rare-earth pyrochlores},
author = {Jeffrey G. Rau and Michel J. P. Gingras},
journal= {arXiv preprint arXiv:1806.09638},
year = {2019}
}
Comments
20 pages, 10 figures. To appear in Annual Reviews of Condensed Matter Physics