@article{10741,
  author = {Kathryn and Yiming Qiu and John Copley and H. and B.},
  title = {Order by Disorder Spin Wave Gap in the XY Pyrochlore Magnet Er<sub>2</sub>Ti<sub>2</sub>O<sub>7</sub>},
  year = {2014},
  number = {112},
  month = {2014-02-04},
  publisher = {Physical Review Letters},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=914620},
  language = {en},
}