| Title: |
Multiphase Magnetism in Yb2Ti2O7 |
| Authors: |
Scheie, A., Kindervater, J., Zhang, S., Changlani, H. J., Sala, G., Ehlers, G., Heinemann, A., Tucker, G. S., Koohpayeh, S. M., Broholm, C. |
| Source: |
Proceedings of the National Academy of Sciences (2020) |
| Publication Year: |
2019 |
| Collection: |
Condensed Matter |
| Subject Terms: |
Condensed Matter - Strongly Correlated Electrons |
| More Details: |
We document the coexistence of ferro- and anti-ferromagnetism in pyrochlore $\rm Yb_2Ti_2O_7$ using three neutron scattering techniques on stoichiometric crystals: elastic neutron scattering shows a canted ferromagnetic ground state, neutron scattering shows spin wave excitations from both a ferro-and an antiferro-magnetic state, and field and temperature dependent small angle neutron scattering reveals the corresponding anisotropic magnetic domain structure. High-field $\langle 111 \rangle$ spin wave fits show that $\rm Yb_2Ti_2O_7$ is extremely close to an antiferromagnetic phase boundary. Classical Monte Carlo simulations based on the interactions inferrred from high field spin wave measurements confirm $\psi_2$ antiferromagnetism is metastable within the FM ground state.
Comment: 11 pages and 11 figures, 8 pages appendices with 10 additional figures |
| Document Type: |
Working Paper |
| DOI: |
10.1073/pnas.2008791117 |
| Access URL: |
http://arxiv.org/abs/1912.04913 |
| Accession Number: |
edsarx.1912.04913 |
| Database: |
arXiv |
