| Full text | |
| Author(s): Show less - |
Seo, S.
[1]
;
Wang, Xiaoyu
[2]
;
Thomas, S. M.
[1]
;
Rahn, M. C.
[1, 3]
;
Carmo, D.
[4]
;
Ronning, F.
[1]
;
Bauer, E. D.
[1]
;
dos Reis, R. D.
[4]
;
Janoschek, M.
[1, 5]
;
Thompson, J. D.
[1]
;
Fernandes, R. M.
[6]
;
Rosa, P. F. S.
[1]
Total Authors: 12
|
| Affiliation: | [1] Los Alamos Natl Lab, Los Alamos, NM 87545 - USA
[2] Univ Chicago, James Franck Inst, Chicago, IL 60615 - USA
[3] Tech Univ Dresden, Inst Solid State & Mat Phys, D-01062 Dresden - Germany
[4] Brazilian Synchrotron Light Lab LNLS, BR-13083100 Campinas, SP - Brazil
[5] Paul Scherrer Inst, Lab Sci Dev & Novel Mat, CH-5232 Villigen - Switzerland
[6] Univ Minnesota, Sch Phys & Astron, Minneapolis, MN 55455 - USA
Total Affiliations: 6
|
| Document type: | Journal article |
| Source: | PHYSICAL REVIEW X; v. 10, n. 1 FEB 13 2020. |
| Web of Science Citations: | 0 |
| Abstract | |
At ambient pressure and zero field, tetragonal CeAuSb2 hosts stripe antiferromagnetic order at T-N = 6.3 K. Here, we first show via bulk thermodynamic probes and x-ray diffraction measurements that this magnetic order is connected with a structural phase transition to a superstructure that likely breaks C-4 symmetry, thus signaling nematic order. The temperature-field-pressure phase diagram of CeAuSb2 subsequently reveals the emergence of additional ordered states under applied pressure at a multicritical point. Our phenomenological model supports the presence of a vestigial nematic phase in CeAuSb2 akin to iron-based high-temperature superconductors; however, superconductivity, if present, remains to be discovered. (AU) | |
| FAPESP's process: | 18/22883-5 - Unconventional phases of actinide compounds under extreme conditions |
| Grantee: | Danusa do Carmo |
| Support type: | Scholarships in Brazil - Post-Doctorate |
| FAPESP's process: | 18/00823-0 - New topological states of matter under extreme conditions |
| Grantee: | Ricardo Donizeth dos Reis |
| Support type: | Research Grants - Young Investigators Grants |