Crystal structure of the inversion-breaking metal
Abstract
Second harmonic generation (SHG) on the pyrochlore metal Cd2Re2O7 indicates the presence of three order parameters setting in below an inversion breaking transition. Here, we explore a possible structural explanation and relate it not only to the SHG data but also to neutron and x-ray diffraction, where we find that such a structural scenario can explain certain reflection extinctions observed in single crystal x-ray data. From this analysis, we suggest future experiments that could be done to resolve this matter. Lastly, we comment on the Landau-violating nature of the inversion breaking transition and its relation to similar phenomena observed in improper ferroelectrics.
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1582583
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 101; Journal Issue: 4; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Norman, M. R. Crystal structure of the inversion-breaking metal Cd2Re2O7. United States: N. p., 2020.
Web. doi:10.1103/PhysRevB.101.045117.
Norman, M. R. Crystal structure of the inversion-breaking metal Cd2Re2O7. United States. https://doi.org/10.1103/PhysRevB.101.045117
Norman, M. R. Mon .
"Crystal structure of the inversion-breaking metal Cd2Re2O7". United States. https://doi.org/10.1103/PhysRevB.101.045117. https://www.osti.gov/servlets/purl/1582583.
@article{osti_1582583,
title = {Crystal structure of the inversion-breaking metal Cd2Re2O7},
author = {Norman, M. R.},
abstractNote = {Second harmonic generation (SHG) on the pyrochlore metal Cd2Re2O7 indicates the presence of three order parameters setting in below an inversion breaking transition. Here, we explore a possible structural explanation and relate it not only to the SHG data but also to neutron and x-ray diffraction, where we find that such a structural scenario can explain certain reflection extinctions observed in single crystal x-ray data. From this analysis, we suggest future experiments that could be done to resolve this matter. Lastly, we comment on the Landau-violating nature of the inversion breaking transition and its relation to similar phenomena observed in improper ferroelectrics.},
doi = {10.1103/PhysRevB.101.045117},
journal = {Physical Review B},
number = 4,
volume = 101,
place = {United States},
year = {Mon Jan 13 00:00:00 EST 2020},
month = {Mon Jan 13 00:00:00 EST 2020}
}
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