Unidirectional spin density wave state in metallic (Sr1-xLax)2IrO4
Abstract
Materials that exhibit both strong spin–orbit coupling and electron correlation effects are predicted to host numerous new electronic states. One prominent example is the Jeff = 1/2 Mott state in Sr2IrO4, where introducing carriers is predicted to manifest high temperature superconductivity analogous to the S=1/2 Mott state of La2CuO4. While bulk super- conductivity currently remains elusive, anomalous quasiparticle behaviors paralleling those in the cuprates such as pseudogap formation and the formation of a d-wave gap are observed upon electron-doping Sr2IrO4. Here we establish a magnetic parallel between electron-doped Sr2IrO4 and hole-doped La2CuO4 by unveiling a spin density wave state in electron-doped Sr2IrO4. Our magnetic resonant X-ray scattering data reveal the presence of an incom- mensurate magnetic state reminiscent of the diagonal spin density wave state observed in the monolayer cuprate (La1-xSrx)2CuO4. Furthermore, this link supports the conjecture that the quenched Mott phases in electron-doped Sr2IrO4 and hole-doped La2CuO4 support common competing electronic phases.
- Authors:
-
- Boston College, Chestnut Hill, MA (United States); Univ. of California, Santa Barbara, CA (United States)
- Univ. of California, Santa Barbara, CA (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Cornell Univ., Ithaca, NY (United States)
- Publication Date:
- Research Org.:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1425217
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS
Citation Formats
Chen, Xiang, Schmehr, Julian L., Islam, Zahirul, Porter, Zach, Zoghlin, Eli, Finkelstein, Kenneth, Ruff, Jacob P. C., and Wilson, Stephen D. Unidirectional spin density wave state in metallic (Sr1-xLax)2IrO4. United States: N. p., 2018.
Web. doi:10.1038/s41467-017-02647-1.
Chen, Xiang, Schmehr, Julian L., Islam, Zahirul, Porter, Zach, Zoghlin, Eli, Finkelstein, Kenneth, Ruff, Jacob P. C., & Wilson, Stephen D. Unidirectional spin density wave state in metallic (Sr1-xLax)2IrO4. United States. https://doi.org/10.1038/s41467-017-02647-1
Chen, Xiang, Schmehr, Julian L., Islam, Zahirul, Porter, Zach, Zoghlin, Eli, Finkelstein, Kenneth, Ruff, Jacob P. C., and Wilson, Stephen D. Tue .
"Unidirectional spin density wave state in metallic (Sr1-xLax)2IrO4". United States. https://doi.org/10.1038/s41467-017-02647-1. https://www.osti.gov/servlets/purl/1425217.
@article{osti_1425217,
title = {Unidirectional spin density wave state in metallic (Sr1-xLax)2IrO4},
author = {Chen, Xiang and Schmehr, Julian L. and Islam, Zahirul and Porter, Zach and Zoghlin, Eli and Finkelstein, Kenneth and Ruff, Jacob P. C. and Wilson, Stephen D.},
abstractNote = {Materials that exhibit both strong spin–orbit coupling and electron correlation effects are predicted to host numerous new electronic states. One prominent example is the Jeff = 1/2 Mott state in Sr2IrO4, where introducing carriers is predicted to manifest high temperature superconductivity analogous to the S=1/2 Mott state of La2CuO4. While bulk super- conductivity currently remains elusive, anomalous quasiparticle behaviors paralleling those in the cuprates such as pseudogap formation and the formation of a d-wave gap are observed upon electron-doping Sr2IrO4. Here we establish a magnetic parallel between electron-doped Sr2IrO4 and hole-doped La2CuO4 by unveiling a spin density wave state in electron-doped Sr2IrO4. Our magnetic resonant X-ray scattering data reveal the presence of an incom- mensurate magnetic state reminiscent of the diagonal spin density wave state observed in the monolayer cuprate (La1-xSrx)2CuO4. Furthermore, this link supports the conjecture that the quenched Mott phases in electron-doped Sr2IrO4 and hole-doped La2CuO4 support common competing electronic phases.},
doi = {10.1038/s41467-017-02647-1},
journal = {Nature Communications},
number = 1,
volume = 9,
place = {United States},
year = {Tue Jan 09 00:00:00 EST 2018},
month = {Tue Jan 09 00:00:00 EST 2018}
}
Web of Science
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