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Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr 2 IrO 4
Abstract
Measurement of the quantum-mechanical phase in quantum matter provides the most direct manifestation of the underlying abstract physics. We used resonant x-ray scattering to probe the relative phases of constituent atomic orbitals in an electronic wave function, which uncovers the unconventional Mott insulating state induced by relativistic spin-orbit coupling in the layered 5 d transition metal oxide Sr 2 IrO 4 . A selection rule based on intra-atomic interference effects establishes a complex spin-orbital state represented by an effective total angular momentum = 1/2 quantum number, the phase of which can lead to a quantum topological state of matter.
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Citations
Cites
Possible highT c superconductivity in the Ba?La?Cu?O system
Bednorz, J. G., & M�ller, K. A. (1986) · Zeitschrift f�r Physik B Condensed Matter · doi:10.1007/bf01303701 · Cited by 14,319
Cited by
Wan, X., Turner, A. M., Vishwanath, A., & Savrasov, S. Y. (2011) · Physical Review B · doi:10.1103/physrevb.83.205101 · Cited by 4,718
Proximate Kitaev quantum spin liquid behaviour in a honeycomb magnet
Banerjee, A., Bridges, C. A., Yan, J.-Q., Aczel, A. A., Li, L., Stone, M. B., Granroth, G. E., Lumsden, M. D., Yiu, Y., Knolle, J., et al. (2016) · Nature Materials · doi:10.1038/nmat4604 · Cited by 835
Topological and magnetic phases of interacting electrons in the pyrochlore iridates
Witczak-Krempa, W., & Kim, Y. B. (2012) · Physical Review B · doi:10.1103/physrevb.85.045124 · Cited by 384
Long-range magnetic ordering in Na2IrO3
Liu, X., Berlijn, T., Yin, W.-G., Ku, W., Tsvelik, A., Kim, Y.-J., Gretarsson, H., Singh, Y., Gegenwart, P., & Hill, J. P. (2011) · Physical Review B · doi:10.1103/physrevb.83.220403 · Cited by 353
Non-Fermi-liquid and topological states with strong spin-orbit coupling.
Moon, E.-G., Xu, C., Kim, Y. B., & Balents, L. (2013) · Physical Review Letters · doi:10.1103/physrevlett.111.206401 · Cited by 260
Metadata
- Authors
- Kim, B. J., Ohsumi, H., Komesu, T., Sakai, S., Morita, T., Takagi, H., & Arima, T.
- Venue
- Science
- Published
- 2009-03-06
- Volume
- 323
- Issue
- 5919
- Pages
- 1329-1332
- ISSN
- 0036-8075 (ISSN-L)
- 1095-9203
- OpenAlex
- W2087722637
- Cited by
- 1,146
- References
- 1
- FWCI
- 30.17
- Type
- journal article
- Language
- en
- Open access
- closed
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- Kim, B. J., Ohsumi, H., Komesu, T., Sakai, S., Morita, T., Takagi, H., & Arima, T. (2009). Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr 2 IrO 4. Science. https://doi.org/10.1126/science.1167106
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