Optical study on the possible Slater insulator
Abstract
The orthorhombic perovskite iridate SrIr0.8Sn0.2O3 is reported to be a new candidate of Slater insulator at low temperatures. Here, we present optical spectroscopy measurements on SrIr0.8Sn0.2O3 at different temperatures (T) across the paramagnetic-antiferromagnetic phase transition. The low energy reflectivity decreases with reducing T. Six phonon peaks in the spectrum at low T are visible at room temperature, indicating the absence of crystal structure phase transition from 300 K to 10 K. The real part of conductivity spectra σ1 (ω) are obtained by employing the standard Kramers-Kronig transformation. In the paramagnetic state at room temperature, σ1 (ω) reaches a limiting value as ω → 0, implying an electrical conducting state. Upon decreasing T, the low frequency σ1 (ω) decreases and approaches zero with a concomitant opening of a direct gap. As a result, detailed analysis of the low energy data shows that the gap opening is continuous and σ1 (ω) at the low energy gap edge follows an unusual ω1/2 dependence at low temperatures which is remarkably similar to other Slater insulators, such as NaOsO3.
- Authors:
-
- Chinese Academy of Sciences (CAS), Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Univ. of Chinese Academy of Sciences, Beijing (China); Songshan Lake Materials Lab., Guangdong (China)
- Chinese Academy of Sciences (CAS), Beijing (China); ShanghaiTech Univ. (China)
- Boston College, Chestnut Hill, MA (United States)
- Publication Date:
- Research Org.:
- Boston College, Chestnut Hill, MA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1610429
- Alternate Identifier(s):
- OSTI ID: 1546429
- Grant/Contract Number:
- FG02-99ER45747
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 100; 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; materials science; physics; phase transitions; 3-dimensional systems; Fourier transform infrared spectroscopy
Citation Formats
Zheng, P., Cui, Q., Chen, Z. G., Cheng, J. G., Liu, X., Wang, Z. Q., and Luo, J. L. Optical study on the possible Slater insulator SrIr0.8Sn0.2O3. United States: N. p., 2019.
Web. doi:10.1103/physrevb.100.045101.
Zheng, P., Cui, Q., Chen, Z. G., Cheng, J. G., Liu, X., Wang, Z. Q., & Luo, J. L. Optical study on the possible Slater insulator SrIr0.8Sn0.2O3. United States. https://doi.org/10.1103/physrevb.100.045101
Zheng, P., Cui, Q., Chen, Z. G., Cheng, J. G., Liu, X., Wang, Z. Q., and Luo, J. L. Tue .
"Optical study on the possible Slater insulator SrIr0.8Sn0.2O3". United States. https://doi.org/10.1103/physrevb.100.045101. https://www.osti.gov/servlets/purl/1610429.
@article{osti_1610429,
title = {Optical study on the possible Slater insulator SrIr0.8Sn0.2O3},
author = {Zheng, P. and Cui, Q. and Chen, Z. G. and Cheng, J. G. and Liu, X. and Wang, Z. Q. and Luo, J. L.},
abstractNote = {The orthorhombic perovskite iridate SrIr0.8Sn0.2O3 is reported to be a new candidate of Slater insulator at low temperatures. Here, we present optical spectroscopy measurements on SrIr0.8Sn0.2O3 at different temperatures (T) across the paramagnetic-antiferromagnetic phase transition. The low energy reflectivity decreases with reducing T. Six phonon peaks in the spectrum at low T are visible at room temperature, indicating the absence of crystal structure phase transition from 300 K to 10 K. The real part of conductivity spectra σ1 (ω) are obtained by employing the standard Kramers-Kronig transformation. In the paramagnetic state at room temperature, σ1 (ω) reaches a limiting value as ω → 0, implying an electrical conducting state. Upon decreasing T, the low frequency σ1 (ω) decreases and approaches zero with a concomitant opening of a direct gap. As a result, detailed analysis of the low energy data shows that the gap opening is continuous and σ1 (ω) at the low energy gap edge follows an unusual ω1/2 dependence at low temperatures which is remarkably similar to other Slater insulators, such as NaOsO3.},
doi = {10.1103/physrevb.100.045101},
journal = {Physical Review B},
number = 4,
volume = 100,
place = {United States},
year = {Tue Jul 02 00:00:00 EDT 2019},
month = {Tue Jul 02 00:00:00 EDT 2019}
}
Web of Science
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Works referenced in this record:
Doublon-holon binding, Mott transition, and fractionalized antiferromagnet in the Hubbard model
journal, May 2014
- Zhou, Sen; Wang, Yupeng; Wang, Ziqiang
- Physical Review B, Vol. 89, Issue 19
Magnetically Driven Metal-Insulator Transition in
journal, June 2012
- Calder, S.; Garlea, V. O.; McMorrow, D. F.
- Physical Review Letters, Vol. 108, Issue 25
Continuous magnetic phase transition in half-frustrated Ca Os O
journal, November 2012
- Zheng, P.; Shi, Y. G.; Wu, Q. S.
- Physical Review B, Vol. 86, Issue 19
Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of
journal, June 2012
- Yamaura, J.; Ohgushi, K.; Ohsumi, H.
- Physical Review Letters, Vol. 108, Issue 24
Searching for the Slater transition in the pyrochlore with infrared spectroscopy
journal, July 2002
- Padilla, W. J.; Mandrus, D.; Basov, D. N.
- Physical Review B, Vol. 66, Issue 3
Phase-Sensitive Observation of a Spin-Orbital Mott State in Sr2IrO4
journal, March 2009
- Kim, B. J.; Ohsumi, H.; Komesu, T.
- Science, Vol. 323, Issue 5919
Absence of a Slater Transition in the Two-Dimensional Hubbard Model
journal, October 2001
- Moukouri, S.; Jarrell, M.
- Physical Review Letters, Vol. 87, Issue 16
Interplay between spin-orbit coupling and Hubbard interaction in SrIrO and related perovskite oxides
journal, August 2012
- Zeb, M. Ahsan; Kee, Hae-Young
- Physical Review B, Vol. 86, Issue 8
Temperature dependence of the optical response of perovskite-type SrIrO3 thin film
journal, April 2014
- Moon, S. J.
- Journal of the Korean Physical Society, Vol. 64, Issue 8
Novel Mott State Induced by Relativistic Spin-Orbit Coupling in
journal, August 2008
- Kim, B. J.; Jin, Hosub; Moon, S. J.
- Physical Review Letters, Vol. 101, Issue 7
Slater Insulator in Iridate Perovskites with Strong Spin-Orbit Coupling
journal, October 2016
- Cui, Q.; Cheng, J. -G.; Fan, W.
- Physical Review Letters, Vol. 117, Issue 17
Syntheses, structures and properties of some osmates(iv,v) adopting the pyrochlore and weberite structures
journal, June 2002
- Reading, J.; Knee, C. S.; Weller, M. T.
- Journal of Materials Chemistry, Vol. 12, Issue 8
Continuous metal-insulator transition in the pyrochlore
journal, April 2001
- Mandrus, D.; Thompson, J. R.; Gaal, R.
- Physical Review B, Vol. 63, Issue 19
Semimetal and Topological Insulator in Perovskite Iridates
journal, March 2012
- Carter, Jean-Michel; Shankar, V. Vijay; Zeb, M. Ahsan
- Physical Review B, Vol. 85, Issue 11
Charge Dynamics and Metal–Insulator Transition in Perovskite SrIr 1− x Sn x O 3
journal, December 2018
- Fujioka, Jun; Okawa, Tatsuya; Masuko, Makoto
- Journal of the Physical Society of Japan, Vol. 87, Issue 12
Magnetic Effects and the Hartree-Fock Equation
journal, May 1951
- Slater, J. C.
- Physical Review, Vol. 82, Issue 4
Weak ferromagnetism, metal-to-nonmetal transition, and negative differential resistivity in single-crystal
journal, May 1998
- Cao, G.; Bolivar, J.; McCall, S.
- Physical Review B, Vol. 57, Issue 18
Optical study on doped polyaniline composite films
journal, August 2004
- Li, G.; Zheng, P.; Wang, N. L.
- Journal of Physics: Condensed Matter, Vol. 16, Issue 34
Low temperature synthesis and characterization of rare earth orthoferrites LnFeO3 (Ln=La, Pr and Nd) from molten NaOH flux
journal, July 2006
- Shivakumara, C.
- Solid State Communications, Vol. 139, Issue 4
The Basis of the Electron Theory of Metals, with Special Reference to the Transition Metals
journal, July 1949
- Mott, N. F.
- Proceedings of the Physical Society. Section A, Vol. 62, Issue 7
Infrared evidence of a Slater metal-insulator transition in NaOsO3
journal, October 2013
- Vecchio, I. Lo; Perucchi, A.; Di Pietro, P.
- Scientific Reports, Vol. 3, Issue 1
The metal-to-semiconductor transition in ternary ruthenium (IV) oxides: a study by electron spectroscopy
journal, November 1983
- Cox, P. A.; Egdell, R. G.; Goodenough, J. B.
- Journal of Physics C: Solid State Physics, Vol. 16, Issue 32
Temperature evolution of magnetic and transport behavior in 5 d Mott insulator Sr 2 IrO 4 : significance of magneto-structural coupling
journal, December 2014
- Bhatti, Imtiaz Noor; Rawat, R.; Banerjee, A.
- Journal of Physics: Condensed Matter, Vol. 27, Issue 1
Observation of the Gap and Kinetic Energy in a Correlated Insulator
journal, September 1994
- Thomas, G. A.; Rapkine, D. H.; Carter, S. A.
- Physical Review Letters, Vol. 73, Issue 11
Absence of a Slater Transition in the Two-Dimensional Hubbard Model
text, January 2001
- Jarrell, M.; Moukouri, S.
- The American Physical Society
Semimetal and Topological Insulator in Perovskite Iridates
text, January 2011
- Carter, Jean-Michel; Shankar, V. Vijay; Zeb, M. Ahsan
- arXiv
Tetrahedral Magnetic Order and the Metal-Insulator Transition in the Pyrochlore Lattice of Cd2Os2O7
text, January 2012
- Yamaura, J.; Ohgushi, K.; Ohsumi, H.
- arXiv
Infrared evidence of a Slater metal-insulator transition in NaOsO3
text, January 2013
- Vecchio, Irene Lo; Perucchi, Andrea; Di Pietro, Paola
- arXiv
Slater Insulator in Iridate Perovskites with Strong Spin-Orbit Coupling
text, January 2017
- Cui, Q.; Cheng, J. -G.; Fan, W.
- arXiv
Figures / Tables found in this record: