Quantum Magnetic Properties in Perovskite with Anderson Localized Artificial Spin‐1/2
Abstract
Abstract Quantum magnetic properties in a geometrically frustrated lattice of spin‐1/2 magnet, such as quantum spin liquid or solid and the associated spin fractionalization, are considered key in developing a new phase of matter. The feasibility of observing the quantum magnetic properties, usually found in geometrically frustrated lattice of spin‐1/2 magnet, in a perovskite material with controlled disorder is demonstrated. It is found that the controlled chemical disorder, due to the chemical substitution of Ru ions by Co‐ions, in a simple perovskite CaRuO 3 creates a random prototype configuration of artificial spin‐1/2 that forms dimer pairs between the nearest and further away ions. The localization of the Co impurity in the Ru matrix is analyzed using the Anderson localization formulation. The dimers of artificial spin‐1/2, due to the localization of Co impurities, exhibit singlet‐to‐triplet excitation at low temperature without any ordered spin correlation. The localized gapped excitation evolves into a gapless quasi‐continuum as dimer pairs break and create freely fluctuating fractionalized spins at high temperature. Together, these properties hint at a new quantum magnetic state with strong resemblance to the resonance valence bond system.
- Authors:
-
- Department of Physics and Astronomy University of Missouri Columbia MO 65211‐7010 USA
- NIST Center for Neutron Research Gaithersburg MD 20878 USA, Department of Materials Science and Engineering University of Maryland College Park MD 20742 USA
- NIST Center for Neutron Research Gaithersburg MD 20878 USA
- Max‐Planck‐Institut für Mikrostrukturphysik Weinberg 2 06120 Halle Germany
- University of Missouri Research Reactor Columbia MO 65211 USA
- Department of Physics and Medical Engineering Rzeszów University of Technology 35‐959 Rzeszów Poland
- Max‐Planck‐Institut für Mikrostrukturphysik Weinberg 2 06120 Halle Germany, Institut für Theoretische Physik Johannes Kepler Universität 4040 Linz Austria
- Publication Date:
- Research Org.:
- Univ. of Missouri, Columbia, MO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1423485
- Alternate Identifier(s):
- OSTI ID: 1423486; OSTI ID: 1499006
- Grant/Contract Number:
- DE‐SC0014461; SC0014461
- Resource Type:
- Journal Article: Published Article
- Journal Name:
- Advanced Science
- Additional Journal Information:
- Journal Name: Advanced Science Journal Volume: 5 Journal Issue: 5; Journal ID: ISSN 2198-3844
- Publisher:
- Wiley Blackwell (John Wiley & Sons)
- Country of Publication:
- Germany
- Language:
- English
- Subject:
- 74 ATOMIC AND MOLECULAR PHYSICS; Anderson localization; perovskites; singlet-triplet transitions; quantum magnetism
Citation Formats
Gunasekera, Jagath, Dahal, Ashutosh, Chen, Yiyao, Rodriguez‐Rivera, Jose A., Harriger, Leland W., Thomas, Stefan, Heitmann, Thomas W., Dugaev, Vitalii, Ernst, Arthur, and Singh, Deepak K. Quantum Magnetic Properties in Perovskite with Anderson Localized Artificial Spin‐1/2. Germany: N. p., 2018.
Web. doi:10.1002/advs.201700978.
Gunasekera, Jagath, Dahal, Ashutosh, Chen, Yiyao, Rodriguez‐Rivera, Jose A., Harriger, Leland W., Thomas, Stefan, Heitmann, Thomas W., Dugaev, Vitalii, Ernst, Arthur, & Singh, Deepak K. Quantum Magnetic Properties in Perovskite with Anderson Localized Artificial Spin‐1/2. Germany. https://doi.org/10.1002/advs.201700978
Gunasekera, Jagath, Dahal, Ashutosh, Chen, Yiyao, Rodriguez‐Rivera, Jose A., Harriger, Leland W., Thomas, Stefan, Heitmann, Thomas W., Dugaev, Vitalii, Ernst, Arthur, and Singh, Deepak K. 2018.
"Quantum Magnetic Properties in Perovskite with Anderson Localized Artificial Spin‐1/2". Germany. https://doi.org/10.1002/advs.201700978.
@article{osti_1423485,
title = {Quantum Magnetic Properties in Perovskite with Anderson Localized Artificial Spin‐1/2},
author = {Gunasekera, Jagath and Dahal, Ashutosh and Chen, Yiyao and Rodriguez‐Rivera, Jose A. and Harriger, Leland W. and Thomas, Stefan and Heitmann, Thomas W. and Dugaev, Vitalii and Ernst, Arthur and Singh, Deepak K.},
abstractNote = {Abstract Quantum magnetic properties in a geometrically frustrated lattice of spin‐1/2 magnet, such as quantum spin liquid or solid and the associated spin fractionalization, are considered key in developing a new phase of matter. The feasibility of observing the quantum magnetic properties, usually found in geometrically frustrated lattice of spin‐1/2 magnet, in a perovskite material with controlled disorder is demonstrated. It is found that the controlled chemical disorder, due to the chemical substitution of Ru ions by Co‐ions, in a simple perovskite CaRuO 3 creates a random prototype configuration of artificial spin‐1/2 that forms dimer pairs between the nearest and further away ions. The localization of the Co impurity in the Ru matrix is analyzed using the Anderson localization formulation. The dimers of artificial spin‐1/2, due to the localization of Co impurities, exhibit singlet‐to‐triplet excitation at low temperature without any ordered spin correlation. The localized gapped excitation evolves into a gapless quasi‐continuum as dimer pairs break and create freely fluctuating fractionalized spins at high temperature. Together, these properties hint at a new quantum magnetic state with strong resemblance to the resonance valence bond system.},
doi = {10.1002/advs.201700978},
url = {https://www.osti.gov/biblio/1423485},
journal = {Advanced Science},
issn = {2198-3844},
number = 5,
volume = 5,
place = {Germany},
year = {Fri Mar 02 00:00:00 EST 2018},
month = {Fri Mar 02 00:00:00 EST 2018}
}
Web of Science
Figures / Tables:
Works referenced in this record:
Magnetic fluctuations driven insulator-to-metal transition in Ca(Ir1−xRux)O3
journal, December 2015
- Gunasekera, J.; Harriger, L.; Dahal, A.
- Scientific Reports, Vol. 5, Issue 1
Physical Properties of Single-Crystalline CaRuO 3 Grown by a Floating-Zone Method
journal, January 2009
- Kikugawa, Naoki; Balicas, Luis; Peter Mackenzie, Andrew
- Journal of the Physical Society of Japan, Vol. 78, Issue 1
Coherent-Potential Approximation for a Nonoverlapping-Muffin-Tin-Potential Model of Random Substitutional Alloys
journal, March 1972
- Gyorffy, B. L.
- Physical Review B, Vol. 5, Issue 6
Electronic Structure of Impurities in Cu, Calculated Self-Consistently by Korringa-Kohn-Rostoker Green's-Function Method
journal, June 1979
- Zeller, R.; Dederichs, P. H.
- Physical Review Letters, Vol. 42, Issue 25
Local spin density functional approach to the theory of exchange interactions in ferromagnetic metals and alloys
journal, May 1987
- Liechtenstein, A. I.; Katsnelson, M. I.; Antropov, V. P.
- Journal of Magnetism and Magnetic Materials, Vol. 67, Issue 1
Triplet Waves in a Quantum Spin Liquid
journal, May 2000
- Xu, Guangyong; Broholm, C.; Reich, Daniel H.
- Physical Review Letters, Vol. 84, Issue 19
Spin-Orbital Short-Range Order on a Honeycomb-Based Lattice
journal, May 2012
- Nakatsuji, S.; Kuga, K.; Kimura, K.
- Science, Vol. 336, Issue 6081
Exact Spin Liquid Ground States of the Quantum Dimer Model on the Square and Honeycomb Lattices
journal, June 2012
- Yao, Hong; Kivelson, Steven A.
- Physical Review Letters, Vol. 108, Issue 24
From high temperature superconductivity to quantum spin liquid: progress in strong correlation physics
journal, December 2007
- Lee, Patrick A.
- Reports on Progress in Physics, Vol. 71, Issue 1
Spin-Liquid Ground State of the S = 1/2 Kagome Heisenberg Antiferromagnet
journal, April 2011
- Yan, S.; Huse, D. A.; White, S. R.
- Science, Vol. 332, Issue 6034
The effect of Ru-site dopants on the magnetic properties of CaRuO 3
journal, August 2001
- He, T.; Cava, R. J.
- Journal of Physics: Condensed Matter, Vol. 13, Issue 36
Quantum spin liquid emerging in two-dimensional correlated Dirac fermions
journal, April 2010
- Meng, Z. Y.; Lang, T. C.; Wessel, S.
- Nature, Vol. 464, Issue 7290
Quantum Melting of Magnetic Order due to Orbital Fluctuations
journal, April 1997
- Feiner, Louis Felix; Oleś, Andrzej M.; Zaanen, Jan
- Physical Review Letters, Vol. 78, Issue 14
Quantum Criticality: Competing Ground States in Low Dimensions
journal, April 2000
- Sachdev, S.
- Science, Vol. 288, Issue 5465
Quantum-spin-liquid states in the two-dimensional kagome antiferromagnets ZnxCu4−x(OD)6Cl2
journal, August 2007
- Lee, S. -H.; Kikuchi, H.; Qiu, Y.
- Nature Materials, Vol. 6, Issue 11
Fractionalized excitations in the spin-liquid state of a kagome-lattice antiferromagnet
journal, December 2012
- Han, Tian-Heng; Helton, Joel S.; Chu, Shaoyan
- Nature, Vol. 492, Issue 7429
Resonating valence bonds: A new kind of insulator?
journal, February 1973
- Anderson, P. W.
- Materials Research Bulletin, Vol. 8, Issue 2
Numerical solution of the relativistic single-site scattering problem for the Coulomb and the Mathieu potential
journal, October 2015
- Geilhufe, Matthias; Achilles, Steven; Köbis, Markus Arthur
- Journal of Physics: Condensed Matter, Vol. 27, Issue 43
Mott Transition between a Spin-Liquid Insulator and a Metal in Three Dimensions
journal, May 2009
- Podolsky, Daniel; Paramekanti, Arun; Kim, Yong Baek
- Physical Review Letters, Vol. 102, Issue 18
Spin fluctuations in the ruthenium oxides and probed by Ru NMR
journal, November 1999
- Mukuda, H.; Ishida, K.; Kitaoka, Y.
- Physical Review B, Vol. 60, Issue 17
Extended scattering continua characteristic of spin fractionalization in the two-dimensional frustrated quantum magnet observed by neutron scattering
journal, October 2003
- Coldea, R.; Tennant, D. A.; Tylczynski, Z.
- Physical Review B, Vol. 68, Issue 13
Coherent-Potential Model of Substitutional Disordered Alloys
journal, April 1967
- Soven, Paul
- Physical Review, Vol. 156, Issue 3
Experimental Realization of a 2D Fractional Quantum Spin Liquid
journal, February 2001
- Coldea, R.; Tennant, D. A.; Tsvelik, A. M.
- Physical Review Letters, Vol. 86, Issue 7
Doping a Mott insulator: Physics of high-temperature superconductivity
journal, January 2006
- Lee, Patrick A.; Nagaosa, Naoto; Wen, Xiao-Gang
- Reviews of Modern Physics, Vol. 78, Issue 1
Molecular Quantum Magnetism in
journal, January 2014
- Mourigal, M.; Fuhrman, W. T.; Sheckelton, J. P.
- Physical Review Letters, Vol. 112, Issue 2
Gapless quantum spin liquid, stripe, and antiferromagnetic phases in frustrated Hubbard models in two dimensions
journal, July 2006
- Mizusaki, Takahiro; Imada, Masatoshi
- Physical Review B, Vol. 74, Issue 1
Ab initio angle-resolved photoemission in multiple-scattering formulation
journal, September 2001
- Lüders, M.; Ernst, A.; Temmerman, W. M.
- Journal of Physics: Condensed Matter, Vol. 13, Issue 38
Gapless Spin Liquids on the Three-Dimensional Hyperkagome Lattice of
journal, November 2008
- Lawler, Michael J.; Paramekanti, Arun; Kim, Yong Baek
- Physical Review Letters, Vol. 101, Issue 19
Quasilocal critical nature of cooperative paramagnetic fluctuations in metal
journal, June 2015
- Gunasekera, J.; Harriger, L.; Heitmann, T.
- Physical Review B, Vol. 91, Issue 24
Quasiparticle breakdown in a quantum spin liquid
journal, March 2006
- Stone, Matthew B.; Zaliznyak, Igor A.; Hong, Tao
- Nature, Vol. 440, Issue 7081
Figures / Tables found in this record: