Dielectric screening and electric field control of ferromagnetism at the CaMnO3/CaRuO3 interface
Abstract
Control of magnetism by an applied electric field is a desirable technique for the functionalization of magnetic materials. Motivated by recent experiments, we study the electric field control of the interfacial magnetism of CaRuO3/CaMnO3 (CRO/CMO) (001), a prototype interface between a non-magnetic metal and an antiferromagnetic insulator. Even without the electric field, the interfacial CMO layer acquires a ferromagnetic moment due to a spin-canted state, caused by the Anderson-Hasegawa double exchange (DEX) between the Mn moments and the leaked electrons from the CRO side. An electric field would alter the carrier density at the interface, leading to the possibility of controlling the magnetism, since DEX is sensitive to the carrier density. We study this effect quantitatively using density-functional calculations in the slab geometry. We find a text-book like dielectric screening of the electric field, which introduces polarization charges at the interfaces and the surfaces. The extra charge at the interface enhances the ferromagnetism via the DEX interaction, while away from the interface the original AFM state of the Mn layers remains unchanged. The effect could have potential application in spintronics devices.
- Authors:
-
[1];
[2]
- Univ. of Missouri, Columbia, MO (United States); Ames Lab., and Iowa State Univ., Ames, IA (United States)
- Univ. of Missouri, Columbia, MO (United States)
- Publication Date:
- Research Org.:
- Univ. of Missouri, Columbia, MO (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1831276
- Grant/Contract Number:
- FG02-00ER45818
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 104; Journal Issue: 8; 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; Dielectric screening; Ferromagnetism; interface
Citation Formats
Bhandari, Churna, and Satpathy, S. Dielectric screening and electric field control of ferromagnetism at the CaMnO3/CaRuO3 interface. United States: N. p., 2021.
Web. doi:10.1103/physrevb.104.085134.
Bhandari, Churna, & Satpathy, S. Dielectric screening and electric field control of ferromagnetism at the CaMnO3/CaRuO3 interface. United States. https://doi.org/10.1103/physrevb.104.085134
Bhandari, Churna, and Satpathy, S. Tue .
"Dielectric screening and electric field control of ferromagnetism at the CaMnO3/CaRuO3 interface". United States. https://doi.org/10.1103/physrevb.104.085134. https://www.osti.gov/servlets/purl/1831276.
@article{osti_1831276,
title = {Dielectric screening and electric field control of ferromagnetism at the CaMnO3/CaRuO3 interface},
author = {Bhandari, Churna and Satpathy, S.},
abstractNote = {Control of magnetism by an applied electric field is a desirable technique for the functionalization of magnetic materials. Motivated by recent experiments, we study the electric field control of the interfacial magnetism of CaRuO3/CaMnO3 (CRO/CMO) (001), a prototype interface between a non-magnetic metal and an antiferromagnetic insulator. Even without the electric field, the interfacial CMO layer acquires a ferromagnetic moment due to a spin-canted state, caused by the Anderson-Hasegawa double exchange (DEX) between the Mn moments and the leaked electrons from the CRO side. An electric field would alter the carrier density at the interface, leading to the possibility of controlling the magnetism, since DEX is sensitive to the carrier density. We study this effect quantitatively using density-functional calculations in the slab geometry. We find a text-book like dielectric screening of the electric field, which introduces polarization charges at the interfaces and the surfaces. The extra charge at the interface enhances the ferromagnetism via the DEX interaction, while away from the interface the original AFM state of the Mn layers remains unchanged. The effect could have potential application in spintronics devices.},
doi = {10.1103/physrevb.104.085134},
journal = {Physical Review B},
number = 8,
volume = 104,
place = {United States},
year = {Tue Aug 17 00:00:00 EDT 2021},
month = {Tue Aug 17 00:00:00 EDT 2021}
}
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Works referenced in this record:
Electronic structure and polarons in single crystals: Optical data
journal, December 2004
- Loshkareva, N. N.; Nomerovannaya, L. V.; Mostovshchikova, E. V.
- Physical Review B, Vol. 70, Issue 22
Possible suppression of canted spin order in the double-exchange lanthanum manganites
journal, February 1997
- Mishra, S. K.; Satpathy, S.; Aryasetiawan, F.
- Physical Review B, Vol. 55, Issue 5
Neutron Diffraction Study of the Magnetic Properties of the Series of Perovskite-Type Compounds
journal, October 1955
- Wollan, E. O.; Koehler, W. C.
- Physical Review, Vol. 100, Issue 2
Orbital ordering and exchange interaction in the manganites
journal, August 2001
- Meskine, Hakim; König, Harald; Satpathy, Sashi
- Physical Review B, Vol. 64, Issue 9
Exchange bias in LaNiO3–LaMnO3 superlattices
journal, January 2012
- Gibert, Marta; Zubko, Pavlo; Scherwitzl, Raoul
- Nature Materials, Vol. 11, Issue 3
Effects of Double Exchange in Magnetic Crystals
journal, April 1960
- de Gennes, P. -G.
- Physical Review, Vol. 118, Issue 1
Projector augmented-wave method
journal, December 1994
- Blöchl, P. E.
- Physical Review B, Vol. 50, Issue 24, p. 17953-17979
Electric Field Control of Interfacial Ferromagnetism in Heterostructures
journal, July 2015
- Grutter, A. J.; Kirby, B. J.; Gray, M. T.
- Physical Review Letters, Vol. 115, Issue 4
Electron Leakage and Double-Exchange Ferromagnetism at the Interface between a Metal and an Antiferromagnetic Insulator:
journal, May 2007
- Nanda, B. R. K.; Satpathy, S.; Springborg, M. S.
- Physical Review Letters, Vol. 98, Issue 21
QUANTUM ESPRESSO: a modular and open-source software project for quantum simulations of materials
journal, September 2009
- Giannozzi, Paolo; Baroni, Stefano; Bonini, Nicola
- Journal of Physics: Condensed Matter, Vol. 21, Issue 39, Article No. 395502
Ferromagnetism in LaFeO3-LaCrO3 Superlattices
journal, May 1998
- Ueda, K.
- Science, Vol. 280, Issue 5366
Interface ferromagnetism in oxide superlattices of CaMnO3/CaRuO3
journal, August 2001
- Takahashi, K. S.; Kawasaki, M.; Tokura, Y.
- Applied Physics Letters, Vol. 79, Issue 9
Efficient iterative schemes for ab initio total-energy calculations using a plane-wave basis set
journal, October 1996
- Kresse, G.; Furthmüller, J.
- Physical Review B, Vol. 54, Issue 16, p. 11169-11186
Interfacial Ferromagnetism in Superlattices
journal, August 2013
- Grutter, A. J.; Yang, H.; Kirby, B. J.
- Physical Review Letters, Vol. 111, Issue 8
From ultrasoft pseudopotentials to the projector augmented-wave method
journal, January 1999
- Kresse, G.; Joubert, D.
- Physical Review B, Vol. 59, Issue 3, p. 1758-1775
Charge transport and magnetization profile at the interface between the correlated metal and the antiferromagnetic insulator
journal, March 2010
- Freeland, J. W.; Chakhalian, J.; Boris, A. V.
- Physical Review B, Vol. 81, Issue 9
Electronic Structure of the Perovskite Oxides:
journal, February 1996
- Satpathy, S.; Popović, Zoran S.; Vukajlović, Filip R.
- Physical Review Letters, Vol. 76, Issue 6
Interfacial Ferromagnetism and Exchange Bias in Superlattices
journal, November 2012
- He, C.; Grutter, A. J.; Gu, M.
- Physical Review Letters, Vol. 109, Issue 19
Advanced capabilities for materials modelling with Quantum ESPRESSO
journal, October 2017
- Giannozzi, P.; Andreussi, O.; Brumme, T.
- Journal of Physics: Condensed Matter, Vol. 29, Issue 46