Magnetic monopoles and toroidal moments in LuFeO3 and related compounds
Abstract
Magnetic monopoles and toroidal order are compelling features that have long been theorized but remain elusive in real materials. Multiferroic hexagonal ferrites and manganites are an interesting realization of frustrated triangular lattice of spins, where magnetic order is interacting with ferroelectricity and trimerization. In this paper, we discuss a microscopic mechanism by which trimerization leads to a modulation of magnetic exchanges, and therefore magnetic monopolar and toroidal orders emerge from the combination of 120° antiferromagnetism and trimerization. The experimentally observable signatures of magnetic monopolar and toroidal orders are identified in the inelastic neutron scattering cross section, simulated from a microscopic model of LuFeO3. The nonreciprocal magnon propagation is demonstrated.
- Authors:
-
- Italian Institute of Technology, Genova (Italy); University of Genova (Italy)
- Rutgers Univ., Piscataway, NJ (United States)
- Italian Institute of Technology, Genova (Italy)
- Publication Date:
- Research Org.:
- Rutgers Univ., Piscataway, NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1800458
- Grant/Contract Number:
- FG02-07ER46382
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 100; Journal Issue: 18; 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
Citation Formats
Foggetti, Francesco, Cheong, Sang-Wook, and Artyukhin, Sergey. Magnetic monopoles and toroidal moments in LuFeO3 and related compounds. United States: N. p., 2019.
Web. doi:10.1103/physrevb.100.180408.
Foggetti, Francesco, Cheong, Sang-Wook, & Artyukhin, Sergey. Magnetic monopoles and toroidal moments in LuFeO3 and related compounds. United States. https://doi.org/10.1103/physrevb.100.180408
Foggetti, Francesco, Cheong, Sang-Wook, and Artyukhin, Sergey. Thu .
"Magnetic monopoles and toroidal moments in LuFeO3 and related compounds". United States. https://doi.org/10.1103/physrevb.100.180408. https://www.osti.gov/servlets/purl/1800458.
@article{osti_1800458,
title = {Magnetic monopoles and toroidal moments in LuFeO3 and related compounds},
author = {Foggetti, Francesco and Cheong, Sang-Wook and Artyukhin, Sergey},
abstractNote = {Magnetic monopoles and toroidal order are compelling features that have long been theorized but remain elusive in real materials. Multiferroic hexagonal ferrites and manganites are an interesting realization of frustrated triangular lattice of spins, where magnetic order is interacting with ferroelectricity and trimerization. In this paper, we discuss a microscopic mechanism by which trimerization leads to a modulation of magnetic exchanges, and therefore magnetic monopolar and toroidal orders emerge from the combination of 120° antiferromagnetism and trimerization. The experimentally observable signatures of magnetic monopolar and toroidal orders are identified in the inelastic neutron scattering cross section, simulated from a microscopic model of LuFeO3. The nonreciprocal magnon propagation is demonstrated.},
doi = {10.1103/physrevb.100.180408},
journal = {Physical Review B},
number = 18,
volume = 100,
place = {United States},
year = {Thu Nov 21 00:00:00 EST 2019},
month = {Thu Nov 21 00:00:00 EST 2019}
}
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