Magnetic exchange interaction between rare-earth and Mn ions in multiferroic hexagonal manganites

Talbayev, Diyar; Trugman, Stuart A; Taylor, Antoinette J; Averitt, Richard D; Namjung, Hur; Andrew, Laforge D; Dimitri, Basov N

doi:10.1103/PhysRevLett.101.247601

Magnetic exchange interaction between rare-earth and Mn ions in multiferroic hexagonal manganites

Journal Article · Mon Dec 31 23:00:00 EST 2007 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.101.247601· OSTI ID:964969

Talbayev, Diyar ^[1]; Trugman, Stuart A ^[1]; Taylor, Antoinette J ^[1]; Averitt, Richard D ^[1]; Namjung, Hur ^[2]; Andrew, Laforge D ^[3]; Dimitri, Basov N ^[3]

Los Alamos National Laboratory
INHA UNIV
UCSD

The authors report a study of magnetic dynamics in multiferroic hexagonal manganite HoMnO{sub 3} by far-infrared spectroscopy. Low-temperature magnetic excitation spectrum of HoMnO{sub 3} consists of magnetic-dipole transitions of Ho ions within the crystal-field split J = 8 manifold and of the triangular antiferromagnetic resonance of Mn ions. They determine the effective spin Hamiltonian for the Ho ion ground state. The magnetic-field splitting of the Mn antiferromagnetic resonance allows us to measure the magnetic exchange coupling between the rare-earth and Mn ions.

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Research Organization:: Los Alamos National Laboratory (LANL)

Sponsoring Organization:: DOE

DOE Contract Number:: AC52-06NA25396

OSTI ID:: 964969

Report Number(s):: LA-UR-08-05530; LA-UR-08-5530

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters; ISSN 0031-9007; ISSN PRLTAO

Country of Publication:: United States

Language:: English

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Magnetic exchange interaction between rare-earth and Mn ions in multiferroic hexagonal manganites

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