Magnons in the Multiferroic Phase of Cupric Oxide

Avishek Maity; Steffen Schwesig; Fabian Ziegler; Oleg Sobolev; Götz Eckold

doi:10.1002/pssb.201900704

Magnons in the Multiferroic Phase of Cupric Oxide

Avishek Maity
, Steffen Schwesig
, Fabian Ziegler
, Oleg Sobolev
, Götz Eckold

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

Polarized neutron scattering is used to characterize low-energy magnetic excitations in the multiferroic and antiferromagnetic phases of cupric oxide (CuO). The experiments are performed with the novel type of polarization analysis available at the thermal three-axes spectrometer PUMA@FRM, II allowing the simultaneous detection of spinflip and nonspinflip scattering. The energy gaps of several magnon modes are determined, and evidence for the existence of electromagnons near 3 and 13 meV is found.

Original language	English
Article number	1900704
Journal	Physica Status Solidi (B) Basic Research
Volume	257
Issue number	5
DOIs	https://doi.org/10.1002/pssb.201900704
State	Published - May 1 2020
Externally published	Yes

Funding

This work was funded by the German Federal Ministry for Education and Research (BMBF) under contract no. 05K13MG3. This work was funded by the German Federal Ministry for Education and Research (BMBF) under contract no. 05K13MG3.

Keywords

cupric oxide
magnons
multiferroics
polarized inelastic neutron scattering
spin gap

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10.1002/pssb.201900704

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abstract = "Polarized neutron scattering is used to characterize low-energy magnetic excitations in the multiferroic and antiferromagnetic phases of cupric oxide (CuO). The experiments are performed with the novel type of polarization analysis available at the thermal three-axes spectrometer PUMA@FRM, II allowing the simultaneous detection of spinflip and nonspinflip scattering. The energy gaps of several magnon modes are determined, and evidence for the existence of electromagnons near 3 and 13 meV is found.",

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author = "Avishek Maity and Steffen Schwesig and Fabian Ziegler and Oleg Sobolev and G{\"o}tz Eckold",

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T1 - Magnons in the Multiferroic Phase of Cupric Oxide

AU - Maity, Avishek

AU - Schwesig, Steffen

AU - Ziegler, Fabian

AU - Sobolev, Oleg

AU - Eckold, Götz

PY - 2020/5/1

Y1 - 2020/5/1

N2 - Polarized neutron scattering is used to characterize low-energy magnetic excitations in the multiferroic and antiferromagnetic phases of cupric oxide (CuO). The experiments are performed with the novel type of polarization analysis available at the thermal three-axes spectrometer PUMA@FRM, II allowing the simultaneous detection of spinflip and nonspinflip scattering. The energy gaps of several magnon modes are determined, and evidence for the existence of electromagnons near 3 and 13 meV is found.

AB - Polarized neutron scattering is used to characterize low-energy magnetic excitations in the multiferroic and antiferromagnetic phases of cupric oxide (CuO). The experiments are performed with the novel type of polarization analysis available at the thermal three-axes spectrometer PUMA@FRM, II allowing the simultaneous detection of spinflip and nonspinflip scattering. The energy gaps of several magnon modes are determined, and evidence for the existence of electromagnons near 3 and 13 meV is found.

KW - cupric oxide

KW - magnons

KW - multiferroics

KW - polarized inelastic neutron scattering

KW - spin gap

UR - https://www.scopus.com/pages/publications/85078036667

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M3 - Article

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IS - 5

M1 - 1900704

ER -

Magnons in the Multiferroic Phase of Cupric Oxide

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