The magnetic order in multiferroic DyMnO3

Lee, Jenn-Min (author): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,National Synchrotron Radiation Research Center Taiwan

Huang, Shih-Wen (author): Lund University,Lunds universitet,MAX IV-laboratoriet,MAX IV Laboratory,Lawrence Berkeley National Laboratory

Chen, Jin Ming (author): National Synchrotron Radiation Research Center Taiwan

(creator_code:org_t)

Elsevier BV, 2021
2021
English.
In: Journal of Electron Spectroscopy and Related Phenomena. - : Elsevier BV. - 0368-2048. ; 246

Related links:: http://dx.doi.org/10...; show more...; http://manuscript.el...; https://lup.lub.lu.s...; https://doi.org/10.1...; show less...

Abstract Subject headings

With flexibility in tuning their electric and magnetic properties, multiferroics can be used in information exchange and storage in ways that are very different from the present electronic materials. Here we use resonant soft x-ray scattering spectroscopy to study the -type and -type (0, 1-, 0) diffraction peaks from sinusoidal antiferromagnetic spin order in multiferroic DyMnO. By comparing the temperature dependence of ordering wave vectors , peak intensities , and correlation lengths measured at Mn -, O -, and Dy -edges, we show that the nearly perfect locking between the ordering wave vectors from Dy states and Mn 3 orbitals manifesting the second harmonic diffraction peak implies the notable orbital involvement in the coupling between Mn and Dy spins. Our DFT calculations further suggest that the lattice response to different antiferromagnetic ground states (A-type versus E-type) is much weaker in TbMnO, in agreement with previous claim that the symmetric exchange interaction can be an important factor for understanding the ferroelectricity in DyMnO than in TbMnO.

By the author/editor: Lee, Jenn-Min; Huang, Shih-Wen; Jeng, Horng-Tay; Shao, Yu-Cheng; Wray, L Andrew; Chen, Jin Ming; show more...; Qiao, Ruimin; Yang, Wanli; Lin, Jiunn Yuan; Schoenlein, R W; Chuang, Yi-De; show less...

About the subject

NATURAL SCIENCES: NATURAL SCIENCES; and Physical Science ...; and Condensed Matter ...

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