Literature DB >> 17358642

Electromagnons in multiferroic YMn2O5 and TbMn2O5.

A B Sushkov1, R Valdés Aguilar, S Park, S-W Cheong, H D Drew.   

Abstract

Based on temperature dependent far infrared transmission spectra of YMn2O5 and TbMn2O5 single crystals, we report the observation of electric dipole-active magnetic excitations, or electromagnons, in these multiferroics. Electromagnons are found to be directly responsible for the steplike anomaly of the static dielectric constant at the commensurate--incommensurate magnetic transition and are the origin of the colossal magneto-dielectric effect reported in these multiferroics.

Entities:  

Year:  2007        PMID： 17358642     DOI： 10.1103/PhysRevLett.98.027202

Source DB:  PubMed          Journal:  Phys Rev Lett        ISSN： 0031-9007            Impact factor:   9.161


  3 in total

1.  Electric control of magnon frequencies and magnetic moment of bismuth ferrite thin films at room temperature.

Authors:  Ashok Kumar; J F Scott; R S Katiyar
Journal:  Appl Phys Lett       Date:  2011-08-10       Impact factor: 3.791

2.  Electromagnon dispersion probed by inelastic X-ray scattering in LiCrO2.

Authors:  Sándor Tóth; Björn Wehinger; Katharina Rolfs; Turan Birol; Uwe Stuhr; Hiroshi Takatsu; Kenta Kimura; Tsuyoshi Kimura; Henrik M Rønnow; Christian Rüegg
Journal:  Nat Commun       Date:  2016-11-24       Impact factor: 14.919

3.  Electromagnon excitation in cupric oxide measured by Fabry-Pérot enhanced terahertz Mueller matrix ellipsometry.

Authors:  Sean Knight; Dharmalingam Prabhakaran; Christian Binek; Mathias Schubert
Journal:  Sci Rep       Date:  2019-02-04       Impact factor: 4.379
  3 in total

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