High-temperature electromagnons in the magnetically induced multiferroic cupric oxide driven by intersublattice exchange

S. P. P. Jones, S. M. Gaw, K. I. Doig, D. Prabhakaran, E. M. Hétroy Wheeler, A. T. Boothroyd and J. Lloyd-Hughes ()
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S. P. P. Jones: Clarendon Laboratory, University of Oxford
S. M. Gaw: Clarendon Laboratory, University of Oxford
K. I. Doig: Clarendon Laboratory, University of Oxford
D. Prabhakaran: Clarendon Laboratory, University of Oxford
E. M. Hétroy Wheeler: Institut Laue-Langevin, BP156
A. T. Boothroyd: Clarendon Laboratory, University of Oxford
J. Lloyd-Hughes: Clarendon Laboratory, University of Oxford

Nature Communications, 2014, vol. 5, issue 1, 1-7

Abstract: Abstract Magnetically induced ferroelectric multiferroics present an exciting new paradigm in the design of multifunctional materials, by intimately coupling magnetic and polar order. Magnetoelectricity creates a novel quasiparticle excitation—the electromagnon—at terahertz frequencies, with spectral signatures that unveil important spin interactions. To date, electromagnons have been discovered at low temperature (

Date: 2014
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DOI: 10.1038/ncomms4787

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