Magnetoelastic coupling in multiferroic Ni3 V2 O8

Physical Review B - Condensed Matter and Materials Physics

Volumn 80, Issue 5, 2009, Pages

  Vergara, L I ^a   Cao, J ^a   Rogado, N ^b   Wang, Y Q ^c   Chaudhury, R P ^c   Cava, R J ^b   Lorenz, B ^c   Musfeldt, J L ^a  

^a UNIVERSITY OF TENNESSEE   (United States)

^b PRINCETON UNIVERSITY   (United States)

^c University of Houston   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 70249115549     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.80.052303     Document Type: Article

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29. This yields 5 data points/ cm-1. Our reported peak shifts take advantage of systematic shifts in many such data points through peak-fit techniques (Fig. 2).
30. For the cut crystal exposing the b axis, surface quality issues broadened phonon line widths and caused slight "leakage" of a and c related features into the spectrum. We also elected not to polish the crystal to avoid damage or polishing-induced stress. Despite these challenges, b -polarized phonon positions are highly reliable. Additional oscillators were, however, required to capture peak widths and asymmetries and get acceptable fits to the line shapes. Overall, the b -polarized data showed remarkably good agreement with the dynamics calculations of Ref.. Only one experimental peak (between b3 and b4) remains unassigned.
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39. See EPAPS Document No. E-PRBMDO-80-023929 for the numerical values for the frequency shifts. For more information on EPAPS, see http://www.aip.org/ pubservs/epaps.html.