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Volumn 82, Issue 13, 2010, Pages

Electric and magnetic polarizabilities of hexagonal Ln 2CuTiO6(Ln=Y, Dy, Ho, Er, and Yb)

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EID: 78049384573     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.82.134203     Document Type: Article
Times cited : (25)

References (28)
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    • 3, polarization persists whether or not the supercell is chosen to be commensurate with the K3 tilt pattern of trigonal bipyramids (Ref.), incommensurate cells adopt alternative (higher-energy) cooperative tilt patterns that are still strongly polar. Note also that the K point is mapped to Γ in our supercell. This means that if the rotational mode were unstable, it would be directly visible in the Γ -point phonon spectrum
    • 3, polarization persists whether or not the supercell is chosen to be commensurate with the K3 tilt pattern of trigonal bipyramids (Ref.), incommensurate cells adopt alternative (higher-energy) cooperative tilt patterns that are still strongly polar. Note also that the K point is mapped to Γ in our supercell. This means that if the rotational mode were unstable, it would be directly visible in the Γ -point phonon spectrum.


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