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Abstract:
A new chiral sulfide family, Ln 4InSbS 9 (Ln = La, Pr, Nd), with its own structure type in space group P4 12 12 or its enantiomorph P4 32 12 has been synthesized by solid-state reaction. Remarkably, the La member shows the strongest Kleinman-forbidden second harmonic generation to date, with an intensity 1.5 times that of commercial AgGaS 2 at a laser wavelength of 2.05 μm, and exhibits type-I phase-matchable behavior. Density functional theory calculations and ab initio molecular dynamics simulations suggest that lattice vibrations may be responsible for the origin and magnitude of the strong SHG effect. © 2012 American Chemical Society.
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Journal of the American Chemical Society
ISSN: 0002-7863
Year: 2012
Issue: 4
Volume: 134
Page: 1993-1995
1 0 . 6 7 7
JCR@2012
1 4 . 5 0 0
JCR@2023
JCR Journal Grade:1
CAS Journal Grade:1
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ESI Highly Cited Papers on the List: 0 Unfold All
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