Sijun J. Zhang

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We have undertaken an inelastic neutron scattering study of the perovskite relaxor ferroelectric Pb(Zn(1/3)Nb(2/3))O3 with 8% PbTiO3 (PZN-8%PT) in order to elucidate the origin of the previously reported unusual kink on the low frequency transverse phonon dispersion curve (known as the "waterfall effect"). We show that its position (q(wf)) depends on the(More)
We report on optical spectroscopy (photoluminescence and photoluminescence excitation) on two-dimensional self-organized layers of (C(6)H(5)C(2)H(4)-NH(3))(2)-PbI(4) perovskite. Temperature and excitation power dependance of the optical spectra gives a new insight into the excitonic and the phononic properties of this hybrid organic/inorganic semiconductor.(More)
The paper is a summary of progress to date of progress of LEAG in developing a grassroots community Lunar Exploration Roadmap. Predictions for the Optical Scattering at the Moon, as Observed by the LADEE UV/Vis Spectrometer [#2348] Predictions are made for exospheric atomic line emissions, coronal and zodiacal light, as well as for " lunar horizon glow "(More)
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