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Kearley, G.J. (author), Johnson, M.R. (author), Tomkinson, J. (author)The lattice dynamics and molecular vibrations of benzene and deuterated benzene crystals are calculated from force constants derived from density-functional theory (DFT) calculations and compared with measured inelastic neutron-scattering spectra. A very small change (0.5%) in lattice parameter is required to obtain real lattice-mode frequencies...journal article 2006
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Yang, Z.Q. (author), Zhang, Y.Q. (author), Aarts, J. (author), Wu, M.Y. (author), Zandbergen, H.W. (author)We report the effects of biaxial strain on the charge ordering temperature Tco of the mixed-valent manganite perovskite oxide Pr0.5Ca0.5MnO3. Thin films were grown on SrTiO3, which has a 1.3% larger in-plane lattice parameter. Other substrates were used for comparison. Transport measurements combined with data from electron microscopy show that...journal article 2006
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Birowosuto, M.D. (author), Dorenbos, P. (author), Krämer, K.W. (author), Güdel, H.U. (author)Here, we report the scintillation properties of LaBr3?xIx:5%Ce3+ with four different compositions of x, i.e., x = 0.75, 1.5, 2, and 2.25. Radioluminescence spectra reveal a shift of the emission wavelength with the LaBr3 to LaI3 ratio. LaBr1.5I1.5:5%Ce3+ shows the highest scintillation light yield of 58?000?photons/MeV, whereas LaBr0.75I2.25:5...journal article 2008
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Miao, X.F. (author), Caron, L. (author), Gercsi, Z. (author), Daoud-Aladine, A. (author), Van Dijk, N.H. (author), Brück, E. (author)The thermal-history dependence of the magnetoelastic transition in (Mn,Fe)2(P,Si) compounds has been investigated using high-resolution neutron diffraction. As-prepared samples display a large difference in paramagnetic-ferromagnetic (PM-FM) transition temperature compared to cycled samples. The initial metastable state transforms into a lower...journal article 2015