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2019-03-19
15:00
[PUBDB-2019-01623] Journal Article
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Exploring the failure behavior of rubber vulcanizates subjected to constraint tensile strain via X-ray experiments
Tire technology international November, 100 - 102 () special issue: "Annual Showcase 2018"  GO
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2019-03-15
11:37
[PUBDB-2019-01557] Journal Article
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Virtual Archaeology of Altered Paintings: Multiscale Chemical Imaging Tools
Elements 12(1), 39 - 44 () [10.2113/gselements.12.1.39]  GO
Understanding how painted works of art were constructed, layer-by-layer, requires a range of macroscopic and microscopic X-ray and infrared-based analytical methods. Deconstructing complex assem-blies of paints horizontally across a picture and vertically through it provides insight into the detailed production process of the art work and on the painting techniques and styles of its maker. [...]
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2019-03-11
15:31
OpenAccess [PUBDB-2019-01461] Journal Article
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Ptychographic characterization of polymer compound refractive lenses manufactured by additive technology
Optics express 27(6), 8639 - 8650 () [10.1364/OE.27.008639]  GO
The recent success in the development of high-precision printing techniques allows one to manufacture free-standing polymer structures of high quality. Two-photon polymerization lithography is a mask-less technique with down to 100 nm resolution that provides full geometric freedom [...]
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2019-03-11
13:10
[PUBDB-2019-01441] Journal Article
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Synchrotron-based crystal structure, associated morphology of snail and bivalve shells by X-ray diffraction
Synchrotron-based high-resolution X-ray powder diffraction spectra from the body parts of a snail and bivalve (CaCO$_3$), have been recorded with Pilatus area detector. Experiments were performed at Desy, Hamburg, Germany, utilizing the Resonant and Diffraction beamline (P9), with 15 keV X-rays (λ=0.82666 Å). [...]
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2019-03-11
12:08
OpenAccess [PUBDB-2019-01440] Journal Article
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Robust Bain distortion in the premartensite phase of a platinum-substituted $\mathrm{Ni_{2}}MnGa$ magnetic shape memory alloy
The premartensite phase of shape memory and magnetic shape memory alloys (MSMAs) is believed to be a precursor state of the martensite phase with preserved austenite phase symmetry. The thermodynamic stability of the premartensite phase and its relation to the martensitic phase is still an unresolved issue, even though it is critical to the understanding of the functional properties of MSMAs [...]
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2019-03-11
11:56
[PUBDB-2019-01438] Journal Article

Magnetodielectric Relaxation in $Ho_{2}Ti_{2}O_{7}$ and $Dy_{2}Ti_{2}O_{7}$ Spin Ice
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2019-03-11
11:39
Embargoed OpenAccess [PUBDB-2019-01436] Journal Article
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Néel transition in the multiferroic $\mathrm{BiFeO_{3}-0.25PbTiO_{3}}$ nanoparticles with anomalous size effect
The role of size reduction on the structural parameters, antiferromagnetic transition temperature (T$_N$), and spin reorientation transition temperature of BiFeO$_3$-0.25PbTiO$_3$ (BF-0.25PT) has been studied. Rietveld analysis using high resolution synchrotron x-ray powder diffraction data confirms that the space group of BF-0.25PT solid solutions is monoclinic Cc and not rhombohedral R3c for both bulk and nanocrystalline powders. [...]
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2019-03-11
11:31
[PUBDB-2019-01435] Journal Article
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Deciphering role of the Fe substitution in modulating the structural, magnetic and magnetocaloric properties of $\mathrm{NdCrTi_{5}}$
A detailed magnetic study on the Fe substituted $\mathrm{NdCrTi_{5}}$is presented. Phase purity of polycrystalline $\mathrm{NdCr_{0.5}Fe_{0.5}TiO_5}$ prepared by conventional solid-state technique has been confirmed by synchrotron X-ray diffraction (SXRD). [...]
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2019-03-11
11:25
OpenAccess [PUBDB-2019-01434] Journal Article
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Role of antisite disorder, electron-electron correlations, and a surface valence transition in the electronic structure of $\mathrm{CeMnNi_{4}}$
$\mathrm{CeMnNi_{4}}$ exhibits an unusually large spin polarization, but its origin has baffled researchers for more than a decade. We use bulk sensitive hard x-ray photoelectron spectroscopy (HAXPES) and density functional theory based on the Green's function technique to demonstrate the importance of electron-electron correlations of both the Ni 3d (U$_{Ni}$) and Mn 3d (U$_{Mn}$) electrons in explaining the valence band of this multiply correlated material [...]
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2019-03-11
11:18
[PUBDB-2019-01433] Journal Article
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“Sacrificial protection in action!”: ultra-high stability of palladesite mineral towards the oxygen reduction reaction
It is of the utmost importance to design an oxygen reduction electrocatalyst with high durability and good activity for large scale utilization in industry. Although several materials have been developed at the laboratory scale with extremely good activity, the durability of most of these materials is not sufficient enough to scale them up. [...]
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