Crystal Research and Technology
© WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Editor: Wolfgang Neumann (Editor-in-Chief), Klaus-W. Benz (Consulting Editor)
Online ISSN: 1521-4079
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Recently Published Articles
- Crystal structure, spectroscopic studies and non-linear optical properties of 2-amino-3-nitropyridinium trichloroacetate
Cheng Song, Yuelan Zhou, Zhihua Sun, Tianliang Chen, Shuquan Zhang and Junhua Luo
Article first published online: 24 JUL 2015 | DOI: 10.1002/crat.201500056
A novel quadratic NLO crystal material 2-amino-3-nitropyridinium trichloroacetate is connected by multiple hydrogen bonds. The SHG efficiency is two times that of KDP and useful for frequency converting in visible region which indicate a potential NLO candidate material.
- Synchrotron radiation diffraction study of texture in α-Fe2O3 powder induced by the magnetic field
M. Stȩkiel, R. Przeniosło, M. Duczmal, D. Wardecki and T. Buslaps
Article first published online: 23 JUL 2015 | DOI: 10.1002/crat.201500065
The interaction of the weak ferromagnetic moments of hematite, α-Fe2O3, crystallites with the external dc magnetic field is studied by using synchrotron radiation powder diffraction. The observed angular distribution of the scattered intensities on the Debye-Scherrer rings provide information about the reorientation of the crystallites. A quantitative model of the reorientation process is described. The proposed experimental method gives information which is complementary to powder diffraction, single crystal diffraction and magnetization studies. This method can be used to characterize the weak ferromagnetic states of novel multiferroic materials.
- Single-crystalline gold microplates grown on substrates by solution-phase synthesis
Xiaofei Wu, René Kullock, Enno Krauss and Bert Hecht
Article first published online: 17 JUL 2015 | DOI: 10.1002/crat.201400429
Single-crystalline gold microplates grown directly on substrates by solution-phase synthesis are reported. Substrate-grown microplates exhibit high quality by avoiding small-particle contamination and aggregation. Based on step-growth and observation cycles of gold microplates on substrates, development of thickness, area and shape for a large number of individual microplates is investigated, and the growth mechanism is discussed. The microplate surface is found to remain smooth after regrowth in solution.
- Synthesis of silicon dioxide cone shaped highly ordered hedgehog-like microstructures on gallium droplets
Maciej Bialoglowski, Cezariusz Jastrzebski, Pawel Dominik, Wojciech Gebicki, Daniel J. Jastrzebski and Slawomir Podsiadlo
Article first published online: 17 JUL 2015 | DOI: 10.1002/crat.201500146
Highly ordered SiO2 microstructures were synthesized by chemical transport method. The cone shaped microstructures were self-arranged on spherical surface of gallium droplet. The achieved patterns looks like thorns on a cactus surface or needles on a hedgehog. The structural studies were done on single needles confirming their chemical composition and amorphous structure. This can be a very cheap and interesting way to grow regular structures for micro- and optoelectronics applications.
- The investigation of the structure of bulk metallic glasses before and after laser welding
Article first published online: 16 JUL 2015 | DOI: 10.1002/crat.201400438
In this work the influence of the structure of casted plates on the structure of fusion zone and heat affected zone Fe-based laser welds was observed. If the chemical composition and laser welding parameters are the same for laser weld of amorphous plates and amorphous-crystalline plates the initial structure of welded material has an influence on the crystallization process in the HAZ.