Výsledky vyhledávání - "Wolfgang Caliebe"

A von Hamos-type hard X-ray spectrometer at the PETRA III beamline P64

Autor: Wolfgang Caliebe, Aleksandr Kalinko, Roland Schoch, Matthias Bauer

Publikováno v: Journal of Synchrotron Radiation
Journal of synchrotron radiation 27(1), 31-36 (2020). doi:10.1107/S1600577519013638

Journal of synchrotron radiation 27(1), 31 - 36 (2020). doi:10.1107/S1600577519013638
The design and performance of the high-resolution wavelength-dispersive multicrystalvon Hamos-type spectrometer at PETRA III beamline P64 aredescribed. Extende

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https://doi.org/10.1107/s1600577519013638

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In vitro SOD-like activity of mono- and di-copper complexes with a phosphonate substituted SALAN-type ligand

Autor: Łukasz Szyrwiel, Paweł Tokarz, László Wojnárovits, Wolfgang Caliebe, Zbigniew Szewczuk, Krisztina J. Kovács, Vadim Murzin, Mari Shimura, József S. Pap, Justyna Brasuń, Inna Szekacs, Aneta Paluch, Robert Horvath, Tünde Tóth, Adam Kubas

Publikováno v: Chemico-Biological Interactions. 306:78-88

SALEN- and SALAN-based complexes with catalytically active metal centers are very promising small molecules to be utilized as part of antioxidant therapies. Here we discuss a modified SALAN-type molecule armed with two phosphonate groups that signifi

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https://doi.org/10.1016/j.cbi.2019.04.003

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Unusual magnetic ordering transitions in nanoscale biphasic LuFeO3:The role of the ortho-hexa phase ratio and the local structure

Autor: Mandar M. Shirolkar, B. B. Sinha, Smita Chaturvedi, Aleksandr Kalinko, Priyank Shyam, Wolfgang Caliebe, Swathi Krishna S, Gopalan Srinivasan, Satishchandra Ogale

Publikováno v: Chaturvedi, S, Shyam, P, Shirolkar, M M, Krishna S, S, Sinha, B, Caliebe, W, Kalinko, A, Srinivasan, G & Ogale, S 2020, ' Unusual magnetic ordering transitions in nanoscale biphasic LuFeO 3 : The role of the ortho-hexa phase ratio and the local structure ', Journal of Materials Chemistry C, vol. 8, no. 47, pp. 17000-17008 . https://doi.org/10.1039/d0tc02991b

Understanding nanoscale ferromagnetism is becoming increasingly important in view of our enhanced ability to control growth and morphological features of complex nano-systems and their potential translation into emergent high density magnetic device

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https://pure.au.dk/portal/da/publications/unusual-magnetic-ordering-transitions-in-nanoscale-biphasic-lufeo3(5c7a8841-53ad-4f38-b244-d7033e834789).html

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Operando X-ray Absorption Spectroscopy (XAS) Observation of Photoinduced Oxidation in FeNi (Oxy)hydroxide Overlayers on Hematite ($α$-Fe$_{2}$O$_{3}$) Photoanodes for Solar Water Splitting

Autor: Alberto Naldoni, Anton Tsyganok, Vadim Murzin, Alessandro Minguzzi, David S. Ellis, Paolo Ghigna, Avner Rothschild, Wolfgang Caliebe

Publikováno v: Langmuir
Langmuir 36(39), 11564-11572 (2020). doi:10.1021/acs.langmuir.0c02065

Langmuir 36(39), 11564-11572 (2020). doi:10.1021/acs.langmuir.0c02065
An FeNi (oxy)hydroxide cocatalyst overlayer was photoelectrochemically deposited on a thin-film hematite ($α$-Fe$_2$O$_3$) photoanode, leading to a cathodic shift of ∼100 m

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X-ray absorption spectroscopy study of cobalt mononitride thin films

Autor: Wolfgang Caliebe, Mukul Gupta, Nidhi Pandey, Akhil Tayal, Jochen Stahn, Yogesh Kumar

Publikováno v: SN Applied Sciences. 2

We present a comprehensive study to resolve the debate about the structure of cobalt mononitride (CoN). In contradiction with theoretical predictions, experimentally CoN has been claimed to synthesize in a rock-salt (RS) and in a zinc-blende (ZB)-typ

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https://doi.org/10.1007/s42452-019-1808-2

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Study of carbon doped cobalt mononitride thin films

Autor: Akhil Tayal, Wolfgang Caliebe, Mukul Gupta, Yogesh Kumar

Publikováno v: Applied surface science 564, 150443 (2021). doi:10.1016/j.apsusc.2021.150443

Applied surface science 564, 150443 (2021). doi:10.1016/j.apsusc.2021.150443
In this work, we address the issue of N diffusion in cobalt mononitride (CoN) thin films. The diffusivity of N in CoN is the highest among 3-transition metal nitrides,

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https://doi.org/10.1016/j.apsusc.2021.150443

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Akademický článek

Structural Characterization of the Transient Amorphous Calcium Carbonate Precursor Phase in Sea Urchin EmbryosWe thank Prof. Matthias Epple and Dr. Alexander Becker for their valuable assistance; Wolfgang Caliebe from the NSLS beam line X19 at BNL for providing technical support; Prof. Aldo Shemesh and Dr. Ruth Yam for the mass spectrometer determinations; and Prof. Muki Spiegel, Sharon Marziano, and Hamutal Krugoliac from the Israel Oceanographic and Limnological Research for providing fertile sea urchins. We thank the Kimmelman Center for Biomolecular Structure and Assembly, Weizmann Institute, for financial support. F. W. is grateful to support of the National Institutes of Health and the National Science Foundation (USA). L. A. is the incumbent of the Dorothy and Patrick Gorman professorial chair of Biological Ultrastructure, and S. W. is the incumbent of the Dr. Walter and Dr. Trude Burchardt professorial chair of Structural Biology. I. S. is the incumbent of the Pontecorvo profes

Autor: Y. Politi, Y. Levi-Kalisman, S. Raz, F. Wilt, L. Addadi, S. Weiner, I. Sagi

Publikováno v: Advanced Functional Materials; Jul2006, Vol. 16 Issue 10, p1289-1298, 10p

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Study of Structural & Magnetic Properties of CoN Thin Films

Autor: Jochen Stahn, Wolfgang Caliebe, Mukul Gupta, Akhil Tayal, Nidhi Pandey, Yogesh Kumar

Precise determination of structure of CoN has been achieved combining x-ray diffraction, x-ray absorption spectroscopy measurements and theoretical simulations both at Co and N K-edges and magnetization measurements.

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https://doi.org/10.26434/chemrxiv.8267450.v1

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High-flux XAFS-beamline P64 at PETRA III

Autor: Marcel Görlitz, Aleksandr Kalinko, Vadim Murzin, Wolfgang Caliebe

Publikováno v: AIP conference proceedings 2054, 060031 (2019). doi:10.1063/1.5084662
Proceedings of the 13th International Conference on Synchrotron Radiation Instrumentation, SRI2018, Taipei, Taiwan, 2018-06-10-2018-06-15

Proceedings of the 13th International Conference on Synchrotron Radiation Instrumentation, SRI2018, Taipei, Taiwan, 10 Jun 2018 - 15 Jun 2018; AIP conference proceedings 2054, 060031 (2019). doi:10.1063/1.5084662
Beamline P64 at PETRA III is ded

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Fast EXAFS in synchronous scanning mode at PETRA P06

Autor: Gerd Wellenreuther, Edmund Welter, Wolfgang Caliebe, Gerald Falkenberg, Roman Chernikov

Publikováno v: Journal of physics / Conference Series 712, 012020-(2016). doi:10.1088/1742-6596/712/1/012020

First fast EXAFS spectra have been successfully measured at the Hard X-ray Micro-probe Beamline P06 (PETRA III) synchronously scanning the U32 undulator gap and the monochromator Bragg axis. Stability and spatial homogeneity of the beam are proved to

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https://doi.org/10.1088/1742-6596/712/1/012020

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