Zobrazeno 1 - 10
of 260
pro vyhledávání: '"Martins, Michael"'
Metal nitrides possess exceptional catalytic, electronic and physical properties making them widely used in (opto-)electronics and as hard coatings. When used as films in surface-active applications, however, their performance remains limited by poor
Externí odkaz:
http://arxiv.org/abs/2410.21423
Autor:
Corrales, Lia, Gotthelf, Eric V., Gatuzz, Efrain, Kallman, Timothy R., Lee, Julia C., Martins, Michael, Paerels, Frits, Psaradaki, Ioanna, Schippers, Stefan, Savin, Daniel Wolf
Publikováno v:
The Astrophysical Journal 965, 172 (2024)
We present a high-resolution spectral study of Fe L-shell extinction by the diffuse interstellar medium (ISM) in the direction of the X-ray binaries Cygnus X-1 and GX 339-4, using the XMM-Newton reflection grating spectrometer. The majority of inters
Externí odkaz:
http://arxiv.org/abs/2402.06726
Autor:
Kumar, Keshav, Mishra, Shrawan K., Singh, Sanjay, Baev, Ivan, Martins, Michael, Orlandi, Fabio, Manuel, Pascal, Pandey, Dhananjai
Publikováno v:
Physica Status Solidi - Rapid Research Letters 15, 2000506 (2021)
The magnetic ground state of BaFe12O19 (BFO) was investigated using X-ray absorption at 1.2 K and 1.5 K, respectively. The XMCD measurements on single-crystals of BFO in grazing incidence geometry reveal the canting of the spins away from the c-axis
Externí odkaz:
http://arxiv.org/abs/2312.12001
Publikováno v:
Chemical Communications 56, 14897-14900 (2020)
We present here the results of low-temperature magnetization and X-ray magnetic circular dichroism studies on single crystals of BaFe12O19 which reveal for the first time the emergence of a spin glass phase, in coexistence with the long-range ordered
Externí odkaz:
http://arxiv.org/abs/2312.11990
Autor:
Palutke, Steffen, Martins, Michael, Klumpp, Stephan, Baev, Karolin, Richter, Mathias, Wagner, Tobias, Kuhlmann, Marion, Ruiz-Lopez, Mabel, Meyer, Michael, Tiedtke, Kai
The dependency on the excitation energy of ultrafast multi-photon ionization of xenon by intense, short extreme ultraviolet pulses (XUV) was investigated in the vicinity of the 4$d$ 'giant' resonance using ion time-of-flight spectroscopy. The yields
Externí odkaz:
http://arxiv.org/abs/2210.11378
Autor:
Schwickert, David, Ruberti, Marco, Kolorenč, Přemys, Usenko, Sergey, Przystawik, Andreas, Baev, Karolin, Baev, Ivan, Braune, Markus, Bocklage, Lars, Czwalinna, Marie Kristin, Deinert, Sascha, Düsterer, Stefan, Hans, Andreas, Hartmann, Gregor, Haunhorst, Christian, Kuhlmann, Marion, Palutke, Steffen, Röhlsberger, Ralf, Rönsch-Schulenburg, Juliane, Schmidt, Philipp, Toleikis, Sven, Viefhaus, Jens, Martins, Michael, Knie, André, Kip, Detlef, Averbukh, Vitali, Marangos, Jon P., Laarmann, Tim
Publikováno v:
Sci. Adv. 8, eabn6848 (2022)
Quantum coherence between electronic states of a photoionized molecule and the resulting process of ultrafast electron-hole migration have been put forward as a possible quantum mechanism of charge-directed reactivity governing the photoionization-in
Externí odkaz:
http://arxiv.org/abs/2012.04852
Autor:
Schippers, Stefan, Beerwerth, Randolf, Bari, Sadia, Buhr, Ticia, Holste, Kristof, Kilcoyne, A. L. David, Perry-Sassmannshausen, Alexander, Phaneuf, Ronald A., Reinwardt, Simon, Savin, Daniel Wolf, Schubert, Kaja, Fritzsche, Stephan, Martins, Michael, Müller, Alfred
Publikováno v:
Astrophys. J. 908 (2021) 52
Using the photon-ion merged-beams technique at a synchrotron light source, we have measured relative cross sections for single and up to five-fold photoionization of Fe$^{2+}$ ions in the energy range 690--920 eV. This range contains thresholds and r
Externí odkaz:
http://arxiv.org/abs/2010.00473
Autor:
Junghoefer, Tobias, Baev, Ivan, Glaser, Mathias, Ciccullo, Francesca, Giangrisostomi, Erika, Ovsyannikov, Ruslan, Kielgast, Fridtjof, Nissen, Matz, Schwarz, Julius, Gallagher, Nolan M., Rajca, Andrzej, Martins, Michael, Calzolari, Arrigo, Casu, Maria Benedetta
Molecular systems are materials that intersect with many different promising fields such as organic/molecular electronics and spintronics, organic magnetism and quantum computing1-7. Particularly, magnetism in organic materials is very intriguing: th
Externí odkaz:
http://arxiv.org/abs/1911.02082
Autor:
Beerwerth, Randolf, Buhr, Ticia, Perry-Saßmannshausen, Alexander, Stock, Sebastian O., Bari, Sadia, Holste, Kristof, Kilcoyne, A. L. David, Reinwardt, Simon, Ricz, Sandor, Savin, Daniel Wolf, Schubert, Kaja, Martins, Michael, Müller, Alfred, Fritzsche, Stephan, Schippers, Stefan
Relative cross sections for $m$-fold photoionization ($m=1,\ldots,5$) of Fe$^{3+}$ by single photon absorption were measured employing the photon-ion merged-beams setup PIPE at the PETRA III synchrotron light source operated at DESY in Hamburg, Germa
Externí odkaz:
http://arxiv.org/abs/1908.05252
Autor:
Trivanovic, Una, Pereira Martins, Michael, Benz, Simon, Kelesidis, Georgios A., Pratsinis, Sotiris E.
Publikováno v:
In Fuel 15 June 2023 342
