Megahertz-rate Ultrafast X-ray Scattering and Holographic Imaging at the European XFEL

Autor: Hagström, Nanna Zhou, Schneider, Michael, Kerber, Nico, Yaroslavtsev, Alexander, Parra, Erick Burgos, Beg, Marijan, Lang, Martin, Günther, Christian M., Seng, Boris, Kammerbauer, Fabian, Popescu, Horia, Pancaldi, Matteo, Neeraj, Kumar, Polley, Debanjan, Jangid, Rahul, Hrkac, Stjepan B., Patel, Sheena K. K., Ovcharenko, Sergei, Turenne, Diego, Ksenzov, Dmitriy, Boeglin, Christine, Pronin, Igor, Baidakova, Marina, Schmising, Clemens von Korff, Borchert, Martin, Vodungbo, Boris, Chen, Kai, Luo, Chen, Radu, Florin, Müller, Leonard, Flórez, Miriam Martínez, Philippi-Kobs, André, Riepp, Matthias, Roseker, Wojciech, Grübel, Gerhard, Carley, Robert, Schlappa, Justine, Van Kuiken, Benjamin, Gort, Rafael, Mercadier, Laurent, Agarwal, Naman, Guyader, Loïc Le, Mercurio, Giuseppe, Teichmann, Martin, Delitz, Jan Torben, Reich, Alexander, Broers, Carsten, Hickin, David, Deiter, Carsten, Moore, James, Rompotis, Dimitrios, Wang, Jinxiong, Kane, Daniel, Venkatesan, Sandhya, Meier, Joachim, Pallas, Florent, Jezynski, Tomasz, Lederer, Maximilian, Boukhelef, Djelloul, Szuba, Janusz, Wrona, Krzysztof, Hauf, Steffen, Zhu, Jun, Bergemann, Martin, Kamil, Ebad, Kluyver, Thomas, Rosca, Robert, Spirzewski, Michał, Kuster, Markus, Turcato, Monica, Lomidze, David, Samartsev, Andrey, Engelke, Jan, Porro, Matteo, Maffessanti, Stefano, Hansen, Karsten, Erdinger, Florian, Fischer, Peter, Fiorini, Carlo, Castoldi, Andrea, Manghisoni, Massimo, Wunderer, Cornelia Beatrix, Fullerton, Eric E., Shpyrko, Oleg G., Gutt, Christian, Sanchez-Hanke, Cecilia, Dürr, Hermann A., Iacocca, Ezio, Nembach, Hans T., Keller, Mark W., Shaw, Justin M., Silva, Thomas J., Kukreja, Roopali, Fangohr, Hans, Eisebitt, Stefan, Kläui, Mathias, Jaouen, Nicolas, Scherz, Andreas, Bonetti, Stefano, Jal, Emmanuelle

Publikováno v: J. Synchrotron Rad. (2022), 29

The advent of X-ray free-electron lasers (XFELs) has revolutionized fundamental science, from atomic to condensed matter physics, from chemistry to biology, giving researchers access to X-rays with unprecedented brightness, coherence, and pulse durat

Externí odkaz: http://arxiv.org/abs/2201.06350

Near-Unity Spin Hall Ratio in Ni$_x$Cu$_{1-x}$ Alloys

Autor: Keller, Mark W., Gerace, Katy S., Arora, Monika, Delczeg-Czirjak, Erna Krisztina, Shaw, Justin M., Silva, T. J.

Publikováno v: Phys. Rev. B 99, 214411 (2019)

We report a large spin Hall effect in the 3$d$ transition metal alloy Ni$_x$Cu$_{1-x}$ for $x\in\left\{ 0.3,0.75\right\} $, detected via the ferromagnetic resonance of a Permalloy (Py = Ni$_{80}$Fe$_{20}$) film deposited in a bilayer with the alloy.

Externí odkaz: http://arxiv.org/abs/1903.00910

Suppression of Spin Pumping Between Ni$_{80}$Fe$_{20}$ and Cu by a Graphene Interlayer

Autor: Gannett, Will, Keller, Mark W., Nembach, Hans T., Silva, Thomas J., Debay, Ann Chiaramonti

We compare ferromagnetic resonance measurements of Permalloy Ni$_{80}$Fe$_{20}$ (Py) films sputtered onto Cu(111) films with and without a graphene (Gr) interlayer grown by chemical vapor deposition before Py deposition. A two-angle sputtering method

Externí odkaz: http://arxiv.org/abs/1503.08777

Giant Secondary Grain Growth in Cu Films on Sapphire

Autor: Miller, David L., Keller, Mark W., Shaw, Justin M., Rice, Katherine P., Keller, Robert R., Diederichsen, Kyle M.

Single crystal metal films on insulating substrates are attractive for microelectronics and other applications, but they are difficult to achieve on macroscopic length scales. The conventional approach to obtaining such films is epitaxial growth at h

Externí odkaz: http://arxiv.org/abs/1305.5218

Electron Counting Capacitance Standard with an improved five-junction R-pump

Autor: Camarota, Benedetta, Scherer, Hansjoerg, Keller, Mark W, Lotkhov, Sergey V, Willenberg, Gerd-Dietmar, Ahlers, Franz Josef

The Electron Counting Capacitance Standard currently pursued at PTB aims to close the Quantum Metrological Triangle with a final precision of a few parts in 10^7. This paper reports the considerable progress recently achieved with a new generation of

Externí odkaz: http://arxiv.org/abs/1107.1616