Results 61 to 70 of about 33,751 (272)

A multi-modal microscope for integrated mapping of cellular forces and Brillouin scattering with high resolution

JPhys Photonics
Mechanical forces and stiffness play key roles in the health and development of cells and tissue, but despite the physical connection between these quantities, they cannot be monitored in parallel in most cases.
Andrew T Meek, Franziska Busse, Nils M Kronenberg, San Vinh Dinh, Kim V Berghaus, Jonathan H Booth, Giuliano Scarcelli, Malte C Gather   +7 more
doaj   +1 more source

Domain wall-based spin-Hall nano-oscillators

, 2018
In the last decade, two revolutionary concepts in nano magnetism emerged from research for storage technologies and advanced information processing. The first suggests the use of magnetic domain walls (DWs) in ferromagnetic nanowires to permanently store
Arekapudi, S. S. P. K., Awad, A. A., Fassbender, J., Hellwig, O., Körber, L., Mühl, T., Puwenberg, N., Sato, N., Schultheiss, H., Schultheiss, K.   +9 more
core   +1 more source

Surface and electronic structure of MOCVD-grown Ga(0.92)In(0.08)N investigated by UV and X-ray photoelectron spectroscopies [PDF]

, 2004
The surface and electronic structure of MOCVD-grown layers of Ga(0.92)In(0.08)N have been investigated by means of photoemission. An additional feature at the valence band edge, which can be ascribed to the presence of In in the layer, has been revealed.
B.A. Orlowski, B.J. Kowalski, Beach, Bellaiche, Bermudez, Bermudez, Butcher, Carin, Chen, Chen, Dhesi, Ding, E. Lusakowska, F. Mirabella, Grzegory, Guo, Hunt, I. Grzegory, I.A. Kowalik, J. Ghijsen, J. Kanski, J. Sadowski, Kowalski, Kowalski, Leszczynski, M. Leszczynski, Maruyama, McCluskey, Moulder, Nakamura, Nakamura, O'Donnell, Osamura, P. Perlin, Parker, Pearton, Pereira, Pereira, Perlin, Plucinski, Prabhakaran, Pugh, R.J. Iwanowski, Ryan, S. Porowski, Strasser, Teles, Van de Walle, Vogel, Wang, Watkins, Wetzel, Wright   +52 more
core   +1 more source

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

Scanning tunneling microscopy of surfaces of half-metals: an ab-initio study on NiMnSb(001)

, 2005
We present a first-principles study of the unreconstructed (001) surfaces of the half-metallic ferromagnet NiMnSb. Both terminations (MnSb and Ni) are considered. We find that half-metallicity is lost at the surfaces.
Bihlmayer, Gustav, Blügel, Stefan, Ležaić, Marjana, Mavropoulos, Phivos   +3 more
core   +1 more source

Mechanistic Insights into a Synergistic FeOx/Fe‐N4 System for Practical Nitrate Abatement with Value‐Added Ammonia Recovery

Advanced Functional Materials, EarlyView.
This work provides a novel interpretation of the nitrate reduction mechanism on iron oxides (FeOx) by employing constant‐potential density functional calculations and reports the design and synthesis of a robust and high‐performance Fe3O4/Fe‐N4‐C catalyst with remarkable Faradaic efficiency, current density, and stability under practical reaction ...
Qiang Zhou, Hongzhi Liu, Shenglin Liu, Yuwei Liu, Mamiko Nakabayashi, Yunlong Xie, Naoya Shibata, Feng Gong, Jean‐Jacques Delaunay   +8 more
wiley   +1 more source

Making ARPES Measurements on Corrugated Monolayer Crystals: Suspended Exfoliated Single-Crystal Graphene

, 2011
Free-standing exfoliated monolayer graphene is an ultra-thin flexible membrane, which exhibits out of plane deformation or corrugation. In this paper, a technique is described to measure the band structure of such free-standing graphene by angle-resolved
Alberto Morgante, Andrea Locatelli, Dean Cvetko, H. Yang, Kevin R. Knox, Mehmet B. Yilmaz, Miguel Ángel Niño, Philip Kim, Richard M. Osgood, S. Hüfner, Tevfik Onur Menteş   +10 more
core   +1 more source

Dirac fermions and flat bands in the ideal kagome metal FeSn. [PDF]

, 2019
A kagome lattice of 3d transition metal ions is a versatile platform for correlated topological phases hosting symmetry-protected electronic excitations and magnetic ground states.
Bell, David C, Bostwick, Aaron, Chan, Mun K, Checkelsky, Joseph G, Comin, Riccardo, Facio, Jorge I, Fang, Shiang, Graf, David, Han, Minyong, Jozwiak, Chris, Kang, Mingu, Kaxiras, Efthimios, Kaznatcheev, Konstantine, Levitan, Abe, McDonald, Ross D, Prasad Ghimire, Madhav, Richter, Manuel, Rotenberg, Eli, van den Brink, Jeroen, Vescovo, Elio, Ye, Linda, You, Jhih-Shih   +21 more
core   +3 more sources

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

Advanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian, Amit Sharma, Krzysztof Wieczerzak, Alexander Groetsch, Manish Jain, Nicolò Maria della Ventura, Remo Widmer, Fedor F. Klimashin, Johann Michler, Jakob Schwiedrzik, Xavier Maeder   +10 more
wiley   +1 more source

Exploring the biomechanical complexity of glioblastoma spheroids and organoids with co-localized Brillouin and Raman microspectroscopy

Biochemistry and Biophysics Reports
Brillouin microscopy allows mechanical investigations of biological materials at the subcellular level and can be integrated with Raman spectroscopy for simultaneous chemical mapping, thus enabling a more comprehensive interpretation of biomechanics. The
Roberta Galli, Jan Rix, Tina Leonidou, Katrin Kirsche, Edmund Koch, Achim Temme, Ilker Y. Eyüpoglu, Ortrud Uckermann   +7 more
doaj   +1 more source