Results 91 to 100 of about 1,945,862 (288)

Ferrocene‐Based Self‐Assembled Monolayers Enable Ultra‐High Specific Detectivity in Perovskite Photodetectors

Advanced Materials, EarlyView.
We report perovskite photodetectors with record specific detectivities exceeding 1013 Jones with a novel molecular design strategy to functionalize self‐assembled monolayers (SAMs) with ferrocene (Fc) derivatives. Fc‐SAM‐based devices also exhibit strong operational stability and enable data transmission rates exceeding 1 Mbps in a LiFi system ...
Edoardo Angela, William D. J. Tremlett, Francesco Vanin, William J. O. Rodriguez Kazeem, Zhuoran Qiao, Davide Nodari, Francesco Furlan, Zonglong Zhu, Martyn A. McLachlan, Nicholas J. Long, Nicola Gasparini   +10 more
wiley   +1 more source

Plasmon‐Enhanced Second‐Harmonic Generation in Atomically Thin Crystalline Silver Nanostructures

Advanced Materials, EarlyView.
Atomically thin crystalline silver films combine vertical quantum confinement with lateral plasmonic field enhancement to boost second‐harmonic generation. Nanoribbon and nanotriangle arrays enable geometry‐tunable infrared plasmon resonances, producing strong SHG from deeply subwavelength metallic volumes compatible with silicon‐based nanophotonics ...
Saad Abdullah, Philipp K. Jenke, Andrew P. Weber, Álvaro Rodríguez Echarri, Vahagn Mkhitaryan, Fadil Iyikanat, Frederik Schiller, Philip Walther, J. Enrique Ortega, Lee A. Rozema, F. Javier García de Abajo   +10 more
wiley   +1 more source

Scanning Tunneling Microscopy

Hyomen Kagaku, 1984
A new technique developed by Binning, Rohrer, Gerber and Weibel on scanning tunneling micro scopy (STM) is presented. STM gives surface topographies in real space and work function profiles on an atomic scale. The spatial resolution of STM is sub-A in depth and several A in lateral direction.
openaire   +2 more sources

Robust Spin Splitting and Fermiology in the Layered Altermagnet CoNb4${\rm CoNb}_4$Se8${\rm Se}_8$

Advanced Materials, EarlyView.
The emergence of an altermagnetic phase is demonstrated in the cobalt‐intercalated superconducting 2H‐NbSe2 polymorph. A combined theoretical and experimental approach directly probes the magnetism, the altermagnetic lifting of Kramers degeneracy, and the electronic phase space, establishing CoNb4Se8 as the first g‐wave altermagnetic layered material ...
Alessandro De Vita, Chiara Bigi, Davide Romanin, Matthew D. Watson, Vincent Polewczyk, Marta Zonno, François Bertran, Pietro M. Forcella, My Bang Petersen, Federico Motti, Giovanni Vinai, Manuel Tuniz, Federico Cilento, Mario Cuoco, Brian M. Andersen, Andreas Kreisel, Luciano Jacopo D'Onofrio, Oliver J. Clark, Mark T. Edmonds, Christopher Candelora, Muxian Xu, Siyu Cheng, Alexander LaFleur, Tommaso Antonelli, Giorgio Sangiovanni, Lorenzo Del Re, Ivana Vobornik, Jun Fujii, Fabio Miletto Granozio, Alessia Sambri, Emiliano Di Gennaro, Jeppe B. Jacobsen, Henrik Jacobsen, Iulia Cojocariu, Marcin Szpytma, Andrea Locatelli, Tevfik Mentes, Won Seop Song, Jun Sung Kim, Matthieu Jamet, Jean‐François Jacquot, Pasquale Orgiani, Ralph Ernstorfer, Ilija Zeljkovic, Younghun Hwang, Matteo Calandra, Jill A. Miwa, Federico Mazzola   +47 more
wiley   +1 more source

Polaron-Driven Surface Reconstructions

Physical Review X, 2017
Geometric and electronic surface reconstructions determine the physical and chemical properties of surfaces and, consequently, their functionality in applications.
Michele Reticcioli, Martin Setvin, Xianfeng Hao, Peter Flauger, Georg Kresse, Michael Schmid, Ulrike Diebold, Cesare Franchini   +7 more
doaj   +1 more source

FRACTAL STRUCTURE OF TITANIUM NITRITE DEPOSITED ON STAINLESS STEEL SUBSTRATE

Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2014
On the basis of images obtained using scanning tunneling microscope, it was shown that the fractal dimension can be considered as some universal surface characteristic of the titanium nitrite, deposited on stainless steel.
Yu..V. Brylkin
doaj   +1 more source

Synthesis of Bulk Superconducting LiNbO2 Crystals Through CaH2 Reduction

Advanced Materials, EarlyView.
CaH2 reduction reconstructively transforms insulating LiNbO3 single crystals into superconducting bulk LiNbO2 with a critical temperature of Tc = 14.4 K. Scanning electron microscopy reveals large‐volume, high‐yield phase conversion. Magnetization measurements demonstrate a robust ∼ 77% Meissner shielding fraction, establishing bulk superconductivity ...
Ryan Paxson, Stephanie J. Hong, Bicky S. Moirangthem, Parham Kabirifar, Saya Takeuchi, Tianyu Li, Chih‐Yu Lee, Haotong Liang, Keenan Avers, Kamal R. Joshi, Amlan Datta, Makariy A. Tanatar, Shanta Saha, Joseph A. Dura, Peter Zavalij, Johnpierre Paglione, Ruslan Prozorov, Alexander J. Grutter, Efrain E. Rodriguez, Ichiro Takeuchi   +19 more
wiley   +1 more source

Atomic Force Microscopy Application in Biological Research: A Review Study

Iranian Journal of Medical Sciences, 2013
Atomic force microscopy (AFM) is a three-dimensional topographic technique with a high atomic resolution to measure surface roughness. AFM is a kind of scanning probe microscope, and its near-field technique is based on the interaction between a sharp ...
Surena Vahabi, Bahareh Nazemi Salman, Anahita Javanmard   +2 more
doaj  

Characterization of tips for spin-polarized scanning tunneling microscopy

, 2009
International audienceWe propose a conclusive characterization of the magnetic configuration of tips for spin-polarized scanning tunneling microscopy studies.
D. Sander, Rodary, Guillemin, Oka, H., Wedekind, S., J. Kirschner, Kirschner, J., G. Rodary, Sander, D., S. Wedekind, H. Oka   +9 more
core   +1 more source

Quantification of Magnetic Interactions in van der Waals Heterostructures Using Lorentz Transmission Electron Microscopy and Off‐Axis Electron Holography

Advanced Materials, EarlyView.
Cross‐sectional Lorentz TEM and off‐axis electron holography visualize the magnetic domain structure and quantify interlayer coupling in Fe3GeTe2/graphite/Fe3GeTe2 heterostructures. A stray‐field coupling length of 37±$\pm$7 nm marks the onset of domain misalignment between the layers.
Joachim Dahl Thomsen, Qianqian Lan, Nikolai S. Kiselev, Eva Duft, Arslan Rehmat, Zdeněk Sofer, Rafal E. Dunin‐Borkowski   +6 more
wiley   +1 more source