Results 91 to 100 of about 48,204 (247)

Protective capping of topological surface states of intrinsically insulating Bi$_2$Te$_3$

, 2015
We have identified epitaxially grown elemental Te as a capping material that is suited to protect the topological surface states of intrinsically insulating Bi$_2$Te$_3$.
Becker, Christoph, Höfer, Katharina, Tjeng, Liu Hao, Wirth, Steffen   +3 more
core   +2 more sources

Development of Laterally Graded X‐Ray Multilayer Optics

Advanced Materials Technologies, EarlyView.
This work presents the development of laterally graded X‐ray multilayer optics with both constant and variable lateral gradients. By precisely controlling substrate speed profiles and mask design, these multilayers achieve highly accurate lateral gradients and excellent sagittal thickness uniformity, making them ideal for spectroscopy application at ...
Arindam Majhi, Wadwan Singhapong, Wai Jue Tan, Andrey Sokolov, Stefano Agrestini, Mirian Garcia‐Fernandez, Kejin Zhou, Andrew C. Walters, Chris Bowen, Alexander J.G. Lunt, Hongchang Wang, Kawal J. Sawhney   +11 more
wiley   +1 more source

A Free N‐Heterocyclic Carbene and Its Metal Complex

Angewandte Chemie, EarlyView.
Free N‐heterocyclic carbenes (NHCs) are directly visualized on ultrathin sodium‐chloride films on gold (NaCl/Au(111)) using scanning tunneling microscopy (STM), atomic force microscopy (AFM), and density functional theory (DFT). Submolecular imaging reveals their structure and frontier orbital.
Ankita Das, Tzu‐Chao Hung, Andreas Rank, Felix Giselbrecht, Jonas Schön, Mowpriya Das, Nikos Doltsinis, Saeed Amirjalayer, Jascha Repp, Frank Glorius   +9 more
wiley   +2 more sources

Scanning tunneling microscopy and spectroscopy studies of graphite edges

, 2005
We studied experimentally and theoretically the electronic local density of states (LDOS) near single step edges at the surface of exfoliated graphite. In scanning tunneling microscopy measurements, we observed the $(\sqrt{3} \times \sqrt{3}) R 30^{\circ}
Birgeneau, Elstner, Esquinazi, Fujita, Fujita, Giunta, H. Kambara, Hiroshi Fukuyama, K. Tagami, Kaneko, Klusek, Klusek, M. Tsukada, Matsui, Matsui, Miyamoto, Nakada, Niimi, T. Matsui, Tai, Y. Niimi   +20 more
core   +1 more source

UHV Electron Beam Evaporator

SHINKU, 1967
New UHV evaporator with electron gun has been designed for a broad range of substrate temperature and deposition rate. While the pressure is ultimately 5×10-10 torr by using a nude B-A gage, it falls down to 5×10-8 torr during evaporation of Nb. The electron beam gun has a tele-focus type and a full power of 50 kV 20 mA, and is valid in evaporation of ...
Hiroshi NOSE, Yuji ASADA, Tadami TAOKA, Zenjiro ODA, Hideo KURODA   +4 more
openaire   +2 more sources

Electronic Structure Reorganization in MPS3 via d‐Shell‐Selective Alkali Metal Doping

Advanced Science, EarlyView.
Alkali metal doping of layered MPS3 antiferromagnets reveals d‐shell‐selective responses. While MnPS3 resists charge transfer due to its half‐filled 3d5 shell, FePS3 and NiPS3 behave similarly to CoPS3 by accommodating extra d‐electrons. Yet only CoPS3, with its least stable d‐shell, undergoes pronounced band restructuring and a semiconducting‐to ...
Jonah Elias Nitschke, Preeti Bhumla, Till Willershausen, Patrick Merisescu, David Maximilian Janas, Lasse Sternemann, Michael Gutnikov, Karl Schiller, Valentin Mischke, Michele Capra, Mira Sophie Arndt, Silvana Botti, Mirko Cinchetti   +12 more
wiley   +1 more source

First Principles Modeling of the Initial Stages of Organic Solvent Decomposition on Li(x)Mn(2)O(4) (100) Surfaces

, 2012
Density functional theory and ab initio molecular dynamics simulations are applied to investigate the initial steps of ethylene carbonate (EC) decomposition on spinel Li(0.6)Mn(2)O(4) (100) surfaces.
Leung, Kevin
core   +1 more source

Borophene: Crucial Challenges and the Way Forward

Advanced Science, EarlyView.
This review explores the challenges and progress in borophene research, focusing on synthesis strategies, structural properties, and potential applications. It highlights key experimental breakthroughs, discusses theoretical insights into borophene's unique features, and addresses pathways for overcoming stability and scalability issues.
Zhixuan Li, Jeyaraman Sankar, Prashant Kumar, Ajayan Vinu   +3 more
wiley   +1 more source

Cryogenic Ion Trapping Systems with Surface-Electrode Traps

, 2008
We present two simple cryogenic RF ion trap systems in which cryogenic temperatures and ultra high vacuum pressures can be reached in as little as 12 hours.
Chiaverini J., D. Schuster, G. M. Akselrod, I. L. Chuang, J. Labaziewicz, Leibrandt D., Lide D. R., March R. E., P. B. Antohi, W. S. Bakr, Y. Ge, Z. Lin   +11 more
core   +1 more source

Basal Plane Activation of SnS2 Thin‐Film by Fluorine Doping for Selective Solar‐Driven CO2 Reduction With Enhanced Quantum Efficiency

Advanced Science, EarlyView.
The synergistic effect of fluorine doping and sulfur vacancies boosts the activity of the active sites without active‐site modulation, leading to enhanced CO2 photoreduction efficiency and a selectivity switch from CH4 to CO on tin disulfide continuous thin films. ABSTRACT Photocatalytic conversion of CO2 into value‐added fuels offers a viable approach
Tadios Tesfaye Mamo, Mohammad Qorbani, Adane Gebresilassie Hailemariam, Putikam Raghunath, Che‐Men Chu, Wen‐Hsin Yuan, Amr Sabbah, Yen‐Yu Wang, Shuo‐Yun Chang, Ming‐Chang Lin, Wei‐Yen Woon, Yu‐Jung Lu, Heng‐Liang Wu, Ken‐Tsung Wong, Kuei‐Hsien Chen, Li‐Chyong Chen   +15 more
wiley   +1 more source