Results 71 to 80 of about 2,535,001 (327)

Imaging electronic states on topological semimetals using scanning tunneling microscopy

New Journal of Physics, 2016
Following the intense studies on topological insulators, significant efforts have recently been devoted to the search for gapless topological systems. These materials not only broaden the topological classification of matter but also provide a condensed ...
András Gyenis, Hiroyuki Inoue, Sangjun Jeon, Brian B Zhou, Benjamin E Feldman, Zhijun Wang, Jian Li, Shan Jiang, Quinn D Gibson, Satya K Kushwaha, Jason W Krizan, Ni Ni, Robert J Cava, B Andrei Bernevig, Ali Yazdani   +14 more
doaj   +1 more source

Spin-polarized scanning tunneling microscopy with quantitative insights into magnetic probes

Nano Convergence, 2017
Spin-polarized scanning tunneling microscopy and spectroscopy (spin-STM/S) have been successfully applied to magnetic characterizations of individual nanostructures. Spin-STM/S is often performed in magnetic fields of up to some Tesla, which may strongly
Soo-hyon Phark, Dirk Sander
doaj   +1 more source

Networks of ABA and ABC stacked graphene on mica observed by scanning tunneling microscopy [PDF]

, 2012
Graphene flakes are prepared on freshly cleaved mica by exfoliation and studied by scanning tunneling microscopy in ultra high vacuum. On few-layer graphene, a triangular network of partial dislocations separating ABC stacked and ABA stacked graphene was
Silke Hattendorf, A. Georgi, M. Liebmann, M. Morgenstern   +3 more
semanticscholar   +1 more source

Adsorption of enantiomeric and racemic tyrosine on Cu(111): A scanning tunneling microscopy study

, 2003
The adsorption of enantiomers and a racemic mixture of tyrosine (tyr) on Cu(111) has been investigated by cyclic voltammetry and electrochemical scanning tunneling microscopy. D-tyr and L-tyr molecules adsorb on Cu(111) and show a (4 x 4) structure.
Xu QM, Wan LJ, 靳刚, Wang D, Bai CL, Wan, LJ (reprint author), Chinese Acad Sci, Inst Chem, Beijing 100080, Peoples R China.   +5 more
core   +1 more source

Stabilization of Strongly Reduced Fe(I) Single Atom Species Coordinated in a 2D Self‐Assembled Metal–Organic Network

Advanced Functional Materials, EarlyView.
A graphene‐supported 2D metal–organic network stabilizes highly reactive Fe(I)‐N4 single sites through Co‐induced charge redistribution. Combined experiments and theory reveal Fe(I) formation, oxygen‐driven oxidation, and O2 activation mechanisms, offering a strategy to access low‐valent iron centers relevant to catalytic and biological processes ...
Alessandro Namar, Basant Roondhe, Michela De Col, Stefania Baronio, Matteo Jugovac, Mattia Scardamaglia, Eleanor Frampton, Nikolay Vinogradov, Paolo Giannozzi, Erik Vesselli   +9 more
wiley   +1 more source

Scanning tunneling microscopy.

Bulletin of the Japan Institute of Metals, 1986
The scanning tunneling microscope (STM)-developed by Binnig and Rohrer-has recently appeared as a new instrument for surface structure investigations with atomic resolution. This chapter is intended to give a general overview of the current status of the STM and to illustrate its potential and performance with typical examples, supplemented by an ...
Sakurai, Toshio, Kobayashi, Akiko, Sakai, Akira   +2 more
openaire   +4 more sources

Multidimensional‐Encoded High‐Fidelity Spectrometers With a Floating‐Base Bipolar Junction

Advanced Functional Materials, EarlyView.
A floating‐base bipolar junction photodetector enables multidimensional spectral encoding through synergistic gate‐ and drain‐bias modulation of interfacial barrier matching. The resulting complementary spectral responses form a diverse, weakly correlated response matrix, enabling robust and high‐fidelity spectral reconstruction even at sub‐nanoampere ...
Sang‐Hyeon Lee, Junho Min, Yonas Tsegaye Megra, Min‐Hye Jeong, Hwi Je Woo, Jaewon Han, Junheon Ha, Gyunghyun Jang, Young Jae Song, Hyun‐Soo Ra, Hoon Hahn Yoon, Jong‐Soo Lee   +11 more
wiley   +1 more source

Towards Laterally Resolved Ferromagnetic Resonance with Spin-Polarized Scanning Tunneling Microscopy

Nanomaterials, 2019
We used a homodyne detection to investigate the gyration of magnetic vortex cores in Fe islands on W(110) with spin-polarized scanning tunneling microscopy at liquid helium temperatures.
Marie Hervé, Moritz Peter, Timofey Balashov, Wulf Wulfhekel   +3 more
doaj   +1 more source

Insulating‐Passivating Interfaces for Narrow‐Bandgap Tin‐Lead Perovskites Enable High‐Photovoltage in Single‐ and Double‐Junction Solar Cells

Advanced Functional Materials, EarlyView.
Combining field‐effect surface passivation of a narrow‐bandgap tin–lead perovskite by diammonium ions with introducing oleyl‐based amphiphiles to create insulating interface layers between the absorber and the adjacent hole and electron transporting layers increases the open‐circuit voltage to 91.5% of the detailed‐balance limit and enhances the power ...
Vishnu Vijayakumar, Christ H. L. Weijtens, Laura Bellini, Nick R. M. Schipper, Isabella Taupitz, Maxim Simmonds, Johannes C. Lambooij, Anuja Vijayan, Lana M. Kessels, Simon V. Quiroz Monnens, Guus J. W. Aalbers, Willemijn H. M. Remmerswaal, Stefan C. J. Meskers, Shuaifeng Hu, Junke Wang, Martijn M. Wienk, Henry J. Snaith, Steve Albrecht, René A. J. Janssen   +18 more
wiley   +1 more source

Apparent tunneling barrier height and local work function of atomic arrays

Beilstein Journal of Nanotechnology, 2018
Spatially resolved measurements of the apparent tunneling barrier height Φapp in scanning tunneling microscopy have been used to estimate variations of the local work function Φ of surface structures.
Neda Noei, Alexander Weismann, Richard Berndt   +2 more
doaj   +1 more source