Results 61 to 70 of about 77,080 (261)
Barrier and interface properties of magnetic tunneling junctions studied via electrical transport [PDF]
, 2004 Magnetic tunneling junctions exhibiting a high resistance change with switching of the magnetization of their electrodes have a high application potential for magnetic random access memories (MRAM) and magnetic field sensors.
Stein, Simon
core
Universality of scanning tunneling microscopy in cuprate superconductors
, 2017 We consider the problem of local tunneling into cuprate superconductors, combining model based calculations for the superconducting order parameter with wavefunction information obtained from first principles electronic structure.
Andersen, Brian M. +4 more
core +1 more source
Advanced Functional Materials, EarlyView.Rational halogen mixing strategy was employed to shift the bandgap of Cs2PbBr2I2 from ultraviolet to visible region, enabling first realization of a visible‐light photodetector with this 2D layered Ruddlesden‐Popper perovskite material. Under illumination, light‐induced internal field forms and drives trap‐mediated persistent photoconductivity ...
Md Fahim Al Fattah +11 more
wiley +1 more source
Nanofabricated tips for device-based scanning tunneling microscopy
, 2019 We report on the fabrication and performance of a new kind of tip for scanning tunneling microscopy. By fully incorporating a metallic tip on a silicon chip using modern micromachining and nanofabrication techniques, we realize so-called smart tips and ...
Allan, Milan P. +7 more
core +1 more source
Lithium Intercalation in the Anisotropic Van Der Waals Semiconductor CrSBr
Advanced Functional Materials, EarlyView.We report the lithium intercalation in the layered van der Waals crystal CrSBr, revealing strongly anisotropic ion‐migration dynamics. Optical and electrical characterization of exfoliated CrSBr shows lithium diffusion coefficients that differ by more than an order of magnitude along a‐ and b‐directions, consistent with molecular dynamics simulations ...
Kseniia Mosina +13 more
wiley +1 more source
Versatile scanning tunneling microscopy with 120ps time resolution
, 2013 We describe a fully ultra-high vacuum compatible scanning tunneling microscope (STM) optimized for radio-frequency signals. It includes in-situ exchangeable tips adapted to high frequency cabling and a standard sample holder, which offer access to the ...
Bindel, Jan Raphael +3 more
core +1 more source
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
Surface Diffusion in SnTe‐PbTe Monolayer Lateral Heterostructures
Advanced Functional Materials, EarlyView.The lateral heterostructures between 2D materials often suffer from the interdiffusion at the interfaces. Here, a surface diffusion mechanism is found to be dominating at the interfaces between semiconducting SnTe and PbTe monolayers. Atomically sharp interfaces can be achieved by suppressing this diffusion process. ABSTRACT The construction of complex
Jing‐Rong Ji +9 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 +2 more
doaj +1 more source
Amplifier for scanning tunneling microscopy at MHz frequencies
, 2018 Conventional scanning tunneling microscopy (STM) is limited to a bandwidth of circa 1kHz around DC. Here, we develop, build and test a novel amplifier circuit capable of measuring the tunneling current in the MHz regime while simultaneously performing ...
Allan, M. P. +6 more
core +4 more sources