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The concept of compressive sensing was recently proposed to significantly reduce the electron dose in scanning transmission electron microscopy (STEM) while still maintaining the main features in the image. Here, an experimental setup based…

Instrumentation and Detectors · Physics 2016-03-23 Armand Béché , Bart Goris , Bert Freitag , Jo Verbeeck

We describe the design, construction, and performance of an ultra-high vacuum (UHV) scanning tunneling microscope (STM) capable of imaging at dilution-refrigerator temperatures and equipped with a vector magnet. The primary objective of our…

Instrumentation and Detectors · Physics 2020-02-07 Dillon Wong , Sangjun Jeon , Kevin P. Nuckolls , Myungchul Oh , Simon C. J. Kingsley , Ali Yazdani

Certifying quantum entanglement is a critical step towards realizing quantum-coherent applications of surface spin systems. In this work, we show that entanglement can be unambiguously shown in a scanning tunneling microscope (STM) with…

Mesoscale and Nanoscale Physics · Physics 2024-01-29 Rik Broekhoven , Curie Lee , Soo-hyon Phark , Sander Otte , Christoph Wolf

Theoretical understanding of scanning tunnelling microscope (STM) measurements involve electronic structure details of the STM tip and the sample being measured. Conventionally, the focus has been on the accuracy of the electronic state…

Materials Science · Physics 2021-09-21 Maxwell T. West , Muhammad Usman

Band profiles of electronic devices are of fundamental importance in determining their properties. A technique that can map the band profile of both the interior and edges of a device at the nanometer scale is highly demanded. Conventional…

Mesoscale and Nanoscale Physics · Physics 2020-07-10 Ranran Li , Takashi Taniguchi , Kenji Watanabe , Jiamin Xue

Time resolution is one of the most severe limitations of scanning probe microscopies (SPMs), since the typical image acquisition times are in the order of several seconds or even few minutes. As a consequence, the characterization of…

With the invention of scanning probe techniques, direct imaging of single atoms and molecules became possible. Today, scanning tunnelling microscopy (STM) routinely provides angstrom-scale image resolution. At the same time, however, STM…

Mesoscale and Nanoscale Physics · Physics 2024-01-30 C. Weiss , C. Wagner , C. Kleimann , F. S. Tautz , R. Temirov

Localized spin states in conventional superconductors at low temperatures are expected to have long decoherence time due to the strong suppression of spin relaxation channels. We propose a scanning tunneling microscopy (STM) experiment…

Superconductivity · Physics 2007-05-23 Jurij Smakov , Ivar Martin , Alexander V. Balatsky

We present the design, implementation, and illustrative results of a light collection/injection strategy based on an off-axis parabolic mirror collector for a low-temperature Scanning Tunneling Microscope (STM). This device allows us to…

Spin resonance of single spin centers bears great potential for chemical structure analysis, quantum sensing and quantum coherent manipulation. Essential for these experiments is the presence of a two-level spin system whose energy…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Philip Willke , Aparajita Singha , Xue Zhang , Taner Esat , Christopher P. Lutz , Andreas J. Heinrich , Taeyoung Choi

Nitride-based superconductors represent a family of superconducting thin film materials displaying higher quality than their corresponding bare superconductor when used in devices for applications such as cosmic radiation sensing. In recent…

The sub-nanometer distance between tip and sample in a scanning tunneling microscope (STM) enables the application of very large electric fields with a strength as high as ~ 1 GV/m. This has allowed for efficient electrical driving of Rabi…

Mesoscale and Nanoscale Physics · Physics 2024-01-30 Hong T. Bui , Christoph Wolf , Yu Wang , Masahiro Haze , Arzhang Ardavan , Andreas J. Heinrich , Soo-hyon Phark

We report scanning tunneling microscopy (STM) images of surfaces of GaN films and the observation of luminescence from those films induced by highly spatially localized injection of electrons or holes using STM. This combination of scanning…

Condensed Matter · Physics 2009-10-28 B. Garni , Jian Ma , N. Perkins , Jutong Liu , T. F. Kuech , M. G. Lagally

Electron spin resonance (ESR) spectroscopy in scanning tunneling microscopy (STM) has enabled probing the electronic structure of single magnetic atoms and molecules on surfaces with unprecedented energy resolution, as well as demonstrating…

A scanning tunneling microscope (STM) with a magnetic tip that has a sufficiently strong spin-polarization can be used to map the sample's spin structure down to the atomic scale but usually lacks the possibility to absolutely determine the…

Superconductivity · Physics 2021-04-26 Lucas Schneider , Philip Beck , Jens Wiebe , Roland Wiesendanger

The physical properties of ultrathin NaCl overlayers on the stepped Cu(311) surface have been characterized using scanning tunneling microscopy (STM) and spectroscopy, and density functional calculations. Simulations of STM images and…

Materials Science · Physics 2009-11-10 F. E. Olsson , M. Persson , J. Repp , G. Meyer

The integration of scanning tunneling microscopy (STM) and electron spin resonance (ESR) spectroscopy has emerged as a powerful and innovative tool for discerning spin excitations and spin-spin interactions within atoms and molecules…

Mesoscale and Nanoscale Physics · Physics 2024-11-04 Lyuzhou Ye , Xiao Zheng , Xin Xu

We report the design and fabrication of guiding patterns for topography-based searching of two-dimensional (2D) devices for scanning tunneling microscopy (STM) measurements. Sub-micron geometric coordinate markers were etched into SiO2/Si…

Strongly Correlated Electrons · Physics 2026-01-28 Huandong Chen , Hong Li , Yutao Li , He Zhao , Ming Lu , Kazuhiro Fujita , Abhay N. Pasupathy

Scanning probe microscopy (SPM) images of regularly arranged spatially periodic objects can be processed crystallographically. The resulting information may be used to remove from the SPM image distortions that are due to a less than…

Materials Science · Physics 2020-12-16 Peter Moeck

A microscopic theory of the transport in a scanning tunnelling microscope (STM) set-up is introduced for \pi-conjugated molecules on insulating films, based on the density matrix formalism. A key role is played in the theory by the energy…

Mesoscale and Nanoscale Physics · Physics 2012-05-23 Sandra Sobczyk , Andrea Donarini , Milena Grifoni
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