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Recently, a single atom transistor was deterministically fabricated using phosphorus in Si by H-desorption lithography with a scanning tunneling microscope (STM). This milestone in precision, achieved by operating the STM in the…

Mesoscale and Nanoscale Physics · Physics 2014-08-05 M. Rudolph , S. M. Carr , G. Subramania , G. Ten Eyck , J. Dominguez , T. Pluym , M. P. Lilly , M. S. Carroll , E. Bussmann

Molecular orbital (MO) is one of the most fundamental concepts for molecules, relating to all branches of chemistry, while scanning tunneling microscopy (STM) has been widely recognized for its potential to measure the spatial distribution…

Chemical Physics · Physics 2025-08-01 Yu Zhu , Renjie Xue , Hao Ren , Yicheng Chen , Wenjie Yan , Bingzheng Wu , Sai Duan , Haiming Zhang , Lifeng Chi , Xin Xu

The transfer matrix method (TMM) is widely used to analyze the transport properties of one-dimensional or quasi-one-dimensional systems, such as nanostructures and layered materials in spintronics. However, its application in quantifying…

Mesoscale and Nanoscale Physics · Physics 2024-11-12 Qiang Kang , Chenguang Hu

It has been shown that electron transitions, as measured in a scanning tunnelling microscope (STM), are related to chemical interactions in a tunnelling barrier. Here, we show that the shape and apparent height of subatomic features in an…

Materials Science · Physics 2009-11-11 Linda Zotti , Werner A. Hofer , Franz J. Giessibl

We report on a fully nonequilibrium theory of the scanning tunneling microscopy (STM) through resonances induced by impurity atoms adsorbed on metal surfaces. The theory takes into account the effect of the tunneling current and finite bias…

Strongly Correlated Electrons · Physics 2009-10-31 M. Plihal , J. W. Gadzuk

We have used a low-temperature scanning tunneling microscope (STM) to study the surface of heavily doped semiconductor InAs crystals. The crystals are cleaved in situ along the (110) plane. Apart from atomically flat areas, we also observe…

Materials Science · Physics 2007-05-23 A. Depuydt , C. Van Haesendonck , N. S. Maslova , V. I. Panov , V. V. Rakov , S. V. Savinov

Many promising building blocks of future electronic technology - including non-stoichiometric compounds, strongly correlated oxides, and strained or patterned films - are inhomogeneous on the nanometer length scale. Exploiting the…

Mesoscale and Nanoscale Physics · Physics 2013-11-08 Anjan Soumyanarayanan , Michael M. Yee , Yang He , Hsin Lin , Dillon R. Gardner , Arun Bansil , Young S. Lee , Jennifer E. Hoffman

A sparse modeling approach is proposed for analyzing scanning tunneling microscopy topography data, which contains numerous peaks corresponding to surface atoms. The method, based on the relevance vector machine with $\mathrm{L}_1$…

Data Analysis, Statistics and Probability · Physics 2018-03-13 Masamichi J. Miyama , Koji Hukushima

A theoretical description of scanning tunneling potentoimetry (STP) measurement is presented to address the increasing need for a basis to interpret experiments on macrscopic samples. Based on a heuristic understanding of STP provided to…

Mesoscale and Nanoscale Physics · Physics 2011-03-23 Weigang Wang , Malcolm R. Beasley

We present Scanning Tunneling Spectroscopy measurements at 0.1 K using tips made of Al. At zero field, the atomic lattice and charge density wave of 2HNbSe2 are observed, and under magnetic fields the peculiar electronic surface properties…

Superconductivity · Physics 2008-05-30 I. Guillamon , H. Suderow , S. Vieira , P. Rodiere

Ultra-low temperature scanning tunnelling microscopy and spectroscopy (STM/STS) achieved by dilution refrigeration can provide unrivalled insight into the local electronic structure of quantum materials and atomic-scale quantum systems.…

Scanning Electron Microscopy (SEM) is indispensable in modern materials science, enabling high-resolution imaging across a wide range of structural, chemical, and functional investigations. However, SEM imaging remains constrained by…

A simple, reliable method for preparation of bulk Cr tips for Scanning Tunneling Microscopy (STM) is proposed and its potentialities in performing high-quality and high-resolution STM and Spin Polarized-STM (SP-STM) are investigated. Cr…

The desire to control and measure individual quantum systems such as atoms and ions in a vacuum has led to significant scientific and engineering developments in the past decades that form the basis of today's quantum information science.…

Applied Physics · Physics 2022-02-16 Yi Chen , Yujeong Bae , Andreas J. Heinrich

We present a fast and efficient tight-binding (TB) method for simulating scanning tunneling microscopy (STM) imaging of adsorbate molecules on ultrathin insulating films. Due to the electronic decoupling of the molecule from the metal…

Materials Science · Physics 2015-05-13 Antti Korventausta , Sami Paavilainen , Eeva Niemi , Jouko Nieminen

Spin-polarized scanning tunneling microscopy (SP-STM) measures tunnel magnetoresistance (TMR) with atomic resolution. While various methods for achieving SP probes have been developed, each is limited with respect to fabrication,…

Applied Physics · Physics 2019-01-30 P. R. Forrester , T. Bilgeri , F. Patthey , H. Brune , F. D. Natterer

We propose a new scalable platform for quantum computing (QC) -- an array of optically trapped symmetric-top molecules (STMs) of the alkaline earth monomethoxide (MOCH$_3$) family. Individual STMs form qubits, and the system is readily…

Atomic Physics · Physics 2019-10-01 Phelan Yu , Lawrence W. Cheuk , Ivan Kozyryev , John M. Doyle

We study the local density of states at and around a substituting impurity and use these results to compute current versus bias characteristic curves of Scanning Tunneling Microscopy (STM) experiments done on the surface of graphene. This…

Mesoscale and Nanoscale Physics · Physics 2009-04-28 N. M. R. Peres , Shan-Wen Tsai , J. E. Santos , R. M. Ribeiro

This work is concerned with the theoretical description of the contrast, i.e., the apparent height difference between two lateral surface positions on constant current spin-polarized scanning tunneling microscopy (SP-STM) images. We propose…

Materials Science · Physics 2013-01-25 Krisztián Palotás

Electric control of spins has been a longstanding goal in the field of solid state physics due to the potential for increased efficiency in information processing. This efficiency can be optimized by transferring spintronics to the atomic…

Mesoscale and Nanoscale Physics · Physics 2023-11-30 Piotr Kot , Maneesha Ismail , Robert Drost , Janis Siebrecht , Haonan Huang , Christian R. Ast