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We report our design, development, installation and troubleshooting of an open source Gnome X Scanning Microscopy (GXSM) software package for controlling and processing of modern Scanning Probe Microscopy (SPM) system as a development tool…

Instrumentation and Detectors · Physics 2014-10-13 S. K. Suresh Babu , J. S. Devrenjith Singh , D. Jackuline Moni , D. Devaprakasam

Superconducting (SC) tips for scanning tunneling microscopy (STM) can enhance a wide range of surface science studies because they offer exquisite energy resolution, allow the study of Josephson tunneling, or provide spatial contrast based…

Superconductivity · Physics 2023-09-19 Carolina A. Marques , Aleš Cahlík , Berk Zengin , Tohru Kurosawa , Fabian D. Natterer

We demonstrate an optimized fabrication process for electric field (voltage gate) controlled nano-constriction spin Hall nano-oscillators (SHNOs), achieving feature sizes of <30 nm with easy to handle ma-N 2401 e-beam lithography negative…

Mesoscale and Nanoscale Physics · Physics 2023-01-11 Akash Kumar , Mona Rajabali , Victor Hugo González , Mohammad Zahedinejad , Afshin Houshang , Johan Åkerman

We present a detailed experimental study on the electrostatic interaction between a quantum dot and the metallic tip of a scanning force microscope. Our method allowed us to quantitatively map the tip-induced potential and to determine the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 A. E. Gildemeister , T. Ihn , M. Sigrist , K. Ensslin , D. C. Driscoll , A. C. Gossard

Crystallographic image processing (CIP) techniques may be utilized in scanning probe microscopy (SPM) to glean information that has been obscured by signals from multiple probe tips. This may be of particular importance for scanning…

Materials Science · Physics 2020-07-07 Jack C. Straton , Peter Moeck , Bill Moon , Taylor T. Bilyeu

We introduce a statistical correlation analysis method to obtain information on the local geometry and orientation of the tip used in scanning tunneling microscopy (STM) experiments based on large scale simulations. The key quantity is the…

Materials Science · Physics 2015-03-17 Gábor Mándi , Gilberto Teobaldi , Krisztián Palotás

We extend the orbital-dependent electron tunneling model implemented within the three-dimensional (3D) Wentzel-Kramers-Brillouin (WKB) atom-superposition approach for simulating scanning tunneling microscopy (STM) by including arbitrary tip…

Materials Science · Physics 2013-10-15 Gábor Mándi , Norbert Nagy , Krisztián Palotás

We explore theoretically the scanning tunneling microscopy of single molecules on substrates using a framework of two local probes. This framework is appropriate for studying electron flow in tip/molecule/substrate systems where a thin…

Mesoscale and Nanoscale Physics · Physics 2016-08-31 John Buker , George Kirczenow

We explore theoretically the electroluminescence of single molecules. We adopt a local-electrode framework that is appropriate for scanning tunneling microscopy (STM) experiments where electroluminescence originates from individual…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 John Buker , George Kirczenow

Planar scanning probe microscopy is a recently emerging alternative approach to tip-based scanning probe imaging. It can scan an extended planar sensor, such as a polished bulk diamond doped with magnetic-field-sensitive nitrogen-vacancy…

Scanning tunneling microscopy (STM) is perhaps the most promising way to detect the superconducting gap size and structure in the canonical unconventional superconductor Sr$_2$RuO$_4$ directly. However, in many cases, researchers have…

Superconductivity · Physics 2024-12-02 Adrian Valadkhani , Jonas B. Profe , Andreas Kreisel , P. J. Hirschfeld , Roser Valentí

The invention of scanning tunneling microscope (STM) dates back to the work of Binnig and Rohrer in the early 1980s, whose seminal contribution was rewarded by the 1986 Nobel Prize in Physics for the design of the scanning tunneling…

Systems and Control · Electrical Eng. & Systems 2023-10-31 Hamed Alemansour , S. O. Reza Moheimani

The process of creating an atomically defined and robust metallic tip is described and quantified using measurements of contact conductance between gold electrodes and numerical simulations. Our experiments show how the same conductance…

Materials Science · Physics 2012-05-30 C. Sabater , C. Untiedt , J. J. Palacios , M. J. Caturla

We use impedance spectroscopy to measure the high frequency properties of single-walled carbon nanotube field effect transistors (swCN-FETs). Furthermore, we extend Scanning Gate Microscopy (SGM) to frequencies up to 15MHz, and use it to…

Materials Science · Physics 2007-05-23 Cristian Staii , Rui Shao , Dawn A. Bonnell , Alan T. Johnson

The electric control of quantum spin chains has been an outstanding goal for the few last years due to its potential use in technologies related to quantum information processing. In this work, we show the feasibility of the different steps…

Quantum Physics · Physics 2024-08-14 Diego Acosta Coden , Omar Osenda , Alejandro Ferrón

We describe scanning tunneling spectroscopy (STS) measurements performed on individual cobalt (Co) atoms deposited onto backgated graphene devices. We find that Co adatoms on graphene can be ionized by either the application of a global…

Ballistic conductance through a single atom adsorbed on a metallic surface and probed by a scanning tunneling microscope (STM) tip can be decomposed into eigenchannel contributions, which can be potentially obtained from shot noise…

Mesoscale and Nanoscale Physics · Physics 2015-05-27 Martyna Polok , Dmitry V. Fedorov , Alexei Bagrets , Peter Zahn , Ingrid Mertig

Investigation of transport properties is fundamental for characterizing electronic properties and phase transitions. However, most of the transport measurements on conductive layers have been performed at macroscopic scales, and thus the…

Mesoscale and Nanoscale Physics · Physics 2025-06-25 Masayuki Hamada , Masahiro Haze , Junya Okazaki , Yukio Hasegawa

We report on a method to fabricate and measure gateable molecular junctions which are stable at room temperature. The devices are made by depositing molecules inside a few-layer graphene nanogap, formed by feedback controlled…

The role of the tip in inelastic electron tunneling spectroscopy (IETS) performed with scanning tunneling microscopes (STM) is theoretically addressed via first-principles simulations of vibrational spectra of single carbon monoxide (CO)…

Mesoscale and Nanoscale Physics · Physics 2011-04-12 Aran Garcia-Lekue , Daniel Sanchez-Portal , Andres Arnau , Thomas Frederiksen