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Studying nanoscale dynamics is essential for understanding quantum materials and advancing quantum chip manufacturing. Still, it remains a major challenge to measure non-equilibrium properties such as current and dissipation, and their…

In scanning gate microscopy, where the tip of a scanning force microscope is used as a movable gate to study electronic transport in nanostructures, the shape and magnitude of the tip-induced potential are important for the resolution and…

介观与纳米尺度物理 · 物理学 2009-11-13 A. E. Gildemeister , T. Ihn , M. Sigrist , K. Ensslin , D. C. Driscoll , A. C. Gossard

We demonstrate noncontact, high quality surface modification with spatial resolution of ~20 nm. The nanowriting is based on the interaction between the surface and the tip of an Atomic force microscope illuminated by a focused laser beam…

材料科学 · 物理学 2015-05-13 Alexander A Milner , Kaiyin Zhang , Yehiam Prior

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…

材料科学 · 物理学 2009-11-11 Linda Zotti , Werner A. Hofer , Franz J. Giessibl

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…

量子物理 · 物理学 2024-08-14 Diego Acosta Coden , Omar Osenda , Alejandro Ferrón

Using total energy calculations, based on interaction potentials from the embedded atom method, we show that the presence of the tip not only lowers the barrier for lateral diffusion of the adatom towards it, but also shifts the…

材料科学 · 物理学 2009-11-07 Chandana Ghosh , Abdelkader Kara , Talat S. Rahman

We report on the oxidation of self-assembled silicene nanoribbons grown on the Ag(110) surface using Scanning Tunneling Microscopy and High-Resolution Photoemission Spectroscopy. The results show that silicene nanoribbons present a strong…

Despite decades of research, the ultimate goal of nanotechnology--top-down manipulation of individual atoms--has been directly achieved with only one technique: scanning probe microscopy. In this Review, we demonstrate that scanning…

The scanning metallic tip of a scanning force microscope was coupled capacitively to electrons confined in a lithographically defined gate-tunable quantum dot at a temperature of 300 mK. Single electrons were made to hop on or off the dot…

介观与纳米尺度物理 · 物理学 2009-11-10 A. Pioda , S. Kicin , T. Ihn , M. Sigrist , A. Fuhrer , K. Ensslin , A. Weichselbaum , S. E. Ulloa , M. Reinwald , W. Wegscheider

Atomic force microscopy (AFM) with molecule-functionalized tips has emerged as the primary experimental technique for probing the atomic structure of organic molecules on surfaces. Most experiments have been limited to nearly planar…

Achieving a high intensity in inelastic scanning tunneling spectroscopy (IETS) is important for precise measurements. The intensity of the IETS signal can vary up to a factor three for various tips without an apparent reason accessible by…

介观与纳米尺度物理 · 物理学 2016-04-15 Norio Okabayashi , Alexander Gustafsson , Angelo Peronio , Magnus Paulsson , Toyoko Arai , Franz J. Giessibl

Atomic-scale engineering typically involves bottom-up approaches, leveraging parameters such as temperature, partial pressures, and chemical affinity to promote spontaneous arrangement of atoms. These parameters are applied globally,…

In this paper, we have designed a low-cost scanning tunneling microscope (STM) priced at 300 USD or 2000 CNY. This microscope is suitable for educational purposes and low-demand research imaging at the nanometer level. This microscope's…

仪器与探测器 · 物理学 2024-01-17 Weilin Ma

The tip of a scanning tunnelling microscope can inject hot electrons into a surface with atomic precision. Their subsequent dynamics and eventual decay can result in atomic manipulation of an adsorbed molecule, or in light emission from the…

化学物理 · 物理学 2019-07-19 Rebecca M. Purkiss , Henry G. Etheridge , Peter A. Sloan , Kristina R. Rusimova

We present an atomically precise technique to create sulfur vacancies and control their atomic configurations in single-layer MoS$_{2}$. It involves adsorbed Fe atoms and the tip of a scanning tunneling microscope, which enables single…

Electron-spin resonance carried out with scanning tunneling microscopes (ESR-STM) is a recently developed experimental technique that is attracting enormous interest on account of its potential to carry out single-spin on-surface resonance…

介观与纳米尺度物理 · 物理学 2023-04-19 Santiago A. Rodríguez , Sergio S. Gómez , Joaquín Fernández-Rossier , Alejandro Ferrón

The first numerical simulation of the process of ionization of an atom adsorbed on a metal surface by the subfemtosecond pulse is presented. The streaking scheme is considered, when a weak sub-femtosecond pulse comes together with a strong…

其他凝聚态物理 · 物理学 2015-05-13 A. K. Kazansky , P. M. Echenique

The interplay between the oxidation state and the optical properties of molecules plays a key role for applications in displays, sensors or molecular-based memories. The fundamental mechanisms occurring at the level of a single-molecule…

介观与纳米尺度物理 · 物理学 2018-08-15 Benjamin Doppagne , Michael C. Chong , Hervé Bulou , Alex Boeglin , Fabrice Scheurer , Guillaume Schull

In order to probe nanostructures on a surface we present a microscope based on the quantum recurrence phenomena. A cloud of atoms bounces off an atomic mirror connected to a cantilever and exhibits quantum recurrences. The times at which…

量子物理 · 物理学 2009-11-13 Farhan Saif