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The electrostatic behavior of a prototypical three-dimensional topological insulator Bi$_2$Se$_3$(111) is investigated by a scanning tunneling microscopy (STM) study of the distribution of Rb atoms adsorbed on the surface. The positively…

Mesoscale and Nanoscale Physics · Physics 2015-06-18 P. Löptien , L. Zhou , J. Wiebe , A. A. Khajetoorians , J. L. Mi , B. B. Iversen , Ph. Hofmann , R. Wiesendanger

Scanning tunneling microscopy (STM) has made tremendous progress in the study and understanding of both classical and unconventional superconductors. This has motivated a rapidly growing effort to apply the same techniques to the iron-based…

Superconductivity · Physics 2013-07-29 Can-Li Song , Jennifer E. Hoffman

Atomic-scale topography of epitaxial multilayer graphene grown on 4H-SiC(0001) was investigated using scanning tunneling microscopy (STM). Bunched nano-ridges ten times smaller than previously recorded were observed throughout the surface,…

Mesoscale and Nanoscale Physics · Physics 2015-06-23 P. Xu , M. L. Ackerman , S. D. Barber , J. K. Schoelz , D. Qi , P. M. Thibado , V. D. Wheeler , L. O. Nyakiti , R. L. Myers-Ward , C. R. Eddy, , D. K. Gaskill

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

Magnetron sputtering has also been used to deposit thin films of some materials and it has significant technological importance. A modeling on deposition of epitaxial thin films of Yttrium Stabilized Zirconia (YSZ) was done the diffusion of…

Materials Science · Physics 2016-11-24 A. S Bhattacharyya , P. Prabhakar , R. P. Kumar , S. Sharma , S. K. Raj , R. Ratn , P. Kommu

Scanning tunneling microscope (STM) is a powerful tool for studying the structural and electronic properties of materials at the atomic scale. The combination of low temperature and high magnetic field for STM and related spectroscopy…

Materials Science · Physics 2018-11-13 Syu-You Guan , Hsien-Shun Liao , Bo-Jing Juang , Shu-Cheng Chin , Tien-Ming Chuang , Chia-Seng Chang

Hydrocarbon contamination is an ever-present factor to consider in surface science measurements. In the case of van der Waals material surfaces, the structure of this contamination has become known in recent years as a self-assembled layer…

Using low energy electron diffraction (LEED), scanning tunnelling microscopy (STM) and x-ray absorption spectroscopy (XAS) techniques, we have studied the first steps of silicon adsorption onto Cu (001) single crystal substrate. For low…

Materials Science · Physics 2015-06-16 B. Lalmi , M. Chorro , R. Belkhou

We have analyzed by Scanning Tunnelling Microscopy (STM) thin films made of few (3-5) graphene layers grown on the C terminated face of 6H-SiC in order to identify the nature of the azimuthal disorder reported in this material. We observe…

Materials Science · Physics 2008-04-23 François Varchon , Pierre Mallet , Laurence Magaud , Jean-Yves Veuillen

We have investigated the atomically-resolved substrate and homoepitaxial thin film surfaces of SrTiO3(001) using low-temperature scanning tunneling microscopy/spectroscopy (STM/STS) combined with pulsed laser deposition (PLD). It was found…

Materials Science · Physics 2015-05-18 Takeo Ohsawa , Katsuya Iwaya , Ryota Shimizu , Tomihiro Hashizume , Taro Hitosugi

In this Letter, we present the first non-contact atomic force microscopy (nc-AFM) of a silicene on silver (Ag) surface, obtained by combining non-contact atomic force microscopy (nc-AFM) and scanning tunneling microscopy (STM). STM images…

A molecular dynamics simulation of sublimation of silicene and silicon films of different thikness is performed. It is shown that thiner films sublimate at lower temperatures. The sublimation temperature comes to a saturated value of…

Materials Science · Physics 2023-09-06 Yu. D. Fomin , E. N. Tsiok , V. N. Ryzhov

Scanning tunneling microscopy (STM) is a powerful technique for imaging atomic structure and inferring information on local elemental composition, chemical bonding, and electronic excitations. However, traditional methods of visual…

Superconductivity · Physics 2023-02-21 Qiang Zou , Basu Dev Oli , Huimin Zhang , Joseph Benigno , Xin Li , Lian Li

We describe a scanning tunneling microscope (STM) that operates at magnetic fields up to 22 Tesla and temperatures down to 80 mK. We discuss the design of the STM head, with an improved coarse approach, the vibration isolation system, and…

A scanning tunneling microscope (STM) has been equipped with a nanoscale force sensor and signal transducer composed of a single D2 molecule that is confined in the STM junction. The uncalibrated sensor is used to obtain ultra-high…

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

A scanning tunneling microscope (STM) can do more than atomic imaging and manipulation. Its tunneling current can also be used for the excitation of light, converting electron energy to photon energy. STM based single-molecule…

Optics · Physics 2019-01-01 Yao Zhang , Yang Zhang , Zhenchao Dong

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…

We employ scanning probe microscopy to reveal atomic structures and nanoscale morphology of graphene-based electronic devices (i.e. a graphene sheet supported by an insulating silicon dioxide substrate) for the first time. Atomic resolution…

Materials Science · Physics 2008-11-05 Masa Ishigami , J. H. Chen , W. G. Cullen , M. S. Fuhrer , E. D. Williams

A Scanning Tunneling Microscope (STM) is one of the most important scanning probe tools available to study and manipulate matter at the nanoscale. In a STM, a tip is scanned on top of a surface with a separation of a few \AA. Often, the…

As-rich GaAs (001) surfaces are successfully observed during As4-irradition by a system in which scanning tunneling microscopy (STM) and molecular beam epitaxy can be performed simultaneously. With a substrate temperature of 440 C and an…