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We present the design and operation of a very-low temperature Scanning Tunneling Microscope (STM) working at $60 mK$ in a dilution refrigerator. The STM features both atomic resolution and micron-sized scanning range at low temperature.…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 N. Moussy , H. Courtois , B. Pannetier

In the last decade, detecting spin dynamics at the atomic scale has been enabled by combining techniques like electron spin resonance (ESR) or pump-probe spectroscopy with scanning tunneling microscopy (STM). Here, we demonstrate an…

We constructed a dilution-refrigerator (DR) based ultra-low temperature scanning tunneling microscope (ULT-STM) which works at temperatures down to 30 mK, in magnetic fields up to 6 T and in ultrahigh vacuum (UHV). Besides these extreme…

Superconductivity · Physics 2009-11-13 H. Kambara , T. Matsui , Y. Niimi , H. Fukuyama

We report the achievement of the first atomically resolved scanning tunneling microscope (STM) imaging in a water-cooled magnet (WM), where the extremely harsh vibrations and noises have been the major challenge. This homebuilt WM-STM…

Mesoscale and Nanoscale Physics · Physics 2015-05-15 Wenjie Meng , Ying Guo , Yubin Hou , Qingyou Lu

We have developed low temperature part of an ultra high vacuum scanning probe microscope (UHV-SPM) working at variable temperature within the range from 20 K to 700 K. To achieve the required temperature range, a flow cooling system using…

Instrumentation and Detectors · Physics 2016-10-04 Jiri Frolec , Jakub Vonka , Pavel Hanzelka , Tomas Kralik , Vera Musilova , Pavel Urban

Low-temperature scanning probe microscopes (SPMs) are critical for the study of quantum materials and quantum information science. Due to the rising costs of helium, cryogen-free cryostats have become increasingly desirable. However, they…

A spectroscopic imaging-scanning tunneling microscope (SI-STM) allows the atomic scale visualization of surface electronic and magnetic structure of novel quantum materials with high energy resolution. To achieve the optimal performance,…

Scanning Superconducting QUantum Interference Device (SQUID) microscopy is a powerful tool for imaging local magnetic properties of materials and devices, but it requires a low-vibration cryogenic environment, traditionally achieved by…

Superconductivity · Physics 2019-07-04 Logan Bishop-Van Horn , Zheng Cui , John R. Kirtley , Kathryn A. Moler

Spectroscopic-imaging scanning tunneling microscopy is a powerful technique to study quantum materials, with the ability to provide information about the local electronic structure with subatomic resolution. However, as most spectroscopic…

Applied Physics · Physics 2021-01-14 Irene Battisti , Gijsbert Verdoes , Kees van Oosten , Koen M. Bastiaans , Milan P. Allan

We report on state-of-the-art scanning probe microscopy measurements performed in a pulse tube based top-loading closed-cycle cryostat with a base temperature of 4 K and a 9 T magnet. We decoupled the sample space from the mechanical and…

A low-temperature ultra-high vacuum scanning probe microscopy (SPM) system with molecular beam epitaxy capability and optical access was conceived, built, and tested in our lab. The design of the whole system is discussed here, with special…

Instrumentation and Detectors · Physics 2021-03-09 Ze-Bin Wu , Zhao-Yan Gao , Xi-Ya Chen , Yu-Qing Xing , Huan Yang , Geng Li , Ruisong Ma , Aiwei Wang , Jiahao Yan , Chengmin Shen , Shixuan Du , Qing Huan , Hong-Jun Gao

We demonstrate a dynamic scanning capacitance microscope (DSCM) that operates at large bandwidths, cryogenic temperatures and high magnetic fields. The setup is based on a non-contact atomic force microscope (AFM) with a quartz tuning fork…

Instrumentation and Detectors · Physics 2009-03-12 A. Baumgartner , M. E. Suddards , C. J. Mellor

We report on the design and implementation of a rotating sample magnetometer (RSM) operating in the variable temperature insert of a cryostat equipped with a high-field magnet. The limited space and the cryogenic temperatures impose the…

Superconductivity · Physics 2015-05-28 M. Eisterer , F. Hengstberger , C. S. Voutsinas , N. Hörhager , S. Sorta , J. Hecher , H. W. Weber

Milli-Kelvin atomic force microscopy (mK-AFM) presents an ongoing experimental challenge due to the intense vibrations in a cryogen-free dilution refrigerator and the low cooling power available at mK temperatures. A viable approach is to…

We present a Scanning Hall Probe Microscope operating in ambient conditions. One of the unique features of this microscope is the use of the same stepper motors for both sample positioning as well as scanning, which makes it possible to…

Mesoscale and Nanoscale Physics · Physics 2017-12-12 Gorky Shaw , R. B. G. Kramer , N Dempsey , K Hasselbach

A novel scanning probe technique is presented: Scanning microSQUID Force microscopy (SSFM). The instrument features independent topographic and magnetic imaging. The SSFM operates in a dilution refrigerator in cryogenic vacuum. Sample and…

Superconductivity · Physics 2007-05-23 C. Veauvy , D. Mailly , K. Hasselbach

Scanning Thermal Microscopy (SThM) is a scanning probe technique aimed at quantitative characterization of local thermal properties at the length scale down to tens of nanometers. With many probe designs and approaches to interpretation of…

Materials Science · Physics 2024-09-12 Alexander Tselev

Scanning tunneling microscopy (STM) and micro-electromechanical systems (MEMS) have traditionally addressed vastly different length scales - one resolving atoms, the other engineering macroscopic motion. Here we unite these two fields to…

Mesoscale and Nanoscale Physics · Physics 2026-01-09 R. J. G. Elbertse , M. Xu , A. Keşkekler , S. Otte , R. A. Norte

We present the design and experimental results of a near-field scanning microwave microscope (NSMM) working at a frequency of 1GHz. Our microscope is unique in that the sensing probe is separated from the excitation electrode to…

Materials Science · Physics 2009-11-13 K. Lai , M. B. Ji , N. Leindecker , M. A. Kelly , Z. X. Shen

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…