Design and performance of an ultrahigh vacuum spectroscopic-imaging scanning tunneling microscope with a hybrid vibration isolation system

Abstract

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, low vibration facility is required. Here, we describe the design and the performance of an ultrahigh vacuum STM system supported by a hybrid vibration isolation system that consists of a pneumatic passive and a piezoelectric active vibration isolation stages. The STM system is equipped with a 1K pot cryogenic insert and a 9 Tesla superconducting magnet, capable of continuous SI-STM measurements for 7 days. A field ion microscopy system is installed for in situ STM tip treatment. We present the detailed vibrational noise analysis of the hybrid vibration isolation system and demonstrate the performance of our STM system by taking high resolution spectroscopic maps and topographic images on several quantum materials. Our results establish a new strategy to achieve an effective vibration isolation system for high-resolution STM and other scanning probe microscopy to investigate the nanoscale quantum phenomena.

References in corpus (24)

• Topological Surface States Protected From Backscattering by Chiral Spin Texture
• Imaging Quasiparticle Interference in Bi2Sr2CaCu2O8+d
• Reply to Comment on "Unconventional s-wave superconductivity in Fe(Se,Te)"
• Quasiparticle Scattering Interference in High Temperature Superconductors
• Scanning Tunneling Spectroscopy and Vortex Imaging in the Iron-Pnictide Superconductor BaFe${}_{1.8}$Co${}_{0.2}$As${}_2$
• Superconducting Topological Surface States in Non-centrosymmetric Bulk Superconductor PbTaSe2
• Coherence factors in a high-Tc cuprate probed by quasi-particle scattering off vortices
• Imaging Orbital-selective Quasiparticles in the Hund's Metal State of FeSe
• Tunable strain soliton networks confine electrons in Van der Waals materials
• Spectroscopic Imaging STM Studies of Electronic Structure in the Superconducting and Pseudogap Phases of Cuprate High-Tc Superconductors
• Atomic-scale visualization of quasiparticle interference on a type-II Weyl semimetal surface
• Design and performance of an ultra-high vacuum scanning tunneling microscope operating at dilution refrigerator temperatures and high magnetic fields
• A scanning tunneling microscope for spectroscopic imaging below 90 mK in magnetic fields up to 17.5 T
• Discovery of a strain-stabilised smectic electronic order in LiFeAs
• A modular ultra-high vacuum millikelvin scanning tunneling microscope
• Design and performance of an ultra-high vacuum spin-polarized scanning tunneling microscope operating at 30 mK and in a vector magnetic field
• Atomic scale shot-noise using broadband scanning tunnelling microscopy
• Development of a Scanning Tunneling Microscope for Variable Temperature Electron Spin Resonance
• Quasiparticle Interference of Surface States in Type-II Weyl Semimetal WTe${}_2$
• Noisy defects in a doped Mott insulator
• Definition of design guidelines, construction and performance of an ultra-stable scanning tunneling microscope for spectroscopic imaging
• Charge trapping and super-Poissonian noise centers in a cuprate high-temperature superconductor
• Atomic-scale imaging of emergent order at a magnetic-field-induced Lifshitz transition
• Versatile Variable Temperature and Magnetic Field Scanning Probe Microscope for Advanced Material Research

Cited by in corpus (1)

• Direct Visualization of a Disorder Driven Electronic Smectic Phase in Nonsymmorphic Square-Net Semimetal GdSbTe