Research Activities

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 Overview

High resolution probe microscopy techniques that can analyze the growth/synthesis mechanism and functional properties of surface nanostructures under various environments such as low temperature, high magnetic field, ultrahigh vacuum, stress-strain field etc. play  important roles in nanomaterials research. We are aiming at the development of high resolution probing techniques for surface properties such as three-dimensional morphology, atomic structures, local electronic states, etc.

 Merging of nanocharacterization and nanofabrication and quantification are another targets. By applying the surface nanoprobe techniques to various nanoscale materials, we aims at establishing a technological basis for advanced nanomaterials research.




 Methodology and Originality

With the development of high resolution SPM technologies under extreme environments such as low temperature, ultrahigh vacuum, high magnetic field, stress-strain field, high temperature, electric field, etc., we aim at exploration and clarification of novel properties and functionalities of nanomaterials.


 Project Summary

1. Investigation of the novel properties of reconstructed Si(001) surfaces at Low Temperatures

Phase Manipulation on a reconstructed Si(001) surface at LT


 
Phys. Rev. Lett. 91, 146103 (2003)/Phys. Rev. B, 71, 245319 (2005)

Dopants on a reconstructed Si(001) surface at LT




2. Carbon nanosprout precipitation on C-doped Ni(111) surfaces at elevated temperatures


3. An atomic resolution UHV-STM that applies external tensile stress and strain


Control of Domain Population on Si(100) by Application of External Tensile Stress





 Major Instruments

Low Temperature (0.5K), High Magnetic Field (11T), UHV STM
Low Temperature (4.2K), UlHV STM
Variable Temperature UHV SPM
LT-UHV STM for Tunnel-Electron-Induced Luminescence
UHV STM that Applies External Tensile Stress and Strain
Scanning Auger Microscope (SAM)
Angle-Resolved Photo-Electron Spectrometer
Magnetron Sputter Deposition Apparatus
Vacuum Evaporator
Scanning Probe Microscopes in air environment


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