scanning tunneling microscope

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scanning tunneling microscope

n.
A microscope that scans the surface of a sample with a beam of electrons, causing a narrow channel of tunneling electrons to flow between the sample and the beam, and producing three-dimensional images of atomic topography and structure.

scan′ning tun′neling mi`croscope


n.
an electronic microscope that produces images of atomic structures by moving an extremely fine probe over the surface of a material.
Abbr: STM
[1980–85]

scanning tunneling microscope

A microscope used to make images of individual atoms on the surface of a material. The microscope has a probe ending in a tiny sharp tip that moves along the material's surface while emitting a stream of electrons. The flow of electrons is constant so long as the distance between the tip and the material's surface atoms is held constant. An image is formed based on the continual adjustments made to the height of the tip to keep the electron flow constant over the "bumps" that are the atoms.
References in periodicals archive ?
Ogumi, "Electrochemical scanning tunneling microscopy analysis of the surface reactions on graphite basal plane in ethylene carbonate-based solvents and propylene carbonate," Journal of Power Sources, vol.
Hirose, "Images of scanning tunneling microscopy on the Si(001)-p(2 x 2) reconstructed surface," Materials Transactions, vol.
Lazarev, et al., "Fabrication of [001]-oriented tungsten tips for high resolution scanning tunneling microscopy", Sci.
"Surface studies by scanning tunneling microscopy," Phys.
Stals, "Scanning tunneling microscopy and spectroscopy of non-doped, hydrogen terminated CVD diamond," Physica Status Solidi A, vol.
Weibel, "Surface studies by scanning tunneling microscopy," Physical Review Letters, vol.
- Scanning probe microscopy such as scanning tunneling microscopy and atomic force microscopy
Among other things, he studied Kondo materials and antiferromagnetism before turning his attention to scanning tunneling microscopy. Dr.
For advanced readers, it covers recent developments in in-situ surface analysis such as high pressure scanning tunneling microscopy, ambience pressure X-ray photoelectron spectroscopy, and sum frequency generation vibrational spectroscopy (SFG).
Using a technique developed specifically for their experiment known as spectroscopic imaging scanning tunneling microscopy (SI-STM), the team was able to track the arrangement and interactions of electrons in the crystals, and watch how they react at different temperatures and see what happens when they passed through the mysterious phase transition.
Built for university labs and routine industrial applications, the Solver Next scanning probe microscope features both atomic force microscopy (AFM) and scanning tunneling microscopy (STM) in one unit.
Specifically, we show local density of states (LDOS) measurable by scanning tunneling microscopy (STM) and local spectral densities relating to angle-resolved photoelectron spectroscopy (ARPES) of carbon atoms near the zig-zag edge in graphene.

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