UM-StL Scanned Tip and Electron Image Lab

Index

1. Overview
2. Image(s) of the month
3. Long Term Projects
4. Fire-Fighting Projects
5. Facilities
6. Immediate Members of the Group
7. Non-local or Previous Members of the Group
8. Recent Papers and/or Abstracts
9. Other Interesting Microscopy Sites
10. mail to author(s)

1996

Feb'96		Simulated lateral displacement image of a soft cosine ripple (AFM), and some intergrown hemispherical bumps (air-STM).{CS,PF}
Jan'96		HREM showing 2D graphite starflakes in the core of a micron-sized presolar graphite onion, likely carried to us on the backs of photons from the near-surface of a carbon-rich red giant.{KB,DD,QW,PF}

1995

Dec'95		Raw STM image of a gold/palladium(Au/Pd)-on-graphite specimen in air, showing what may be Au/Pd clustering on a carbon atom lattice.{QW,CS}
Nov'95		CTEM of oxygen precipitates (& related defects) in VLSI silicon after 2^n hours growth, for comparison with infrared laser scattering profiles.{LM}
Oct'95		TM_AFM images of 0.13 nm Steps on "fresh-epitaxial" (100) Silicon in air.{LF}
Sep'95		AFM video of an integrated circuit memory chip, with micron-sized cube for scale.{RA}
Aug'95		AFM micrographs of sickle cell platelets provided by the microscopist.{RA}
Jul '95		TM_AFM images, with many field-widths for roughness spectroscopy, of widely-spaced atomic steps on (100) silicon in air.{LF}
Jun'95		Simulated HREM images of randomly-oriented atom-thick graphite flakes, suggesting in direct space the remarkable features of diffraction from 2D crystals.{KB,PF}
May'95		"Nano-wheat" in some "nano-valleys", or water on mica?{LF}
Apr'95		An etched nuclear particle track in mica, probably from natural fission of uranium contained therein.{LF}
Mar'95		HREM of ordered icosahedra in annealed TiMn quasicrystal, shown in 10-fold symmetry down P2(001).{LL,PF}
Feb'95		Some strange rimmed pits in argon-irradiated mica, only a molecule or so deep (and high) but 10nm wide!{LF}
Jan'95		Playing "Where's Crystaldo" with Bayesian background subtraction of noise from images.{JT,LF,PF}

Long-Term Projects Include:

• People: Analytical Support and Research
  • Two-Armed Physicists and University-Based Management by Results
  • The Ethics of Analytical Support

• Stuff: Materials of Interest
  • Oxygen Precipitates as a Probe of Radial Gradients in VLSI Silicon
  • Native Oxide Nucleation & Growth on Single Crystal Si
  • Plasma-Enhanced Vapor-Deposited Iron Carbide/Nitride Films
  • Scanning Force Microscopy of Nuclear Track Pits on Mica
  • The Cross-Section Structure of Bonded Silicon-On-Insulator
  • Scanned Probe Study of Conductive Polymers and Oxides
  • Hydrogen Pinning at Dislocations in Cu, Nb and Pd
  • Materials Astronomy & Study of Circumstellar Dusts in the Lab, including...
  • Interplanetary Dust in the TEM - Diverse Materials from the Early Solar System
  • PreSolar Interstellar Silicon Carbon and Diamonds in the TEM
  • Imaging the Two-Dimensional Crystal Cores of Interstellar Graphite Onions

• Instruments: Experimental Techniques/Methods
  • Stationary Tip Images and Time-Domain Noise in the SPM
  • Lattice Distortion in the SPM
  • Monitoring Scanned Probe Tip Shape with Nuclear Track Pits
  • Lateral Displacement Microscopy
  • Capacitance and Conductivity Imaging in the Scanning Force Microscope
  • HREM Imaging of Two-Dimensional (i.e. Atom-Thick) Crystals

• Data: Inference, Statistical and Otherwise
  • Bayesian Background Subtraction
  • Roughness Spectroscopy
  • Electron Phase Contrast Focus & Astigmate (EPCfocus) - The Arcade Game?
  • Inverting Pit Profiles to get Tip Shape Envelopes and Touch Maps
  • Single Crystal Analysis of Selected Area Electron Diffraction Patterns (SXTL)
  • Azimuthal Averaging of Electron Diffraction Patterns

Fire-Fighting Projects Include:

• Study of Mineral Nanoparticles for Magnetic Resonance Imaging
• Quantifying the Optical Precipitate Profiling of Defects in VLSI Silicon
• Scanned Probe Microscopy of Conductive Polymers

Facilities:

Since 1 August 1996, you are visitor number .

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Send comments and/or complaints to lufei@newton.umsl.edu or pfraundorf@umsl.edu.

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