Podcasts about scanning tunneling microscope

  • 3PODCASTS
  • 33EPISODES
  • AVG DURATION
  • ?INFREQUENT EPISODES
  • Jul 24, 2017LATEST

POPULARITY

20172018201920202021202220232024


Best podcasts about scanning tunneling microscope

Latest podcast episodes about scanning tunneling microscope

Scanning Tunneling Microscope - How Nanoscientists see Atoms
This STM is so simple that we use it in UVA classes. But it also earned two physicists the Nobel Prize in 1986.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:13


Scanning Tunneling Microscope - How Nanoscientists see Atoms
This STM is so simple that we use it in UVA classes. But it also earned two physicists the Nobel Prize in 1986.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:13


Scanning Tunneling Microscope - How Nanoscientists see Atoms
It's done by ratcheting this cylinder in until an electron current is sensed.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:31


Scanning Tunneling Microscope - How Nanoscientists see Atoms
But how do we first position the probe only a nanometer or so from the sample surface?

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:11


Scanning Tunneling Microscope - How Nanoscientists see Atoms
The voltage to the back crystal determines pixel color. Voltages on the other crystals move the probe and pixels side-to-side and up-and-down.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:30


Scanning Tunneling Microscope - How Nanoscientists see Atoms
Let's see how these work together to create an atomic scale map of the sample surface.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:11


Scanning Tunneling Microscope - How Nanoscientists see Atoms
Voltages to a piezoelectric crystal move the probe in and out.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:23


Scanning Tunneling Microscope - How Nanoscientists see Atoms
A feedback loop holds the electron current constant by keeping the distance from probe to sample constant.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:10


Scanning Tunneling Microscope - How Nanoscientists see Atoms
To see how a Nanosurf easyScan STM works, let's take it apart in virtual reality.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:06


Scanning Tunneling Microscope - How Nanoscientists see Atoms
It's done by ratcheting this cylinder in until an electron current is sensed.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:31


Scanning Tunneling Microscope - How Nanoscientists see Atoms
The voltage to the back crystal determines pixel color. Voltages on the other crystals move the probe and pixels side-to-side and up-and-down.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:30


Scanning Tunneling Microscope - How Nanoscientists see Atoms
Let's see how these work together to create an atomic scale map of the sample surface.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:11


Scanning Tunneling Microscope - How Nanoscientists see Atoms
Voltages to a piezoelectric crystal move the probe in and out.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:23


Scanning Tunneling Microscope - How Nanoscientists see Atoms
But how do we first position the probe only a nanometer or so from the sample surface?

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:11


Scanning Tunneling Microscope - How Nanoscientists see Atoms
A feedback loop holds the electron current constant by keeping the distance from probe to sample constant.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:10


Scanning Tunneling Microscope - How Nanoscientists see Atoms
To see how a Nanosurf easyScan STM works, let's take it apart in virtual reality.

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Jul 24, 2017 0:06


Engineering small worlds: micro and nano technologies - for iPad/Mac/PC

A wide range of applications: companies that specialise in scanning probe microscopy use different types of tip to create atomic resolution images.

types computers ibm stylus microscopy atomic force electrical field scanning tunneling microscope
Engineering small worlds: micro and nano technologies - for iPod/iPhone

Transcript -- A wide range of applications: companies that specialise in scanning probe microscopy use different types of tip to create atomic resolution images.

types computers ibm stylus microscopy atomic force electrical field scanning tunneling microscope
Engineering small worlds: micro and nano technologies - for iPad/Mac/PC

Transcript -- A wide range of applications: companies that specialise in scanning probe microscopy use different types of tip to create atomic resolution images.

types computers ibm stylus microscopy atomic force electrical field scanning tunneling microscope
Engineering small worlds: micro and nano technologies - for iPod/iPhone

A wide range of applications: companies that specialise in scanning probe microscopy use different types of tip to create atomic resolution images.

types computers ibm stylus microscopy atomic force electrical field scanning tunneling microscope
Scanning Tunneling Microscope - How Nanoscientists see Atoms
This podcast is drawn from the Virtual Lab presentations of WeCanFigureThisOut.org. The copyrighted material of this site was developed under funding from National Science Foundation CCLI, NIRT, MRSEC and NUE programs. This project is led by John C. Be

Scanning Tunneling Microscope - How Nanoscientists see Atoms

Play Episode Listen Later Dec 31, 1969 0:33