News & Events

Image of the Month
Posted Date: May 1, 2007
institution

Microscope:
Homebuilt Low Temperature Microscope

Controls:
SPM 1000 Control System W/PLLPro AFM Controller

Description :
Cu(111) imaged with V=20 mV and I=0.3 nA. A defect at the top part of the image produces a standing charge wave with 10 pm corrugation. The underlying copper lattice displays 2 pm corrugation.

B. Albers and U. D. Schwarz – Department of Mechanical Engineering and Center for Research on Interface Structures and Phenomena (CRISP), Yale University

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Image of the Month
Posted Date: April 1, 2007
institution

Microscope:
Homebuilt Low Temperature Microscope

Controls:
SPM 1000 Control System

Description :
Manipulated single azobenzene molecule using several different techniques with a low temperature scanning tunneling microscope (STM).

Operating at a temperature of 34K the isolated azobenzene molecules on the Au(111) surface are selectively and reversibly switched by a 1 microsecond long, -3 V pulse. The imaging parameters are -1.25V, 50 pA.

M. Crommie, M. Comstock, J. Cho, A. Kirakosian

University of California, Berkeley, Lawrence Berkeley National Lab

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Image of the Month
Posted Date: March 1, 2007
institution

Microscope:
RHK QuadraProbe Four-Point Cryogenic Multisystem

Controls:
SPM 1000 Control System

Description :
STM image of yttrium nanowires grown on Si(100). Image was taken at 10 K Sample bias: 2.0 V Tunneling current: 0.18 nA Scan size: 140 nm x 140 nm

Tae-Hwan Kim, An-Ping Li and John Wendelken Center for Nanophase Materials Sciences, Oak Ridge National Laboratory

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Image of the Month
Posted Date: February 1, 2007
institution

Microscope:
USM-1300

Controls:
SPM 1000 Control System

Description :
Bismuth Strontium Calcium Copper Oxide (BSCCO) superconductor imaged at 6K Francis Niestemski, Shankar Kunwar and Vidya Madhavan

Boston College

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