UHV STM 10 pages

MBE PRO 753-V01/Oct10
UHV STM 1_210V02_Jan/06
UHV STM 1
The legendary STM developed by Omicron.
Unsurpassed stability and resolution
Eddy current damping
UHV sample/tip exchange
In-vacuum I/V converter
UHV STM 1 scanner
for unsurpassed
stability and
resolution.
More than 200 instruments have been delivered
and successfully installed around the world since
the development of the UHV STM 1 in 1987.
The Omicron UHV STM 1 is the benchmark for
easy, reliable and high-performance STM measurements in UHV. The volume of our customers’
research results and publications is nal proof of
the unbeatable performance and quality of the
design. The popularity and ease of operation of
the UHV STM 1 has lead to it gaining the reputation of a “workhorse” for UHV STM applications
where rapid ultimate resolution is required.
The proven Omicron eddy current damping allows
high-resolution STM even in non-ideal conditions.
An easy-to-use, pincer-grip wobble stick is used
for fast transfer action between the main system
manipulator, the sample/tip storage carousel
and the sample acceptor in the UHV STM 1. An
in-vacuum I/V converter close to the tip provides
lowest noise conditions.
UHV System Integration
The UHV STM 1 is housed in its own, dedicated
UHV chamber, which can either be mounted onto
a standard Omicron system (Multiprobe™…) or
bolted onto to an existing vacuum system. This
concept allows easy access to the microscope and
avoids interference with other techniques. Omicron’s proven internal spring suspension system
with eddy current damping ensures excellent
vibration isolation. The bolt-on chamber houses a
sample carousel for up to 8 samples/tips. Transfer
of samples is quick and reliable using a wobble
stick. Viewports on the bolt-on chamber allow
optimal observation of the tip/sample coarse
positioning using the external CCD camera.
Direct imaging of the atomic structure inside a
Atomic resolution on Pt(100).
nanowire.
Data courtesy of A. Borg, Trondheim.
Data courtesy of A. Mikkelsen, Lund University,
Sweden.
Literature: ”Direct imaging of the atomic structure inside a nanowire by scanning tunneling
microscopy“, Nature Materials, 3 (2004), 519.
www.omicron.de
Omicron NanoTechnology GmbH
www.omicron.de