Tip Preparation Tool  | © Scienta Omicron
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Tip Preparation Tool

Allows Cleaning of SPM Tunneling Tips

SPMSTM

  • Operating Voltage: Up to 1000 V
  • Emission Current: Up to 3 mA
  • Tip temperature: > 1000 °C

The flange mounted Tip Preparation Tool is designed for efficient cleaning of SPM tunneling tips. Especially etching remains or oxides can create artefacts or unstable tips during imaging or spectroscopy applications. The Tip Preparation Tool offers heating up to temperatures above 1000 °C at the tip to remove those remains.

More Information

Tool for STM Experiments

Graphic of the Topography Channels | © Scienta Omicron
Topography Channel 

STM experts utilise this tool to prepare their tips for advanced STM experiments. Clean prepared tips allow for extremely reproducible results as e.g. required for dI/dV mapping.

The Tip Preparation Tool for all standard Scienta Omicron STM tips. 

Safe handling by means of tip carrier plates and wobble stick.  A z-shift allows optimising the distance between tip and the heating facility which allows to operate the tool for short and very long STM tips.

Graphic of the dI-dV Channel  | © Scienta Omicron
dl/Dv Channel

Accurate dI/dV mapping allows to distinguish between hcp and fcc domains on a Au(111) on Micoa surface. The displayed dI/dV map recorded close to the energy of max. difference in LDOS between hcp and fcc domains at -0.48eV. As a result almost no depression in dI/dV is seen at the hcp domain locations. Sub-surface defects (markers) contribute strongly to the dI/dV contrast.

Topography with the untreated Tungsten tip  | © Scienta Omicron
Topography with the untreated Tungsten Tip

Prior to the tip preparation process the same tip did not provide reliable tunneling conditions on the same sample surface.

Specifications

Flansh mounted tip preparation tool

For Scienta Omicron Tip Carrier Plates

Operating Voltage

Up to 1000 V

Emission Current

Up to 3 mA

Tip Materials

Tunsten, Niobium, etc

Tip temperature

> 1000 °C

Power supply

Voltage adjustment
Emission current monitor

Mounting flange size

DN 40 CF / 2¾′′ OD

For full specifications and more information about product options, please do not hesitate to contact your local sales representative.