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Related Experiment Video

Updated: Oct 8, 2025

A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements

A Simple Dewar/Cryostat for Thermally Equilibrating Samples at Known Temperatures for Accurate Cryogenic Luminescence Measurements

Published on: July 19, 2016

Ultra-stable dry cryostat for variable temperature break junction.

Andrea Gemma¹, Anel Zulji¹, Femke Hurtak¹

¹IBM Research - Zurich, 8803 Rueschlikon, Switzerland.

The Review of Scientific Instruments

|January 1, 2022

Summary

This summary is machine-generated.

A new variable temperature setup using a pulse tube cryocooler enables break-junction experiments from 12 K to room temperature. Vibration damping techniques achieve 12 pm levels, allowing stable atomic chain measurements.

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Last Updated: Oct 8, 2025

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Area of Science:

Cryogenic Physics
Materials Science
Nanotechnology

Background:

Dry cryostats utilizing pulse tube cryocoolers offer advantages in ease of use and automation for cryogenic experiments.
Significant vibrations from pulse tube cryocoolers can impede sensitive measurements, particularly for scanning probe-based microscopes.

Purpose of the Study:

To design and implement a variable temperature setup for break-junction experiments.
To overcome vibration challenges associated with pulse tube cryocoolers in cryogenic environments.
To enable stable measurements of atomic chains at the nanoscale.

Main Methods:

Utilized a pulse tube cryocooler for variable temperature control, ranging from 12 K to room temperature.
Implemented advanced vibration-damping techniques to minimize mechanical disturbances.
Achieved a vibration level of 12 picometers (pm) between the experimental tip and sample.

Main Results:

Successfully performed break-junction experiments in a cryogenic environment with a variable temperature range.
Demonstrated the capability to maintain atomic chains of a few nanometers between electrodes.
Significantly reduced operational vibrations to picometer levels.

Conclusions:

The developed variable temperature setup effectively addresses vibration issues in pulse tube cryocooler-based systems.
This system facilitates high-precision break-junction measurements and nanoscale atomic chain manipulation.
Dry cryostats with vibration damping are viable for advanced cryogenic physics and nanotechnology applications.