Product details
Dilution Refrigerator for Scanning Tunneling Microscopy Aug 13, 2010
Company details
Janis Research Company, Inc.
2 Jewel Drive
PO Box 696
Wilmington
MA
01887-0696
United States
Tel:
+1 978-657-8750
Fax:
+1 978 658-0349
A custom UHV compatible JDR-500 dilution refrigerator (DR) was tested at Janis Research Company in preparation for installation at NIST’s new Center for Nanoscale Science and Technology (CNST).
The system includes a 15 Tesla superconducting magnet with a compensation coil and has central access into the UHV space. Using a top manipulator, the large bore central access allows an STM with in-situ prepared sample and probe tip to be translated into the magnet center without warming up the system above 4 K. An integral pre-cooling circuit is used to cool the system to 4 K without the need for any helium exchange gas.
The first test of the system confirmed that it achieves a 10 mK base temperature with approximately 100 shielded wires attached to the MC, and provides a cooling power of greater than 300 µW at 100 mK in both the 1 K Pot and JT operating modes.
Please visit http://www.janis.com/UHVCompatibleDilutionRefrigeratorForSTM_NanoTechWeb.aspx for more information.
Categories
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