Experimental Capabilities

In-house capabilities of our group:

Cryogenic equipment:

• Cryomagnetics 9T superconducting magnet with variable temperature insert (1.5 K - 300 K)

• Physical Property Measurement System (PPMS) (shared with Wu group and other faculty at the Department of Physics & Astronomy) equipped with rotator probe

Scanning Probe Microscopy:

• Oxford Instruments Asylum Research Cypher S AFM

Van der Waals heterostructure assembly:

• Four-port inert atmosphere glovebox with extra depth (1000 mm) with solvent trap (M-Braun Unilab Pro)

• Home-built 3-axis motorized transfer stage with high-power microscope integrated inside the glovebox (Thorlabs, Olympus)

Optical microscopy:

• Nikon LV150

• Olympus BXM-F

• Stereo microscope AM Scope

Low noise electronics:

• SMUs: Keithley 2450

• Lock-in amplifiers: Stanford Research Systems SR830s and SR860s

• Current amplifiers: Ithaca DL1211

• Voltage amplifiers: SR560

• National Instruments NI DAQ cards

• PNA: Agilent E8362B 10 MHz – 20 GHz PNA Series Network Analyzer 

Misc:

• 3D printer from Bamboo Lab: our lab uses it to prototype any custom parts of equipment we need to fabricate

• Wet chemistry suite: we use various chemicals to prepare resists, make stamps for the transfer stage, perform liftoff and surface cleaning, as well as work with ionic liquids and polymer electrolytes

• Oxygen plasma system for substrate cleaning

• Spin coater for electron beam lithography and photoresist spin coating: substrate size - from chip size to 4-inch wafers

Coming soon:

• High-pressure setup with optical readout of pressure

• High-pressure setup for nanoscale device measurements at low temperatures 

Our group is also very actively using shared facilities at KU

KU Nanofabrication Core Facility:

• Electron beam evaporator (Thermionics VE-100)

• Photolithography

• Wafer dicing

• Wet and dry etching 

• Wirebonding

• Nanosurf AFM

• Hitachi environmental SEM

• A full list of equipment can be found here: https://nanofab.ku.edu 

KU Microscopy and Analytical Imaging Core Facility:

• SEM: Hitachi S4700 Cold-Field Emission Scanning Electron Microscope

• Electron beam lithography (EBL): our group owns and develops processes for the Nabity NPGS system installed on Hitachi S4700 at MAI

KU Physics & Astronomy Machine Shop:

• We fabricate custom parts of our equipment (transfer stage, glovebox, cryogenic inserts) using this facility

KU Electronics Shop:

• We work with experts in  ourelectronics shop when we need to fabricate advanced electronics components for our measurement setups