Center for Applied Physics and Superconducting Technologies

Northwestern University and Fermi National Acclerator Laboratory

Northwestern University
Fermi National Accelerator Laboratory - Wilson Hall
Northwestern and Fermilab established the Center for Applied Physics and Superconducting Technologies (CAPST) with a focus on superconductivity at the forefronts of accelerator physics, quantum simulation and computing, and discovery of superconducting materials for next generation quantum devices [Press Release].

CAPST Research
Superconducting RF Cavities

Superconducting Niobium RF cavities for particle acceleration operate near the limit of their electrical current carrying capacity. A goal of CAPST research is to determine the factors limiting their performance and to provide ideas and criteria for next generation superconducting RF cavities for particle acceleration. CAPST research is a multi-disciplinary approach to achieve a fundamental understanding of the physical, chemical and structural mechanisms responsible for dissipation of electrical currents in SRF cavities.
Superconducting Materials

CAPST researchers grow high-quality single crystals and thin film superconductors for basic and applied research. Single crystals of high temperature cuprate superconductors, heavy fermion superconductors and multi-band superconductors are grown and studied by NMR, SANS and transport studies. Superconducting compounds of NbSn3 and MgB2 are investigated for use in SRF technology for particle acceleration.
Superconducting Devices

CAPST researchers are fabricating and characterizing hybrid superconducting, magnetic, and strong spin-orbit materials as for electronic and spintronic devices. Josephson Junctions fabricated with Ferromagnetic tunnel barriers (SFS devices) provide a route for generating voltage-controlled superconducting spin currents that can interact and control nano-scale magnetic elements (magnetic quantum dots).
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