A cryogenic, scanned probe imaging system for studying nanoscale magnetism and coherent qubit-photon interfaces
Abstract
The nitrogen vacancy (NV) center in diamond has rapidly come to the forefront of quantum technologies both as a sensor and as a quantum bit. In this DURIP proposal we propose to build an instrument to exploit the NV center for 1) nanoscale imaging of a variety of condensed matter phenomena and 2) building quantum networks comprising NV center spins, phonons, and photons. Despite the intellectually diverse goals, the common use of the NV center and a scanning probe platform call for similar instrumentation requirements.High spatial resolution magnetic imaging has driven important developments in fields ranging from materials science to biology. However, to uncover finer details approaching the nanoscale with greater sensitivity requires the development of radically new sensor technology. Because of its atomic size, quantum-enhanced sensing capabilities afforded by long spin coherence times, and noninvasive nature the NV center is an excellent choice. Under a PECASE grant from the AFOSR, we have built the first cryogenic NV scanning probe magnetometer (SPM) and demonstrated noninvasive magnetic imaging of superconductors and skyrmionic materials down to 6 K with 3-?T/Hz1/2 field sensitivity. The range of open questions in condensed-matter physics that is yet be probed with this newly developed quantum imaging technology is extraordinarily diverse. With several improvements to our first-generation tool we will be able to address these questions inearnest.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 28, 2018
- Source ID
- FA95501810431
Entities
People
- Ania C. Bleszynski Jayich
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of California, Santa Barbara