Enhancing the resolution, sensitivity, and bandwidth of a quantum sensor for imaging technologically relevant materials
Abstract
With respect to the ONR BAA AMQ area of interest Metrologically Relevant Quantum States, our programseeks to enhance the capabilities~resolution and bandwidth~of a new quantum sensor that uses anatomic BEC for cryogenic scanning probe microscopy. The SQCRAMscope, Scanning Quantum CryogenicAtom Microscope, is capable of imaging transport in cryogenically cooled solid-state samples. As such,it opens a new frontier in quantum metrology and is the first example of the direct marriage of ultracoldAMO physics with condensed matter physics for the exploration of strongly correlated and topologicallynontrivial materials. This program~s effort will be to provide a factor of 100x improvement in magneticflux detectability~down to 10~8 flux quantum~by enhancing both imaging resolution and field sensitivitycompared to our existing system. This will, e.g., enable the first direct imaging of the electronic hydrodynamic,possibly turbulent flow in graphene or PdCoO2 above LN2 temperatures, the former being a materialunder intense study for technological applications. Moreover, we will seek to push beyond the present system~s DC-only field imaging capability to AC bandwidths up to 10 kHz via dispersive imaging and up to MHz using Rabi spectroscopy. Doing so will enable the study of, e.g., the simultaneous spatial and temporalbehavior of the electron nematic phase in high-Tc cuprate and pnictide (iron-based) superconductors. Therelationship of this phase to high-Tc superconductivity is unknown, perhaps suppressing, perhaps enhancingTc, but widely viewed as important to unraveling the mechanism underlying these technologically impactfulmaterials.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 03, 2017
- Source ID
- N000141712248
Entities
People
- Benjamin Lev
Organizations
- Office of Naval Research
- Stanford University
- United States Navy