Accession Number:

AD1096611

Title:

Scanning Magnetometry of Low Dimensional Electronic Systems

Descriptive Note:

Technical Report,01 May 2016,30 Apr 2019

Corporate Author:

The Regents of the University of California, Santa Barbara Santa Barbara United States

Personal Author(s):

• Young,Andrea F.

Report Date:

2019-07-29

Pagination or Media Count:

8.0

Abstract:

The project successfully built and qualified a scanning probe microscope for magnetic and thermal imaging that operates at temperatures between 1.6-7.2K and in magnetic fields up to several tesla. We have used this to image a variety of materials, most notably atomically thin insulating ferromagnets, with one paper in preparation. We have also, in the course of our studies of twisted graphene heterostructures, made a major discovery of a new form of orbital magnetism supporting quantized electrical transport at zero magnetic field. This latter has far reaching applications for resistance metrology as well as ultra-low power electrically switchable magnetic memory storage.

Descriptors:

• magnetic fields
• magnetometers
• measurement
• quantum properties
• magnetometry
• current density
• hall effect
• domain walls
• magnetization
• ceramic materials
• detectors

Subject Categories:

• Electrical and Electronic Equipment
• Quantum Theory and Relativity

Distribution Statement:

APPROVED FOR PUBLIC RELEASE