Description: Description: Description: C:\DATA\back-up\UW\data\SEM\EBL\miao\Dec13\ring100nm11min1x37.tif

A tiny diamond ring

(400 nm OD, 100 nm width)

Description: Description: Description: C:\DATA\back-up\UW\data\SEM\EBL\miao\Dec13\rings100nm11min1.2x86.tif

Concentric diamond rings

(100nm line width)

Description: Description: Description: C:\DATA\back-up\UW\data\SEM\EBL\miao\Dec13\array100nm11min1.2x72.tif

Array of diamond nano-pillars

(100nm diameter)

Description: Description: C:\DATA\back-up\UW\data\SEM\EBL\miao\Dec13\letter100nm11min1x56.tifNano “QNC” cut out of diamond

(100 nm line width)

CV

The lab

The group

 

 

Useful Links

    IQC

    E&CE

    UW

 

Modern technology has evolved to a stage such that careful manipulation of a small group of electrons, or even a single electron, is no longer a formidable task. Our research focuses on a particular aspect of the electrons – their spin degrees of freedom. We construct spin-based nanoelectronic (a.k.a., spintronic) devices with improved performances and scalability by taking advantage of the interplay between a few fundamental spin systems: magnetism, superconductivity, and the quantum spin Hall state. Our program has a strong emphasis on the development of novel materials, in search for an ideal platform that will take us to an era beyond silicon.

    

Research Interests:

*      Topological quantum computing on low-dimensional spin systems

*      Spin memory and logic devices

*      Spiontronics for neuromorphic computing

 

Funding:

>        Quantum quest seed fund, Transformative Quantum Technologies (TQT)

>        Transformative Quantum Technologies, CFREF

>        Ontario Early Researcher Awards

>        ECE department research stimulation grant

>        NSERC, Discovery

>        NCERC, Engage

 

Courses: (please log in to your LEARN account to access the course notes and updates)

         NE226                “Characterization of Materials”

         ECE730-T19      “Magnetism and Spintronics

         NANO701          “Solid State Physics and Chemistry”

         NANO702          “Nanoscale Phenomena”

         ECE403              “Thermodynamics”

         ECE630              “Physics and Models of Semiconductor Devices”

         NANO600          “Introduction to Nanotechnology”

         NANO601          “Characterization of Nanomaterials”

         ECE 231             “Semiconductor Physics and Devices”

         ECE 405D          “Superconducting Quantum Circuits”

Very dense array of nano-pillars

Description: Description: C:\DATA\back-up\UW\ebooks\Docs\Lab\Plasma.jpg

H2/CH4 Plasma in diamond PECVD

KOH_12min_edge7

Anisotropic wet etching on Si

(viewed from a cleaved edge, mask width 2µm, spacing 2µm)

KOH 1.5w 13d 10min0

Anisotropic wet etching on Si

(viewed from a cleaved edge, depth 13µm, mask width 1.5µm)

line2.5w 10d 20cycle 1

Anisotropic dry etching on Si  - mask width 1.5µm, trench depth 10µm

Anisotropic dry etching on Si  - mask width 1.5µm, trench depth 25µm

dot2.5w 17d 40cycle9

Anisotropic dry etching on Si  - mask diameter 1.5µm, pillar depth 17µm

300nm line 20cycle 0

Anisotropic dry etching on Si  - mask width 300nm, trench depth 2µm