Alexandria Digital Research Library

Nanometer-scale engineering of shallow spins in diamond

Author:
Ohno, Kenichi
Degree Supervisor:
Christopher J. Palmstrom and David D. Awschalom
Place of Publication:
[Santa Barbara, Calif.]
Publisher:
University of California, Santa Barbara
Creation Date:
2014
Issued Date:
2014
Topics:
Nanotechnology and Engineering, Materials Science
Keywords:
CVD
Diamond
Crystal growth
NV center
Magnetic sensing
Spin
Genres:
Online resources and Dissertations, Academic
Degree Grantor:
University of California, Santa Barbara. Materials
Dissertation:
Ph.D.--University of California, Santa Barbara, 2014
Description:

A crystal growth technique enabling to control the depth of a single nitro-gen-vacancy (NV) center at nanometer scale in diamond is developed. This nitrogen delta-doping technique during the plasma-enhanced chemical vapor deposition (PE-CVD) of diamond enables to create near-surface NV centers whose depths ranging from about 100 nm down to less than 2 nm while preserving their spin coherence times.

These shallowly doped, long-coherence NV centers are used as an atomic-scale magnetic sensor that enables to detect nuclear spin signal from an organic sample of a nanometer-scale volume external to the diamond crystal. Extension of this nanometer-scale nuclear magnetic resonance (nanoNMR) to two-dimensional nanometer-scale magnetic resonance imaging (2D nanoMRI) is also presented.

The nitrogen delta-doping technique is combined with shallow 12C ion implantation through lithographically-patterned apertures to demonstrate three-dimensional (3D) localization of single NV centers at nanometer scale. The demonstrated long spin coherence times of 3D-localized NV centers pave a way towards quantum applications by maximizing their interactions to the diamond-based nanostructures.

Physical Description:
1 online resource (301 pages)
Format:
Text
Collection(s):
UCSB electronic theses and dissertations
ARK:
ark:/48907/f3wd3xr5
ISBN:
9781321568349
Catalog System Number:
990045118710203776
Rights:
Inc.icon only.dark In Copyright
Copyright Holder:
Kenichi Ohno
File Description
Access: Public access
Ohno_ucsb_0035D_12384.pdf pdf (Portable Document Format)