The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 16, 2016
Filed:
Jul. 22, 2009
Geoffrey Alan Scarsbrook, Ascot, GB;
Daniel James Twitchen, Bracknell, GB;
Matthew Lee Markham, Maidenhead, GB;
Geoffrey Alan Scarsbrook, Ascot, GB;
Daniel James Twitchen, Bracknell, GB;
Matthew Lee Markham, Maidenhead, GB;
Element Six Technologies Limited, Didcot, GB;
Abstract
A solid state system comprising a host material and a quantum spin defect, wherein the quantum spin defect has a Tat room temperature of about 300 μs or more and wherein the host material comprises a layer of single crystal CVD diamond having a total nitrogen concentration of about 20 ppb or less, wherein the surface roughness, Rof the single crystal diamond within an area defined by a circle of radius of about 5 μm centered on the point on the surface nearest to where the quantum spin defect is formed is about 10 nm or less, methods for preparing solid state systems and the use of single crystal diamond having a total nitrogen concentration of about 20 ppb or less in spintronic applications are described.