Silicon Quantum Dots with Counted Antimony Donor Implants

Journal Article · Thu Oct 01 00:00:00 EDT 2015 · Sandia journal manuscript; Not yet accepted for publication

OSTI ID:1427277

Singh, Meenakshi ^[1]; Pacheco, Jose L. ^[1]; Perry, Daniel Lee ^[1]; Garratt, E. ^[1]; Ten Eyck, Gregory A. ^[1]; Wendt, Joel R. ^[1]; Manginell, Ronald P. ^[1]; Luhman, Dwight ^[1]; Bielejec, Edward S. ^[1]; Lilly, Michael ^[1]; Carroll, Malcolm S. ^[1]

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1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States). Center for Integrated Nanotechnologies

Deterministic control over the location and number of donors is crucial to donor spin quantum bits (qubits) in semiconductor based quantum computing. A focused ion beam is used to implant close to quantum dots. Ion detectors are integrated next to the quantum dots to sense the implants. The numbers of ions implanted can be counted to a precision of a single ion. Regular coulomb blockade is observed from the quantum dots. Charge offsets indicative of donor ionization, are observed in devices with counted implants.

• Research Organization: Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: AC04-94AL85000
• OSTI ID: 1427277
• Report Number(s): SAND-2015-8506J; 607206
• Journal Information: Sandia journal manuscript; Not yet accepted for publication, Journal Name: Sandia journal manuscript; Not yet accepted for publication; ISSN 9999-0014
• Publisher: Sandia
• Country of Publication: United States
• Language: English