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CMP
Credit: Jack Hobhouse

Professor John Gregg

Fellow & Tutor in Physics

Research theme

  • Quantum materials

Sub department

  • Condensed Matter Physics

Research groups

  • Spintronics
John.Gregg@physics.ox.ac.uk
  • About
  • Research
  • Current projects
  • Publications

Nanostructures for Spin Electronics

Chapter in Advanced Magnetic Nanostructures, Springer Nature (2006) 403-460

Authors:

PP Freitas, H Ferreira, R Ferreira, S Cardoso, Sebastiaan van Dijken, John Gregg
More details from the publisher

Position and electromagnetic field sensor

(2006)

Abstract:

A susceptibility sensor for detecting relative movement between an inhomogeneously-shaped object (80) to be sensed, and the sensor, comprising: a Robinson marginal oscillator (20) having a plurality of electrical properties; a tank circuit (30) connected to the Robinson marginal oscillator and …

Tunnel barrier fabrication on Si and its impact on a spin transistor

J MAGN MAGN MATER 290 (2005) 1383-1386

Authors:

CL Dennis, CV Tiusan, RA Ferreira, JF Gregg, GJ Ensell, SM Thompson, PP Freitas

Abstract:

The realization of many future spintronic devices requires efficient spin injection into semiconductor structures. A Critical considerations include interfacial intermixing of the metallic components and oxygen with Si, and the conditions for Schottky barrier formation. Both impact the design of a silicon-based spin transistor, which tunnel injects carriers from a ferromagnetic emitter into the Si base and then tunnel-collects them via a ferromagnetic collector. A discussion of the characteristics of this spin tunnel transistor will be presented, including its behavior and magnetic sensitivity. © 2004 Elsevier B.V. All rights reserved.
More details from the publisher

Structural and magnetic properties of thin manganite films grown on silicon substrates

Progress in Solid State Chemistry Elsevier 33:2-4 (2005) 293-298

Authors:

I Bergenti, V Dediu, E Arisi, M Cavallini, JF Moulin, F Biscarini, M De Jong, C Dennis, J Gregg
More details from the publisher

Silicon spin diffusion transistor: materials, physics and device characteristics

IEE PROCEEDINGS-CIRCUITS DEVICES AND SYSTEMS 152:4 (2005) 340-354

Authors:

CL Dennis, CV Tiusan, JF Gregg, GJ Ensell, SM Thompson
More details from the publisher

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