Malwin Jakob

High-resolution Rutherford backscattering spectrometry with an optimised solid-state detector

SG Robson, AM Jakob, D Holmes, SQ Lim, BC Johnson, DN Jamieson

Journal article  |  2021  |  NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

Rutherford Backscattering Spectrometry (RBS) is a powerful ion beam analysis technique in frequent use within materials science. T..

Conditional quantum operation of two exchange-coupled single-donor spin qubits in a MOS-compatible silicon device

Mateusz T Madzik, Arne Laucht, Fay E Hudson, Alexander M Jakob, Brett C Johnson, David N Jamieson, Kohei M Itoh, Andrew S Dzurak, Andrea Morello

Journal article  |  2021  |  NATURE COMMUNICATIONS

Silicon nanoelectronic devices can host single-qubit quantum logic operations with fidelity better than 99.9%. For the spins of an..

Controllable freezing of the nuclear spin bath in a single-atom spin qubit

Mateusz T Madzik, Thaddeus D Ladd, Fay E Hudson, Kohei M Itoh, Alexander M Jakob, Brett C Johnson, Jeffrey C McCallum, David N Jamieson, Andrew S Dzurak, Arne Laucht, Andrea Morello

Journal article  |  2020  |  SCIENCE ADVANCES

The quantum coherence and gate fidelity of electron spin qubits in semiconductors are often limited by nuclear spin fluctuations. ..

Electron spin relaxation of single phosphorus donors in metal-oxide-semiconductor nanoscale devices

Stefanie B Tenberg, Serwan Asaad, Mateusz T Madzik, Mark A Johnson, Benjamin Joecker, Arne Laucht, Fay E Hudson, Kohei M Itoh, A Malwin Jakob, Brett C Johnson, David N Jamieson, Jeffrey C McCallum, Andrew S Dzurak, Robert Joynt, Andrea Morello

Journal article  |  2019  |  PHYSICAL REVIEW B

We analyze the electron spin relaxation rate 1/T1 of individual ion-implanted P31 donors in a large set of metal-oxide-semiconduct..

Scalable quantum computing with ion-implanted dopant atoms in silicon

A Morello, G Tosi, FA Mohiyaddin, V Schmitt, V Mourik, T Botzem, A Laucht, JJ Pla, S Tenberg, R Savytskyy, M Madzik, F Hudson, AS Dzurak, KM Itoh, AM Jakob, BC Johnson, JC McCallum, DN Jamieson

Conference Proceedings  |  2018  |  2018 IEEE INTERNATIONAL ELECTRON DEVICES MEETING (IEDM)

We present a scalable strategy to manufacture quantum computer devices, by encoding quantum information in the combined electron-n..

Deterministic doping

David N Jamieson, William IL Lawrie, Simon G Robson, Alexander M Jakob, Brett C Johnson, Jeffrey C McCallum

Journal article  |  2017  |  MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING

Emerging programs in a new field of technology that employs quantum mechanical principles in engineered devices has driven new app..

Deterministic atom placement by ion implantation: Few and single atom devices for quantum computer technology

David N Jamieson, William IL Lawrie, Simon G Robson, A Melvin Jakob, Brett C Johnson, Jeff C McCallum, Fay E Hudson, Andrew S Dzurak, Andrea Morello

Conference Proceedings  |  2017  |  Proceedings of the 21st International Conference on Ion Implantation Technology (IIT)

We describe an approach to quantum computer technology based on engineered single donor atoms implanted into silicon. We exploit q..

Nanometer-resolved quantification of mechanical response in nanoparticle-based composites

M Hennes, AM Jakob, F Lehnert, U Ross, A Lotnyk, SG Mayr

Journal article  |  2016  |  NANOSCALE

Nanocomposites constitute an upcoming class of materials that has enormous potential within a broad range of areas, particularly w..

Nanoscale-resolved elasticity: contact mechanics for quantitative contact resonance atomic force microscopy.

AM Jakob, J Buchwald, B Rauschenbach, SG Mayr

Journal article  |  2014  |  Nanoscale

Contact resonance atomic force microscopy (CR-AFM) constitutes a powerful approach for nanometer-resolved mechanical characterizat..

Coupling of micromagnetic and structural properties across the martensite and curie temperatures in miniaturized Ni-Mn-Ga ferromagnetic shape memory alloys

AM Jakob, M Hennes, M Müller, D Spemann, SG Mayr

Journal article  |  2013  |  Advanced Functional Materials

Micromagnetic structure evolution in Ni-Mn-Ga ferromagnetic shape memory thin films is investigated by means of temperature depend..