Read-out and coherent manipulation of an isolated nuclear spin [electronic resource] : using a single-molecule magnet spin-transistor / Stefan Thiele.
Thiele, Stefan, author.
2016
QC793.3.S6
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Title Read-out and coherent manipulation of an isolated nuclear spin [electronic resource] : using a single-molecule magnet spin-transistor / Stefan Thiele.
Author Thiele, Stefan, author.
ISBN 9783319240589 (electronic book)
3319240587 (electronic book)
9783319240565
DOI https://doi.org/10.1007/978-3-319-24058-9
Published Cham : Springer, [2016]
Copyright ©2016
Language English
Description 1 online resource.
Item Number 10.1007/978-3-319-24058-9 doi
Call Number QC793.3.S6
Dewey Decimal Classification 539.725
Summary This thesis sheds new light on the worldwide first electrical manipulation of a single nuclear spin. Over the last four decades, the size of a bit, the smallest logical unit in a computer, has decreased by more than two orders of magnitude and will soon reach a limit where quantum phenomena become important. Inspired by the power of quantum mechanics, researchers have already identified pure quantum systems, having, analog to a classical bit, two controllable and readable states. In this regard, the inherent spin of electrons or nuclei with its two eigenstates, spin up and spin down, is a promising candidate. Using expertise in the field of single-molecule magnets, the author developed a molecular transistor, which allows quantum information to be written onto a single nuclear spin by means of an electric field only, and, in addition, enables the electronic read-out of this quantum state. This novel approach opens a path to addressing and manipulating individual nuclear spins within a very confined space (a single molecule), at high speed. Thus, the author was able to show that single molecule magnets are promising candidates for quantum information processing, which is triggering a new field of research towards molecular quantum electronics.
Note "Doctoral thesis accepted by the University of Grenoble, France."
Access Note Access limited to authorized users.
Digital File Characteristics text file PDF
Source of Description Online resource; title from PDF title page (viewed December 16, 2015).
Series Springer theses.
Available in Other Form Read-Out and Coherent Manipulation of an Isolated Nuclear Spin : Using a Single-Molecule Magnet Spin-Transistor.
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Supervisor's Foreword; Abstract; Acknowledgements; Contents; 1 Introduction; 1.1 Molecular Spintronics; 1.2 Quantum Information Processing; 1.3 Thesis Outline; References; 2 Single Electron Transistor; 2.1 Equivalent Circuit; 2.2 Coulomb Blockade; 2.3 Cotunneling Effect; 2.4 Kondo Effect; References; 3 Magnetic Properties of TbPc2; 3.1 Structure of TbPc2; 3.2 Electronic Configuration of Tb3+; 3.3 Zeeman Effect; 3.4 Electron-Electron Interaction; 3.5 Spin-Orbit Interaction; 3.6 Ligand-Field Interaction; 3.7 Hyperfine Interaction; 3.8 Magnetization Reversal.

3.8.1 Quantum Tunneling of Magnetization3.8.2 Direct Transtions; References; 4 Experimental Details; 4.1 Overview Setup; 4.2 Dilution Refrigerator; 4.3 3D Vector Magnet; 4.4 Current Leads; 4.5 Sample Holder; 4.6 Filter; 4.6.1 Low Frequency Filters; 4.6.2 High Frequency Filters; 4.7 Signal Transducer; 4.8 Real-Time Data Acquisition; 4.9 Sample Fabrication; 4.9.1 Nanowire Fabrication; 4.9.2 Electromigration; 4.9.3 Fabrication of a Molecular Spin Transistor; References; 5 Single-Molecule Magnet Spin-Transistor; 5.1 Mode of Operation; 5.2 Read-Out Quantum Dot.

5.3 Magneto-Conductance and Anisotropy5.4 Exchange Coupling; 5.5 2D Magneto-Conductance of the Read-Out Dot; 5.6 Electronic Spin Relaxation; 5.7 Quantum Tunneling of Magnetization; 5.8 Summary; References; 6 Nuclear Spin Dynamics
T1; 6.1 Signal Analysis; 6.2 Relaxation Time T1 and Read-Out Fidelity F; 6.3 Quantum Monte Carlo Simulations; 6.3.1 Algorithm; 6.3.2 Including the Experimental Boundaries; 6.4 Comparison Experiment
Simulation; 6.4.1 Relaxation Mechanism; 6.4.2 Dynamical Equilibrium; 6.4.3 Selection Rules; 6.5 Summary; References; 7 Nuclear Spin Dynamics
Tast2; 7.1 Introduction.

7.1.1 Rabi Oscillations7.1.2 Hyperfine Stark Effect; 7.2 Coherent Nuclear Spin Rotations; 7.2.1 Frequency Calibration; 7.2.2 Rabi Oscillations; 7.3 Experimental Discussion of the Hyperfine Stark Effect; 7.3.1 DC Gate Voltage Induced Hyperfine Stark Effect; 7.3.2 AC Induced Hyperfine Stark Effect; 7.4 Theoretical Discussion of the Hyperfine Stark Effect; 7.5 Dephasing Time T*2; 7.5.1 Introduction; 7.5.2 Experimental Results; 7.5.3 Outlook; 7.6 Summary; References; 8 Conclusion and Outlook; References; Appendix ASpin; Appendix BStevens Operators; Appendix CQuantum Monte Carlo Code.

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