## Read-Out and Coherent Manipulation of an Isolated Nuclear Spin: Using a Single-Molecule Magnet Spin-TransistorThis 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. |

### What people are saying - Write a review

We haven't found any reviews in the usual places.

### Contents

1 | |

2 Single Electron Transistor | 13 |

3 Magnetic Properties of TbPc2 | 23 |

4 Experimental Details | 39 |

5 SingleMolecule Magnet SpinTransistor | 69 |

6 Nuclear Spin DynamicsT1 | 87 |

7 Nuclear Spin DynamicsTast2 | 105 |

8 Conclusion and Outlook | 133 |

Appendix ASpin | 137 |

Appendix BStevens Operators | 145 |

Appendix CQuantum Monte Carlo Code | 147 |

Appendix DQutip Code | 154 |

Curriculum Vitae | 158 |

### Other editions - View all

Read-Out and Coherent Manipulation of an Isolated Nuclear Spin: Using a ... Stefan Thiele No preview available - 2019 |

Read-Out and Coherent Manipulation of an Isolated Nuclear Spin: Using a ... Stefan Thiele No preview available - 2015 |

### Common terms and phrases

amplitude anticrossing avoided level crossings Bloch sphere chemical potential Coherent Manipulation coil conductance jump cryostat detection devices electric field electromigration electronic spin energy excited experimental external magnetic field filters function gate voltage ground Hamiltonian histogram hyperfine coupling hyperfine interaction hyperfine Stark effect Isolated Nuclear Spin Kondo effect Lett ligand field magnetic field magnetic moment matrix measurements molecular spin-transistor molecule magnet momentum nanowire noise nuclear qubit nuclear spin qubit nuclear spin trajectory operator orbital phonon Phys QTM transition quantum computer quantum dot quantum tunneling Rabi frequency Rabi oscillations read-out dot read-out quantum dot rotating sample shown in Fig signal transducer simulated single electron single nuclear spin single-molecule magnet source and drain spin reversal spin-orbit coupling spintronics splitting Stark effect sweeping the magnetic Tb3+ TbPc2 temperature terbium terbium ion thermal transistor tunneling of magnetization vector magnet wavefunction Wernsdorfer zero