Local Investigation Of Single Magnetic Molecules With Scanning Tunneling Microscopy

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Local Investigation Of Single Magnetic Molecules With Scanning Tunneling Microscopy

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Author : Chen, Jinjie
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-01-18

Local Investigation Of Single Magnetic Molecules With Scanning Tunneling Microscopy written by Chen, Jinjie and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-01-18 with Molecules categories.

We worked on different magnetic molecules containing 3d and 4f magnetic centers. Their growth on metallic surfaces, topographies, spin states, magnetic properties and electron transport were locally investigated by using scanning tunneling microscopy (STM) at temperatures down to 30mK. The main achievement of this dissertation reveals the abrupt switching of crystal fields during formation of molecular contacts.

Local Investigation Of Single Magnetic Molecules With Scanning Tunneling Microscopy

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Author : Jinjie Chen
language : en
Publisher:
Release Date : 2020-10-09

Local Investigation Of Single Magnetic Molecules With Scanning Tunneling Microscopy written by Jinjie Chen and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020-10-09 with Science categories.

We worked on different magnetic molecules containing 3d and 4f magnetic centers. Their growth on metallic surfaces, topographies, spin states, magnetic properties and electron transport were locally investigated by using scanning tunneling microscopy (STM) at temperatures down to 30mK. The main achievement of this dissertation reveals the abrupt switching of crystal fields during formation of molecular contacts. This work was published by Saint Philip Street Press pursuant to a Creative Commons license permitting commercial use. All rights not granted by the work's license are retained by the author or authors.

Local Probing Of A Superconductor S Quasiparticles And Bosonic Excitations With A Scanning Tunnelling Microscope

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Author : Gozlinski, Thomas
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-03-24

Local Probing Of A Superconductor S Quasiparticles And Bosonic Excitations With A Scanning Tunnelling Microscope written by Gozlinski, Thomas and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-03-24 with Science categories.

Complementary to scattering techniques, scanning tunnelling microscopy provides atomic-scale real space information about a material's electronic state of matter. State-of-the-art designs of a scanning tunnelling microscope (STM) allow measurements at millikelvin temperatures with unprecedented energy resolution. Therefore, this instrument excels in probing the superconducting state at low temperatures and especially its local quasiparticle excitations as well as bosonic degrees of freedom.

Light Emission From Single Self Decoupled Molecules In A Scanning Tunnelling Microscope

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Author : Rai, Vibhuti Narayan
language : en
Publisher: KIT Scientific Publishing
Release Date : 2022-10-04

Light Emission From Single Self Decoupled Molecules In A Scanning Tunnelling Microscope written by Rai, Vibhuti Narayan and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2022-10-04 with Science categories.

In this work, a clear pathway is presented to achieve well-defined electronically decoupled chromophores from metallic leads without requiring additional insulating layers. To study such self-decoupled molecules, STM equipped with an efficient light detection setup has been used. Results show that the chromophores mounted on tripodal molecular platforms adsorbed on a gold surface present well-defined and efficient electroluminescence down to the single-molecule level.

Sub Kelvin Scanning Tunneling Microscopy On Magnetic Molecules

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Author : Zhang, Lei
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-07-05

Sub Kelvin Scanning Tunneling Microscopy On Magnetic Molecules written by Zhang, Lei and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-07-05 with Science categories.

Molecular Motor Based On Single Chiral Tripodal Molecules Studied With Stm

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Author : Skolaut, Julian
language : en
Publisher: KIT Scientific Publishing
Release Date : 2023-09-14

Molecular Motor Based On Single Chiral Tripodal Molecules Studied With Stm written by Skolaut, Julian and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-14 with categories.

This work presents a single molecular motor driven by the current in an STM. Its chiral functional group is supposed to perform a rotation in a preferred direction, proven by Binomial tests to be statistically significant. The rotation is proposedly driven by the chiral-induced spin selectivity effect (CISS). However, the studies of the rotation on the dependence on the lateral tip position, voltage and current indicate that he CISS is unlikely to cause the preferred rotation direction.

Quantum Sensing Experiments With Superconducting Qubits

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Author : Schneider, Andre
language : en
Publisher: KIT Scientific Publishing
Release Date : 2021-06-04

Quantum Sensing Experiments With Superconducting Qubits written by Schneider, Andre and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-06-04 with Science categories.

Quantum sensing is a vast and emerging field enabling in-situ studies of quantum systems and hence the development of quantum hybrid systems. This work creates the fundament of direct superconducting-magnetic hybrid systems by developing a local microwave sensing scheme and studying the influence of a static magnetic field on a superconducting qubit. Finally, a proof-of-principle hybrid system is demonstrated, which opens the path towards superconducting-magnetic quantum circuits.

Investigation Of A Metal Organic Interface Realization And Understanding Of A Molecular Switch

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Author : Olga Neucheva
language : en
Publisher: Forschungszentrum Jülich
Release Date : 2010

Investigation Of A Metal Organic Interface Realization And Understanding Of A Molecular Switch written by Olga Neucheva and has been published by Forschungszentrum Jülich this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.

Elastic And Inelastic Scanning Tunneling Spectroscopy On Iron Based Superconductors

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Author : Jandke, Jasmin Maria
language : en
Publisher: KIT Scientific Publishing
Release Date : 2019-05-02

Elastic And Inelastic Scanning Tunneling Spectroscopy On Iron Based Superconductors written by Jandke, Jasmin Maria and has been published by KIT Scientific Publishing this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-05-02 with Physics categories.

Within this work, the pairing mechanism of conventional (Pb) and unconventional superconductors (SrFe2(As1-xPx )2 , FeSe, FeSe/STO) was investigated experimentally by means of elastic and inelastic tunneling spectroscopy at temperatures down to 30 mK. The distinction between elastic and inelastic contributions to tunneling data was elaborated. The results help to identify conventional (phonon-mediated) and unconventional (e.g. spin-?uctuation mediated) superconductivity.

Scanning Tunneling Spectroscopy Of Magnetic Bulk Impurities

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Author : Henning Prüser
language : en
Publisher: Springer
Release Date : 2014-07-23

Scanning Tunneling Spectroscopy Of Magnetic Bulk Impurities written by Henning Prüser and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-23 with Science categories.

Magnetic impurities in a non-magnetic host metal have been actively explored in condensed matter physics in recent last decades. From both fundamental and applied viewpoints these systems are very interesting because they can exhibit strong electronic correlations that give rise to various fascinating phenomena beyond the single particle picture. Up to now our understanding of the underlying processes remains limited due to difficulties involved in measuring these systems on a microscopic scale. With their unique control, scanning tunneling microscopy (STM) and spectroscopy (STS) allow for the first time investigations of phenomena occurring on very small length and energy scales. Here, single magnetic iron and cobalt atoms embedded beneath a metal surface are investigated using these techniques. In particular, the transition from single impurity Kondo physics to two interacting impurities is studied in real space. This thesis contains a comprehensive description of the STM /STS technique, sub-surface impurities, as well as single- and two-impurity Kondo physics - and as such offers a valuable introduction to newcomers to the field.