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Ultrafast Electronic And Structural Dynamics In Solids


Ultrafast Electronic And Structural Dynamics In Solids
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Ultrafast Electronic And Structural Dynamics In Solids


Ultrafast Electronic And Structural Dynamics In Solids
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Author : Eli Nathan Glezer
language : en
Publisher:
Release Date : 1996

Ultrafast Electronic And Structural Dynamics In Solids written by Eli Nathan Glezer and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1996 with Laser pulses, Ultrashort categories.




Ultrafast Electronic And Structural Dynamics


Ultrafast Electronic And Structural Dynamics
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Author : Kiyoshi Ueda
language : en
Publisher: Springer
Release Date : 2024-08-12

Ultrafast Electronic And Structural Dynamics written by Kiyoshi Ueda and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2024-08-12 with Science categories.


This book illustrates advanced technologies for imaging electrons and atoms in action in various forms of matter, from atoms and diatoms to protein molecules and condensed matter. The technologies that are described employ ultrafast pulsed lasers, X-ray free electron lasers, and pulsed electron guns, with pulse durations from femtoseconds, suitable to visualize atoms in action, to attoseconds, needed to visualize ballistic electron motion. Advanced theories, indispensable for understanding such ultrafast imaging and spectroscopy data on electrons and atoms in action, are also described. The book consists of three parts. The first part describes probing methods of attosecond electron dynamics in atoms, molecules, liquids, and solids. The second part describes femtosecond structural dynamics and coupling of structural change and electron motion in molecules and solids The last part is dedicated to ultrafast photophysical processes and chemical reactions of protein molecules responsible for biological functions.



Ultrafast Electronic And Structural Dynamics In Solids Using Femtosecond Laser Techniques


Ultrafast Electronic And Structural Dynamics In Solids Using Femtosecond Laser Techniques
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Author : Jincheng Wang
language : en
Publisher:
Release Date : 2008

Ultrafast Electronic And Structural Dynamics In Solids Using Femtosecond Laser Techniques written by Jincheng Wang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2008 with categories.




Ultrafast Investigation Of Electronic And Structural Dynamics In Photomagnetic Molecular Solids


Ultrafast Investigation Of Electronic And Structural Dynamics In Photomagnetic Molecular Solids
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Author : Andrea Marino
language : en
Publisher:
Release Date : 2015

Ultrafast Investigation Of Electronic And Structural Dynamics In Photomagnetic Molecular Solids written by Andrea Marino and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.


The ability to photo-switch physical/chemical properties of functional materials through photo induced phase transition opens fascinating perspectives for driving the material towards new state out of thermal equilibrium. However, it is fundamental to disentangle and understand all the dynamical phenomena, otherwise hidden in statistically averaged macroscopic transformations. Arguably, time-resolved studies are unique approach to access the necessary information on the multiple degrees of freedom and elementary processes involved during the macroscopic switching. As photo-reversible molecular switches, spin crossover (SCO) materials are of particular interest. These photomagnetic and photochromic prototype materials undergo metastable photoinduced phase transition between two states of different spin multiplicity, namely low-spin (LS) and high-spin (HS). In this PhD work it will be presented the ultrafast electronic and structural dynamics of SCO molecular solids emphasizing the importance of using complementary probes sensitive to different degrees of freedom. The photoinduced spin state switching concerns initially only an ultrafast, but localized, molecular response which through strong electron-phonon coupling activates coherent intra-molecular vibrations. An ultrafast energy transfer from the molecule to the lattice, via phonon-phonon coupling, allows an efficient trapping of the system in the new photoinduced state. However in molecular solids, the excess of energy released from the absorber molecule results in a complex multi-scale aspect involving several degrees of freedom at different time scales. In this contest, we investigated the multi-step out-of equilibrium dynamics of a SCO system undergoing symmetry breaking between the HS phase and the intermediate (IP) phase where a long range ordering of HS and LS molecules results in a spin state concentration wave (SSCW), analogous to charge or spin density waves. Combined time-resolved X-ray diffraction and optical spectroscopy studies provide a complete overview of the out-of-equilibrium thermodynamics of the SSCW, investigating how the two order parameters describing the system evolve in time.



Electron Lattice Interactions And Ultrafast Structural Dynamics Of Solids


Electron Lattice Interactions And Ultrafast Structural Dynamics Of Solids
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Author : Lutz Waldecker
language : en
Publisher:
Release Date : 2015

Electron Lattice Interactions And Ultrafast Structural Dynamics Of Solids written by Lutz Waldecker and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.




Ultrafast Electronic And Structural Dynamics


Ultrafast Electronic And Structural Dynamics
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Author : Kiyoshi Ueda
language : en
Publisher: Springer Nature
Release Date :

Ultrafast Electronic And Structural Dynamics written by Kiyoshi Ueda and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on with categories.




Dynamics At Solid State Surfaces And Interfaces Volume 2


Dynamics At Solid State Surfaces And Interfaces Volume 2
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Author : Uwe Bovensiepen
language : en
Publisher: John Wiley & Sons
Release Date : 2012-05-21

Dynamics At Solid State Surfaces And Interfaces Volume 2 written by Uwe Bovensiepen and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-05-21 with Science categories.


This two-volume work covers ultrafast structural and electronic dynamics of elementary processes at solid surfaces and interfaces, presenting the current status of photoinduced processes. Providing valuable introductory information for newcomers to this booming field of research, it investigates concepts and experiments, femtosecond and attosecond time-resolved methods, as well as frequency domain techniques. The whole is rounded off by a look at future developments.



Ultrafast Carrier And Structural Dynamics In Graphite Detected Via Attosecond Soft X Ray Absorption Spectroscopy


Ultrafast Carrier And Structural Dynamics In Graphite Detected Via Attosecond Soft X Ray Absorption Spectroscopy
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Author : Nicola Di Palo
language : en
Publisher:
Release Date : 2020

Ultrafast Carrier And Structural Dynamics In Graphite Detected Via Attosecond Soft X Ray Absorption Spectroscopy written by Nicola Di Palo and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with categories.


Understanding most of the physical and chemical phenomena determining the world around us requires the possibility to interrogate their main characters on their natural scale in space and time. The insulating or conductive behavior of matter, its magnetic properties or the nature of chemical bonds are strongly dependent on the nuclear and electronic structure of the atoms, molecules or solids considered. Hence, tools are needed to probe electrons and nuclei directly at the atomic scale with a temporal resolution allowing the observation of electron dynamics (on the attosecond-to-femtosecond timescale) and structural dynamics (on the femtosecond-to-picosecond timescale) in real time.Attosecond science offers unique opportunities to investigate electronic and structural dynamics at the heart of important processes in atomic, molecular and solid-state physics. The generation of attosecond bursts of light, in the form of train of pulses or of isolated pulses, has been achieved on table-top sources by exploiting the high-order harmonic generation (HHG) process. The photons constituting the attosecond emission have energies that range from the extreme ultra-violet (XUV) up to the soft X-ray (SXR) region of the spectrum, allowing to interrogate the electronic structure of the probed material directly at the level of the inner electronic shells. Because of this property of accessing the characteristic electronic structure of the elements constituting the target, XUV and, especially, SXR spectroscopy are considered element-specific techniques. Attosecond pulses have already proven to be able to observe ultrafast phenomena in atoms, molecules or solids previously inaccessible.In this thesis, the application of time-resolved X-ray absorption fine-structure (XAFS) spectroscopy using attosecond SXR pulses to the study of carrier and structural dynamics in graphite is reported. In chapter 1, an introduction to the field of attoscience and the presentation of the state of the art of ultrafast dynamics in graphite are given. The established technique to generate attosecond pulses is described and a review of the most significant application of attosecond pulses to the study of electron dynamics is presented. The electronic and structural properties of graphite are then discussed, highlighting some of the most representative experiments detecting electron and lattice dynamics.The experimental setup developed at ICFO in the group of Prof. Dr. Jens Biegert and used for this Ph.D. thesis project is described in details in chapter 2. The system needed for the generation, propagation and detection of the attosecond SXR radiation is presented. The performances of the SXR source in terms of spectral tunability, photon flux and stability are discussed. The implementation of a IR pump - SXR probe scheme is reported, allowing beams' recombination in both collinear and non-collinear fashion. To conclude, the results of an attosecond streaking experiment are presented, through which a temporal characterization of the HHG emission has been achieved.A discussion on the spectroscopic capabilities of XAFS technique to interrogate the electronic and lattice structure of the observed material is presented in chapter 3. The potential of this technique has been demonstrated with an experimental investigation of a graphite thin film, with the results showing the possibility to probe the first unoccupied electronic bands and the characteristic distances defining the lattice structure.Finally, the XAFS capabilities have been exploited in a time-resolved experimental study of graphite to observe light-induced carrier and lattice dynamics, presented in chapter 4. The interpretation of the experimental data reveals insights on the ultrafast interaction of the pump laser field with charge carriers and on the effects of carrier-carrier and carrier-phonon scattering following photoexcitation.



Dynamics At Solid State Surfaces And Interfaces Volume 1


Dynamics At Solid State Surfaces And Interfaces Volume 1
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Author : Uwe Bovensiepen
language : en
Publisher: John Wiley & Sons
Release Date : 2010-11-29

Dynamics At Solid State Surfaces And Interfaces Volume 1 written by Uwe Bovensiepen and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-11-29 with Science categories.


This two-volume work covers ultrafast structural and electronic dynamics of elementary processes at solid surfaces and interfaces, presenting the current status of photoinduced processes. Providing valuable introductory information for newcomers to this booming field of research, it investigates concepts and experiments, femtosecond and attosecond time-resolved methods, as well as frequency domain techniques. The whole is rounded off by a look at future developments.



Electronic Structure Dynamics And Quantum Structural Properties Of Condensed Matter


Electronic Structure Dynamics And Quantum Structural Properties Of Condensed Matter
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Author : Jozef T. Devreese
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-11-21

Electronic Structure Dynamics And Quantum Structural Properties Of Condensed Matter written by Jozef T. Devreese and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-11-21 with Science categories.


The 1984 Advanced Study Institute on "Electronic Structure, Dynamics and Quantum Structural Properties of Condensed Matter" took place at the Corsendonk Conference Center, close to the City of Antwerpen, from July 16 till 27, 1984. This NATO Advanced Study Institute was motivated by the research in my Institute, where, in 1971, a project was started on "ab-initio" phonon calculations in Silicon. I~ is my pleasure to thank several instances and people who made this ASI possible. First of all, the sponsor of the Institute, the NATO Scientific Committee. Next, the co-sponsors: Agfa-Gevaert, Bell Telephone Mfg. Co. N.V., C & A, Esso Belgium·, CDC Belgium, Janssens Pharmaceutica, Kredietbank and the Scientific Office of the U.S. Army. Special thanks are due to Dr. P. Van Camp and Drs. H. Nachtegaele, who, over several months, prepared the practical aspects of the ASI with the secretarial help of Mrs. R.-M. Vandekerkhof. I also like to. thank Mrs. M. Cuyvers who prepared and organized the subject and material index and Mrs. H. Evans for typing-assist ance. I express particular gratitude to Mrs. F. Nedee, who, like in 1981 and 1982, has put the magnificent Corsendonk Conference Center at our disposal and to Mr. D. Van Der Brempt, Director of the Corsendonk Conference Center, for the efficient way in which he and his staff took care of the practical organization at the Conference Center.