Emergent States in Photoinduced Charge-Density-Wave Transitions
Title | Emergent States in Photoinduced Charge-Density-Wave Transitions PDF eBook |
Author | Alfred Zong |
Publisher | |
Pages | 0 |
Release | 2021 |
Genre | |
ISBN | 9783030817527 |
This book advances understanding of light-induced phase transitions and nonequilibrium orders that occur in a broken-symmetry system. Upon excitation with an intense laser pulse, materials can undergo a nonthermal transition through pathways different from those in equilibrium. The mechanism underlying these photoinduced phase transitions has long been researched, but many details in this ultrafast, non-adiabatic regime still remain to be clarified. The work in this book reveals new insights into this phenomena via investigation of photoinduced melting and recovery of charge density waves (CDWs). Using several time-resolved diffraction and spectroscopic techniques, the author shows that the light-induced melting of a CDW is characterized by dynamical slowing-down, while the restoration of the symmetry-breaking order features two distinct timescales: A fast recovery of the CDW amplitude is followed by a slower re-establishment of phase coherence, the latter of which is dictated by the presence of topological defects in the CDW. Furthermore, after the suppression of the original CDW by photoexcitation, a different, competing CDW transiently emerges, illustrating how a hidden order in equilibrium can be unleashed by a laser pulse. These insights into CDW systems may be carried over to other broken-symmetry states, such as superconductivity and magnetic ordering, bringing us one step closer towards manipulating phases of matter using a laser pulse.
Emergent States in Photoinduced Charge-Density-Wave Transitions
Title | Emergent States in Photoinduced Charge-Density-Wave Transitions PDF eBook |
Author | Alfred Zong |
Publisher | Springer Nature |
Pages | 234 |
Release | 2021-09-17 |
Genre | Science |
ISBN | 3030817512 |
This book advances understanding of light-induced phase transitions and nonequilibrium orders that occur in a broken-symmetry system. Upon excitation with an intense laser pulse, materials can undergo a nonthermal transition through pathways different from those in equilibrium. The mechanism underlying these photoinduced phase transitions has long been researched, but many details in this ultrafast, non-adiabatic regime still remain to be clarified. The work in this book reveals new insights into this phenomena via investigation of photoinduced melting and recovery of charge density waves (CDWs). Using several time-resolved diffraction and spectroscopic techniques, the author shows that the light-induced melting of a CDW is characterized by dynamical slowing-down, while the restoration of the symmetry-breaking order features two distinct timescales: A fast recovery of the CDW amplitude is followed by a slower re-establishment of phase coherence, the latter of which is dictated by the presence of topological defects in the CDW. Furthermore, after the suppression of the original CDW by photoexcitation, a different, competing CDW transiently emerges, illustrating how a hidden order in equilibrium can be unleashed by a laser pulse. These insights into CDW systems may be carried over to other broken-symmetry states, such as superconductivity and magnetic ordering, bringing us one step closer towards manipulating phases of matter using a laser pulse.
Emergent Micro- and Nanomaterials for Optical, Infrared, and Terahertz Applications
Title | Emergent Micro- and Nanomaterials for Optical, Infrared, and Terahertz Applications PDF eBook |
Author | Song Sun |
Publisher | CRC Press |
Pages | 444 |
Release | 2022-10-27 |
Genre | Technology & Engineering |
ISBN | 1000772594 |
Driven by continuing pursuits in device miniaturization and performance improvement, emergent micro- and nanomaterials hold the keys to enabling next-generation technologies in optical, infrared, and terahertz applications, owing to their unique properties and strong responses in these frequency bands. Development of these fascinating materials has triggered a number of opportunities in the applied sciences, and some have even made their impact in the market. Emergent Micro- and Nanomaterials for Optical, Infrared, and Terahertz Applications reviews state-of-the-art developments in various emergent materials and their implementation in applications such as sensors, waveplates, communications, and light sources, among others. The book discusses the similarities, advantages, and limitations and offers a comparative of each material. This volume: Covers all emergent materials (natural and artificial) that are promising for optical, infrared, and terahertz applications Comparatively analyzes these materials, elucidating their unique advantages, limitations, and application scopes Provides an up-to-date record on achievements and progress in cutting-edge optical, infrared, and terahertz applications Offers a comprehensive overview to connect multidisciplinary fields, such as materials, physics, and optics, to serve as a basis for future progress This book is a valuable reference for engineers, researchers, and students in the areas of materials and optics, as well as physics, and will benefit both junior- and senior-level researchers.
Photoinduced Dynamics in the Charge Density Wave Compound 4HB-TaSe2
Title | Photoinduced Dynamics in the Charge Density Wave Compound 4HB-TaSe2 PDF eBook |
Author | Nicolas Erasmus |
Publisher | |
Pages | |
Release | 2013 |
Genre | |
ISBN |
Stress Dependence of the Charge-density Wave Transitions in NbSe3 and TaS3
Title | Stress Dependence of the Charge-density Wave Transitions in NbSe3 and TaS3 PDF eBook |
Author | Robert Sheldon Lear |
Publisher | |
Pages | 80 |
Release | 1983 |
Genre | Elastic waves |
ISBN |
Domain-like incommensurate charge-density-wave states and the first-order incommensurate-commensurate transitions in layered tantalum dichalcogenides
Title | Domain-like incommensurate charge-density-wave states and the first-order incommensurate-commensurate transitions in layered tantalum dichalcogenides PDF eBook |
Author | Kazuo Nakanishi |
Publisher | |
Pages | 29 |
Release | 1978 |
Genre | |
ISBN |
Emergent Phenomena in Correlated Matter
Title | Emergent Phenomena in Correlated Matter PDF eBook |
Author | Eva Pavarini |
Publisher | Forschungszentrum Jülich |
Pages | 562 |
Release | 2013 |
Genre | |
ISBN | 3893368841 |