Richard B Stephens, Xiao Liu Low-energy Excitations In Disordered Solids: A Story Of The `Universal` Phenomena Of Structural Tunneling 9789811217241

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Автор: Richard B Stephens, Xiao Liu
Название: Low-energy Excitations In Disordered Solids: A Story Of The `Universal` Phenomena Of Structural Tunneling
Перевод названия: Ричард Б. Стивенс, Сяо Лю: Низкоэнергетические возбуждения в неупорядоченных твёрдых телах. История
ISBN: 9789811217241
Издательство: World Scientific Publishing
Классификация:

Физика конденсированных сред (физика веществ в жидком и твёрдом состоянии)

ISBN-10: 9811217246
Обложка/Формат: Hardback
Страницы: 420
Вес: 0.73 кг.
Дата издания: 10.05.2021
Серия: Physics
Язык: English
Размер: 22.86 x 15.24 x 3.18 cm
Читательская аудитория: Tertiary education (us: college)
Ключевые слова: Condensed matter physics (liquid state & solid state physics), SCIENCE / Physics / Condensed Matter,TECHNOLOGY & ENGINEERING / Materials Science
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Поставляется из: Англии
Описание:

The subject of low-energy excitations has evolved since two-level-tunneling systems were first proposed 50 years ago. Initially they were used to explain the common anomalous properties of oxide glasses and polymers; now the subject includes a wide range of other materials containing disorder: amorphous semiconductors and metals, doped- mixed- and quasi-crystals, surface adsorbates, ... and topics such as dephasing of quantum states and interferometer noise. A fairly simple empirical description using a remarkably small range of parameters serves well to describe the effect of these excitations, but the structures causing these effects are known in only a few materials and the reasons for their similarity across disparate materials has only been qualitatively addressed.

This book provides a unified, comprehensive description of tunneling systems in disordered solids suitable for graduate students/researchers wishing an introduction to the field. Its focus is on the tunneling systems intrinsic to glassy solids. It describes the experimental observations of glassy properties, develops the basic empirical tunneling model, and discusses the dynamics changes on cooling to temperatures where direct excitation interactions become important and on heating to where tunneling gives way to thermal activation. Finally, it discusses how theories of glass formation can help us understand the ubiquity of these excitations.

The Development of the basic tunneling model is the core of the book and is worked out in considerable detail. To keep the total within bounds of our expertise and the readers patience, many related experimental and theoretical developments are only sketched out here; the text is heavily cited to allow readers to follow their specific interests in much more depth.

Low-energy Excitations In Disordered Solids: A Story Of The `Universal` Phenomena Of Structural Tunneling, Richard B Stephens, Xiao Liu