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Theory of Generation and Conversion of Phonon Angular Momentum: Springer Theses

Autor Masato Hamada
en Limba Engleză Paperback – 19 ian 2022
This book presents a theoretical study of the generation and conversion of phonon angular momentum in crystals.
Recently, rotational motions of lattice vibrations, i.e., phonons, in crystals attract considerable attentions. As such, the book theoretically demonstrate generations of phonons with rotational motions, based on model calculations and first-principle calculations. In systems without inversion symmetry, the phonon angular momentum is shown to be caused by the temperature gradient, which is demonstrated in crystals such as wurtzite gallium nitride, tellurium, and selenium using the first-principle calculations. In systems with neither time-reversal nor inversion symmetries, the phonon angular momentum is shown to be generated by an electric field. Secondly, the book presents the microscopic mechanisms developed by the author and his collaborator on how these microscopic rotations of nuclei are coupled with electron spins. These predictions serve as building blocks forspintronics with phonons or mechanical motions.
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Specificații

ISBN-13: 9789813346925
ISBN-10: 9813346922
Ilustrații: XII, 93 p. 25 illus., 23 illus. in color.
Dimensiuni: 155 x 235 mm
Greutate: 0.16 kg
Ediția:1st ed. 2021
Editura: Springer Nature Singapore
Colecția Springer
Seria Springer Theses

Locul publicării:Singapore, Singapore

Cuprins

Introduction.- Background.- Phonon Thermal Edelstein Effect.- Magnetoelectric Effect for Phonons.- Conversion Between the Electron Spin and the Microscopic Atomic Rotation.- Conclusion.

Textul de pe ultima copertă

This book presents a theoretical study of the generation and conversion of phonon angular momentum in crystals.
Recently, rotational motions of lattice vibrations, i.e., phonons, in crystals attract considerable attentions. As such, the book theoretically demonstrate generations of phonons with rotational motions, based on model calculations and first-principle calculations. In systems without inversion symmetry, the phonon angular momentum is shown to be caused by the temperature gradient, which is demonstrated in crystals such as wurtzite gallium nitride, tellurium, and selenium using the first-principle calculations. In systems with neither time-reversal nor inversion symmetries, the phonon angular momentum is shown to be generated by an electric field. Secondly, the book presents the microscopic mechanisms developed by the author and his collaborator on how these microscopic rotations of nuclei are coupled with electron spins. These predictions serve as building blocks for spintronics with phonons or mechanical motions.

Caracteristici

Nominated as an outstanding Ph.D. thesis by the Tokyo Institute of Technology, Japan Includes new predictions on novel phenomena related to the phonon angular momentum that await experimental observations Features physics of phonon angular momentum, including its generation, observation, and conversion to other degrees of freedom