Ferroelectric Perovskite Structures Under Non-Equilibrium Conditions: A First-Principles-Based Computational Approach

Zhang, Qingteng; Zhang, Qingteng

ISBN 10: 3659252468 / ISBN 13: 9783659252464

Verlag: Lap Lambert Academic Publishing, 2012

68 pages. 8.66x5.91x0.16 inches. In Stock. Bestandsnummer des Verkäufers 3659252468

Inhaltsangabe:

Ferroelectric materials have received lots of attention thanks to their intriguing properties such as the piezoelectric and pyroelectric effects, as well as the large dielectric constants and the spontaneous polarization which can potentially be used for information storage. In particular, perovskite crystal has a very simple unit cell structure yet a very rich phase transition diagram, which makes it one of the most intensively studied ferroelectric materials. In this work, we use effective Hamiltonian, a first-principles-based computational technique to study the finite-temperature properties of ferroelectric perovskites. We studied ferroelectric perovskite crystals under two kinds of non-equilibrium situations: Temperature gradient and AC field along out-of-plane direction. Such studies reveal intriguing physics of ferroelectric perovskites and may lead to potential applications in various devices, such as thermal sensors, energy converters, or novel memory units.

Über die Autorin bzw. den Autor: Qingteng Zhang received his Bachelor's degree in Electrical Engineering at Xi'An Jiaotong University in July, 2009 and his Ph.D. in Physics at University of South Florida in September, 2012. He currently has two first-author papers in Physical Review Letters and have spoken at three international conferences.

Bibliografische Details

Titel: Ferroelectric Perovskite Structures Under ...
Verlag: Lap Lambert Academic Publishing
Erscheinungsdatum: 2012
Einband: Paperback
Zustand: Brand New