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Title: Ferroelastic modulation and the Bloch formalism

Abstract

The key to the development of advanced materials is to understand their electronic structure-property relationship. Utilization of this understanding to design new electronic materials with desired properties led to modern epitaxial growth approaches for synthesizing artificial lattices, which for almost half a century have become the mainstay of electronic and photonic technologies. In contrast to previous scalar modulation approaches, we now study synthetic crystal lattices that have a tensor artificial modulation and develop a theory for photons and conduction band states in these lattices in a regime with an unusual departure from the familiar consequences of translational symmetry and Bloch's theorem. As a result, this study reveals that a nonmagnetic crystal lattice modulated by a purely geometrical orientational superlattice potential can lead to localized states or to spiral states for electrons and photons, as well as weakly or strongly localized states that could be used to markedly slow down the propagation of light and for optical energy storage applications.

Authors:
ORCiD logo [1];  [1];  [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1371643
Report Number(s):
NREL/JA-5F00-68292
Journal ID: ISSN 2375-2548
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Accepted Manuscript
Journal Name:
Science Advances
Additional Journal Information:
Journal Volume: 3; Journal Issue: 6; Journal ID: ISSN 2375-2548
Publisher:
AAAS
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; condensed matter physics; electronic structure; semiconductor alloys; ferroelasticity; birefringence; localization

Citation Formats

Mascarenhas, Angelo, Fluegel, Brian, and Bhusal, Lekhnath. Ferroelastic modulation and the Bloch formalism. United States: N. p., 2017. Web. doi:10.1126/sciadv.1602754.
Mascarenhas, Angelo, Fluegel, Brian, & Bhusal, Lekhnath. Ferroelastic modulation and the Bloch formalism. United States. doi:10.1126/sciadv.1602754.
Mascarenhas, Angelo, Fluegel, Brian, and Bhusal, Lekhnath. Wed . "Ferroelastic modulation and the Bloch formalism". United States. doi:10.1126/sciadv.1602754. https://www.osti.gov/servlets/purl/1371643.
@article{osti_1371643,
title = {Ferroelastic modulation and the Bloch formalism},
author = {Mascarenhas, Angelo and Fluegel, Brian and Bhusal, Lekhnath},
abstractNote = {The key to the development of advanced materials is to understand their electronic structure-property relationship. Utilization of this understanding to design new electronic materials with desired properties led to modern epitaxial growth approaches for synthesizing artificial lattices, which for almost half a century have become the mainstay of electronic and photonic technologies. In contrast to previous scalar modulation approaches, we now study synthetic crystal lattices that have a tensor artificial modulation and develop a theory for photons and conduction band states in these lattices in a regime with an unusual departure from the familiar consequences of translational symmetry and Bloch's theorem. As a result, this study reveals that a nonmagnetic crystal lattice modulated by a purely geometrical orientational superlattice potential can lead to localized states or to spiral states for electrons and photons, as well as weakly or strongly localized states that could be used to markedly slow down the propagation of light and for optical energy storage applications.},
doi = {10.1126/sciadv.1602754},
journal = {Science Advances},
number = 6,
volume = 3,
place = {United States},
year = {2017},
month = {6}
}

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