Pressure driven structural phase transitions and modulations in optical properties of lanthanum nitride: an account from on the fly molecular dynamics and SCF vis-à-vis non-SCF first-principle calculations

Author:

Banik Rati Ray,Ghosh Swarup,Chowdhury JoydeepORCID

Abstract

Abstract The paper is focused to explore the pressure induced structural phase transitions and modulations of optical properties of lanthanum nitride (LaN) for the first time with the aid of first-principle density functional theory and Born–Oppenheimer on the fly molecular dynamics calculations. Crystal structures, Gibbs free energies and phonon dispersion spectra of the compound in its various phases under ambient and external pressures have been critically investigated. The key phonon modes responsible for these pressure driven transitions have also been unveiled. Electronic band structures and associated optoelectronic properties of the systems have been studied in detail from both the self-consistent field and non-self-consistent field calculations. The early signature of topological insulator for the high pressure phase of LaN has been addressed from the electronic band structure calculations. We believe that this study will not only help for futuristic designs of improved functionalized systems with LaN compound but also can augment their applications such as pressure sensors, pressure conducting switches, dissipationless transistors and in optoelectronic devices.

Publisher

IOP Publishing

Subject

Condensed Matter Physics,Mathematical Physics,Atomic and Molecular Physics, and Optics

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3