Please use this identifier to cite or link to this item:
http://hdl.handle.net/2080/4219
Title: | Evidence of Linear and Cubic Rashba Effect in Non-Magnetic Heterostructure |
Authors: | Bhattacharya, Sanchari Datta, Sanjoy |
Keywords: | non-magnetic heterostructure spin-orbitronics Rashba photogalvanic effect |
Issue Date: | Nov-2023 |
Citation: | Annual Conference on Quantum Condensed Matter, NISER, Bhubaneswar, 27th - 30th November 2023 |
Abstract: | The LaAlO3/KTaO3 system serves as a prototype to study the electronic properties that emerge as a result of spin-orbit coupling. In this article, we have used firstprinciples calculations to systematically study two types of defect-free (0 0 1) interfaces, which are termed as Type-I and Type-II. While the Type-I heterostructure produces a two dimensional electron gas, the Type-II heterostructure hosts an oxygenrich two dimensional hole gas at the interface. Furthermore, in the presence of intrinsic spin-orbit coupling, we have found evidence of both cubic and linear Rashba interactions in the conduction bands of the Type-I heterostructure. On the contrary, there is spin-splitting of both the valence and the conduction bands in the Type-II interface, which are found to be only linear Rashba type. Interestingly, the Type-II interface also harbours a potential photocurrent transition path, making it an excellent platform to study the circularly polarized photogalvanic effect. |
Description: | Copyright belongs to proceeding publisher |
URI: | http://hdl.handle.net/2080/4219 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2023_ACQCM_SBhattacharya_Evidence.pdf | 16.71 MB | Adobe PDF | View/Open Request a copy |
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