ICTS:29127

Video URL

CT- Site-selective polar compensation of Mott electrons in a double perovskite heterointerface

CT- Site-selective polar compensation of Mott electrons in a double perovskite heterointerface

(2024). CT- Site-selective polar compensation of Mott electrons in a double perovskite heterointerface. SciVideos. https://youtube.com/live/z-DduHH4Jx8

CT- Site-selective polar compensation of Mott electrons in a double perovskite heterointerface. SciVideos, Jul. 16, 2024, https://youtube.com/live/z-DduHH4Jx8 

          @misc{ scivideos_ICTS:29127,
            doi = {},
            url = {https://youtube.com/live/z-DduHH4Jx8},
            author = {},
            keywords = {},
            language = {en},
            title = {CT- Site-selective polar compensation of Mott electrons in a double perovskite heterointerface},
            publisher = {},
            year = {2024},
            month = {jul},
            note = {ICTS:29127 see, \url{https://scivideos.org/icts-tifr/29127}}
          }
Nandana Bhattacharya
Talk numberICTS:29127
Source RepositoryICTS-TIFR
Source EventEngineered 2D Quantum Materials
Collection

Abstract

Double perovskite oxides (DPOs) with two transition metal ions (A2BB′O6) offer a fascinating platform for exploring exotic physics and practical applications. Studying these DPOs as ultrathin epitaxial thin films on single crystalline substrates can add another dimension to engineering electronic, magnetic, and topological phenomena. Understanding the consequence of polarity mismatch between the substrate and the DPO would be the first step towards this broad goal. We investigate this by studying the interface between a prototypical insulating DPO Nd2NiMnO6 and a wide-band gap insulator SrTiO3. The interface is found to be insulating in nature. By combining several experimental techniques and density functional theory, we establish a site- selective charge compensation process that occurs explicitly at the Mn site of the film, leaving the Ni sites inert. We further demonstrate that such surprising selectivity, which cannot be explained by existing mechanisms of polarity compensation, i...