{ "id": "2207.09444", "version": "v1", "published": "2022-07-19T17:58:30.000Z", "updated": "2022-07-19T17:58:30.000Z", "title": "Machine learning approach to genome of two-dimensional materials with flat electronic bands", "authors": [ "Anupam Bhattacharya", "Ivan Timokhin", "Ratnamala Chatterjee", "Qian Yang", "Artem Mishchenko" ], "categories": [ "cond-mat.mes-hall" ], "abstract": "Many-body physics of electron-electron correlations plays a central role in condensed mater physics, it governs a wide range of phenomena, stretching from superconductivity to magnetism, and is behind numerous technological applications. To explore this rich interaction-driven physics, two-dimensional (2D) materials with flat electronic bands provide a natural playground thanks to their highly localised electrons. Currently, thousands of 2D materials with computed electronic bands are available in open science databases, awaiting such exploration. Here we used a new machine learning algorithm combining both supervised and unsupervised machine intelligence to automate the otherwise daunting task of materials search and classification, to build a genome of 2D materials hosting flat electronic bands. To this end, a feedforward artificial neural network was employed to identify 2D flat band materials, which were then classified by a bilayer unsupervised learning algorithm. Such a hybrid approach of exploring materials databases allowed us to reveal completely new material classes outside the known flat band paradigms, offering new systems for in-depth study on their electronic interactions.", "revisions": [ { "version": "v1", "updated": "2022-07-19T17:58:30.000Z" } ], "analyses": { "keywords": [ "machine learning approach", "two-dimensional materials", "2d flat band materials", "materials hosting flat electronic", "hosting flat electronic bands" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }