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http://hdl.handle.net/2080/3475
Title: | Ambiguity Free Characterization of Metal-Insulator Transition in Disordered Fermionic Systems |
Authors: | Sahu, Deepak Kumar Datta, Sanjoy |
Keywords: | Metal-Insulator Transition Disordered Fermionic Systems |
Issue Date: | Dec-2019 |
Citation: | 64th DAE Solid State Physics Symposium, IIT Jodhpur, Rajasthan, India, 18-22 December 2019 |
Abstract: | Unambiguous characterization of metal insulator transi-tion in disordered system is an important problem. One of the most widely used indicator to do this charac-terization is inverse participation ratio (IPR). IPR can capture the signature of metal insulator transition but it is not free of ambiguity. However, a much more effec-tive and unambiguous approach to identify an insulating or metallic state is to use a localization tensor which is based on the idea of Kohn’s localization. We have stud-ied the one-dimensional Aubry-Andr`e model with cosine modulated disorders. We have used both rational and irrational modulation of the disorder potential to show that it is easier to conclude about the electronic state if localization tensor is used for characterization. |
Description: | Copyright belongs to proceeding publisher |
URI: | http://hdl.handle.net/2080/3475 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2019_DAE-SPSS_Poster_DKSahu_Ambiguity.pdf | Poster | 1.54 MB | Adobe PDF | View/Open |
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