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Título: | Identification and manipulation of defects in black phosphorus |
Autor: | Harsh, Rishav; Mondal, Sourav; Sharma, Devina; Bouatou, Mehdi; Chacon, Cyril; Ilyn, Max CSIC ORCID; Rogero, Celia CSIC ORCID; Repain, V.; Bellec, Amandine; Girard, Yann; Rousset, S.; Sankar, Raman; Pai, Woei Wu; Narasimhan, Shobhana; Lagoute, Jérôme | Fecha de publicación: | 2022 | Editor: | American Chemical Society | Citación: | Journal of Physical Chemistry Letters 13(27): 6276-6282 (2022) | Resumen: | We identify and manipulate commonly occurring defects in black phosphorus, combining scanning tunneling microscopy experiments with density functional theory calculations. A ubiquitous defect, imaged at negative bias as a bright dumbbell extending over several nanometers, is shown to arise from a substitutional Sn impurity in the second sublayer. Another frequently observed defect type is identified as arising from an interstitial Sn atom; this defect can be switched to a more stable configuration consisting of a Sn substitutional defect + P adatom, by application of an electrical pulse via the STM tip. DFT calculations show that this pulse-induced structural transition switches the system from a non-magnetic configuration to a magnetic one. We introduce States Projected Onto Individual Layers (SPOIL) quantities which provide information about atom-wise and orbital-wise contributions to bias-dependent features observed in STM images. | Versión del editor: | https://doi.org/10.1021/acs.jpclett.2c01370 | URI: | http://hdl.handle.net/10261/284450 | DOI: | 10.1021/acs.jpclett.2c01370 | E-ISSN: | 1948-7185 |
Aparece en las colecciones: | (CFM) Artículos |
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