Theoretical Methods for Excitonic Physics in 2D Materials
نویسندگان
چکیده
In this Perspective article, the reader is introduced to several theoretical methods of determining exciton wave functions and corresponding eigenenergies. The covered are either analytical, semianalytical, or numeric. All details associated with different made explicit, thus allowing newcomers do research on their own, without experiencing a steep learning curve. starts variational method ends simple semianalytical approach solve Bethe–Salpeter equation (BSE) in gapped 2D materials. For first addressed Perspective, authors focus single layer hexagonal boron nitride (hBN) transition metal dichalcogenide (TMD), as these exemplary materials field excitons. explaining method, biased bilayer graphene, which presents tunable bandgap chosen. system has right amount complexity (without being excessive). This allows presentation solution context that can be easily generalized more complex systems apply it simpler models.
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ژورنال
عنوان ژورنال: Physica Status Solidi B-basic Solid State Physics
سال: 2022
ISSN: ['1521-3951', '0370-1972']
DOI: https://doi.org/10.1002/pssb.202200097