دورية أكاديمية
Hyperbolic enhancement of photocurrent patterns in minimally twisted bilayer graphene.
| العنوان: | Hyperbolic enhancement of photocurrent patterns in minimally twisted bilayer graphene. |
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| المؤلفون: | Sunku SS; Department of Physics, Columbia University, New York, NY, 10027, USA.; Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, 10027, USA., Halbertal D; Department of Physics, Columbia University, New York, NY, 10027, USA. dh2917@columbia.edu., Stauber T; Departamento de Teoría y Simulación de Materiales, Instituto de Ciencia de Materiales de Madrid, CSIC, Madrid, 28049, Spain., Chen S; Department of Physics, Columbia University, New York, NY, 10027, USA., McLeod AS; Department of Physics, Columbia University, New York, NY, 10027, USA., Rikhter A; Department of Physics, University of California, San Diego, La Jolla, CA, 92093, USA., Berkowitz ME; Department of Physics, Columbia University, New York, NY, 10027, USA., Lo CFB; Department of Physics, Columbia University, New York, NY, 10027, USA., Gonzalez-Acevedo DE; Department of Physics, Columbia University, New York, NY, 10027, USA., Hone JC; Department of Mechanical Engineering, Columbia University, New York, NY, 10027, USA., Dean CR; Department of Physics, Columbia University, New York, NY, 10027, USA., Fogler MM; Department of Physics, University of California, San Diego, La Jolla, CA, 92093, USA., Basov DN; Department of Physics, Columbia University, New York, NY, 10027, USA. |
| المصدر: | Nature communications [Nat Commun] 2021 Mar 12; Vol. 12 (1), pp. 1641. Date of Electronic Publication: 2021 Mar 12. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Nature Pub. Group Country of Publication: England NLM ID: 101528555 Publication Model: Electronic Cited Medium: Internet ISSN: 2041-1723 (Electronic) Linking ISSN: 20411723 NLM ISO Abbreviation: Nat Commun Subsets: PubMed not MEDLINE; MEDLINE |
| أسماء مطبوعة: | Original Publication: [London] : Nature Pub. Group |
| مستخلص: | Quasi-periodic moiré patterns and their effect on electronic properties of twisted bilayer graphene have been intensely studied. At small twist angle θ, due to atomic reconstruction, the moiré superlattice morphs into a network of narrow domain walls separating micron-scale AB and BA stacking regions. We use scanning probe photocurrent imaging to resolve nanoscale variations of the Seebeck coefficient occurring at these domain walls. The observed features become enhanced in a range of mid-infrared frequencies where the hexagonal boron nitride substrate is optically hyperbolic. Our results illustrate the capabilities of the nano-photocurrent technique for probing nanoscale electronic inhomogeneities in two-dimensional materials. |
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| معلومات مُعتمدة: | N00014-18-1-2722 United States Department of Defense | United States Navy | Office of Naval Research (ONR) |
| تواريخ الأحداث: | Date Created: 20210313 Latest Revision: 20240331 |
| رمز التحديث: | 20240331 |
| مُعرف محوري في PubMed: | PMC7955135 |
| DOI: | 10.1038/s41467-021-21792-2 |
| PMID: | 33712611 |
| قاعدة البيانات: | MEDLINE |
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