Polarization dependence of x-ray absorption spectra in graphene
We calculate the x-ray absorption spectra (XAS) for 1s-π ∗ and 1s-σ ∗ transitions in single layer graphene using the dipole approximation and we compare with experimental results. It is found that the in-plane and out-of-plane orientations of the dipole vectors, which correspond to the 1s-π∗ and...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Physical Society
2012
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| Online Access: | http://hdl.handle.net/1721.1/72089 https://orcid.org/0000-0001-8492-2261 |
| _version_ | 1826193913302482944 |
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| author | Dresselhaus, Mildred Chowdhury, M. T. Saito, Riichiro |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Dresselhaus, Mildred Chowdhury, M. T. Saito, Riichiro |
| author_sort | Dresselhaus, Mildred |
| collection | MIT |
| description | We calculate the x-ray absorption spectra (XAS) for 1s-π
∗ and 1s-σ
∗ transitions in single layer graphene
using the dipole approximation and we compare with experimental results. It is found that the in-plane and out-of-plane orientations of the dipole vectors, which correspond to the 1s-π∗ and 1s-σ∗ transitions, respectively, are responsible for the polarization dependence of the x-ray absorption intensity in graphene. Using the atomic
matrix elements, the low-energy XAS peaks can be assigned. |
| first_indexed | 2024-09-23T09:47:16Z |
| format | Article |
| id | mit-1721.1/72089 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T09:47:16Z |
| publishDate | 2012 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/720892022-09-26T13:42:03Z Polarization dependence of x-ray absorption spectra in graphene Dresselhaus, Mildred Chowdhury, M. T. Saito, Riichiro Massachusetts Institute of Technology. Department of Physics Dresselhaus, Mildred S. Dresselhaus, Mildred We calculate the x-ray absorption spectra (XAS) for 1s-π ∗ and 1s-σ ∗ transitions in single layer graphene using the dipole approximation and we compare with experimental results. It is found that the in-plane and out-of-plane orientations of the dipole vectors, which correspond to the 1s-π∗ and 1s-σ∗ transitions, respectively, are responsible for the polarization dependence of the x-ray absorption intensity in graphene. Using the atomic matrix elements, the low-energy XAS peaks can be assigned. Japan. Ministry of Education, Culture, Sports, Science and Technology (grant no. 20241023) National Science Foundation (U.S.) (grant no. NSF-DMR 10-04147) 2012-08-10T12:52:39Z 2012-08-10T12:52:39Z 2012-03 2011-10 Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/72089 Chowdhury, M., R. Saito, and M. Dresselhaus. “Polarization Dependence of X-ray Absorption Spectra in Graphene.” Physical Review B 85.11 (2012): 115410. © 2012 American Physical Society https://orcid.org/0000-0001-8492-2261 en_US http://dx.doi.org/10.1103/PhysRevB.85.115410 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Dresselhaus, Mildred Chowdhury, M. T. Saito, Riichiro Polarization dependence of x-ray absorption spectra in graphene |
| title | Polarization dependence of x-ray absorption spectra in graphene |
| title_full | Polarization dependence of x-ray absorption spectra in graphene |
| title_fullStr | Polarization dependence of x-ray absorption spectra in graphene |
| title_full_unstemmed | Polarization dependence of x-ray absorption spectra in graphene |
| title_short | Polarization dependence of x-ray absorption spectra in graphene |
| title_sort | polarization dependence of x ray absorption spectra in graphene |
| url | http://hdl.handle.net/1721.1/72089 https://orcid.org/0000-0001-8492-2261 |
| work_keys_str_mv | AT dresselhausmildred polarizationdependenceofxrayabsorptionspectraingraphene AT chowdhurymt polarizationdependenceofxrayabsorptionspectraingraphene AT saitoriichiro polarizationdependenceofxrayabsorptionspectraingraphene |