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Small Fermi surfaces and strong correlation effects in Dirac materials with holography

Title
Small Fermi surfaces and strong correlation effects in Dirac materials with holography
Author
서윤석
Keywords
Holography and condensed matter physics (AdS/CMT); Black Holes in String Theory
Issue Date
2017-10
Publisher
SPRINGER
Citation
JOURNAL OF HIGH ENERGY PHYSICS, no. 10, Article no. 204
Abstract
Recent discovery of transport anomaly in graphene demonstrated that a system known to be weakly interacting may become strongly correlated if system parameter (s) can be tuned such that fermi surface is sufficiently small. We study the strong correlation effects in the transport coefficients of Dirac materials doped with magnetic impurity under the magnetic field using holographic method. The experimental data of magneto-conductivity are well fit by our theory, however, not much data are available for other transports of Dirac material in such regime. Therefore, our results on heat transport, thermo-electric power and Nernst coefficients are left as predictions of holographic theory for generic Dirac materials in the vicinity of charge neutral point with possible surface gap. We give detailed look over each magneto-transport observable and 3Dplots to guide future experiments.
URI
https://link.springer.com/article/10.1007%2FJHEP10%282017%29204https://repository.hanyang.ac.kr/handle/20.500.11754/115779
ISSN
1029-8479
DOI
10.1007/JHEP10(2017)204
Appears in Collections:
RESEARCH INSTITUTE[S](부설연구소) > THE RESEARCH INSTITUTE FOR NATURAL SCIENCES(자연과학연구소) > Articles
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