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Far-field thermal radiation properties of graphene under uniaxial strain
Wen-Wu Xie1, Wen-Ri Qian1, Yong-Mei Zhang1,2
1College of Physics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, People's Republic of China.
Abstract:
Electronic band structure and optical conductivity of single-layer graphene could be altered by applied uniaxial strain. Valley and space inversion symmetries are broken. Dirac cones are deformed. We investigate the effect of uniaxial strain on the radiative properties of graphene from the perspective of direction and modulus. Optical conductivity exhibits wealthy phenomenon due to the degeneracy of the energy band broken by strain. The total energy radiation exhibits a novel behavior of periodicity inθ, in accordance with the symmetry of the hexagonal honeycomb lattice.
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