Conical Diffraction: Conical Diffraction from Approximate Dirac Cone States in a Superhoneycomb Lattice (Ann. Phys. 11/2019)

In article number 1900295, Yiqi Zhang and co‐workers investigate conical diffraction in the superhoneycomb lattice, based on the continuous model. To excite Dirac cone states, the lattice is cut along short‐bearded boundaries and the states close to the Dirac points are obtained, which are called th...

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Bibliographic Details
Published inAnnalen der Physik Vol. 531; no. 11
Main Authors Kang, Yongfeng, Zhong, Hua, Belić, Milivoj R., Tian, Yiqing, Jin, Kaichao, Zhang, Yanpeng, Li, Fuli, Zhang, Yiqi
Format Journal Article
LanguageEnglish
Published Weinheim Wiley Subscription Services, Inc 01.11.2019
Subjects
Cones
Diffraction
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Summary:In article number 1900295, Yiqi Zhang and co‐workers investigate conical diffraction in the superhoneycomb lattice, based on the continuous model. To excite Dirac cone states, the lattice is cut along short‐bearded boundaries and the states close to the Dirac points are obtained, which are called the approximated Dirac cone states. Conical diffraction due to both pseudospin‐1/2 and pseudospin‐1 Dirac cones is displayed graphically and discussed theoretically. The avenue to observe conical diffraction developed here avoids mathematical complexity and is quite direct.
ISSN:0003-3804
1521-3889
DOI:10.1002/andp.201970040