Chin. Phys. Lett.  1994, Vol. 11 Issue (1): 39-42    DOI:
Original Articles |
Magnetoplasmon-Polariton Modes of Finite Cantor-Type Heterostructures
LIU Nianhua1,2;FENG Weiguo1,3;WU Xiang1,3,4
1Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092 2Department of Physics, Jian Teachers Training College. Jian 343009 3Center of Theoretical Physics CCAST (World Laboratory) P. O. Box 8730, Beijing 100080 4International Center for Materials Physics, Academia Sinica, Shenyang 110015
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LIU Nianhua, FENG Weiguo, WU Xiang 1994 Chin. Phys. Lett. 11 39-42
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Abstract By using local theory and taking into account retardation, we investigate the plasmonpolariton modes of a finite Cantor-type heterostructures which are composed of two alternating materials with their thicknesses following Cantor sequence. The effects of an external magnetic field applied parallel to the interfaces are considered. We find that the modes have fractal structure due to the special geometry of the system, and the dispersion relations of the modes are strikingly modified by the external magnetic field. Some new modes appear because of the application of the field. By plotting the profiles of the amplitudes of the electric field, we also investigate the localization properties of the modes.

Keywords: 73.20.Mf      73.40.Ty      68.65.+g     
Published: 01 January 1994
PACS:  73.20.Mf (Collective excitations (including excitons, polarons, plasmons and other charge-density excitations))  
  73.40.Ty (Semiconductor-insulator-semiconductor structures)  
  68.65.+g  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1994/V11/I1/039
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