Cyclotron Resonances in Graphite by Using Circularly Polarized Radiation
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概要
- 論文の詳細を見る
Cyclotron resonances in single crystal graphite (SCG) and pyrolytic graphite (PG) have been investigated at about 23 and 69 GHz. A sequence of harmonic resonances is observed for either sense of circular polarization, while the fundamental resonance is found for the polarization sensitive to electron. These resonances are analysed to originate from the electron Fermi surface centered at K-point in the Brillouin zone, of which large trigonal warping is deduced. The observed cyclotron masses are m_e/m_o= 0.058±0.001 (at 69.08GHz) for SCG and 0.059±0.001 (at 68.01GHz) for PG. Two kinds of additive structures in SCG, one being observed at 23 GHz and the other at 69GHz, are discused after the theoretical study by Uda, Ushio and Uemura of a nonlocal effect of the hole resonance and an electron-hole interaction, respectively. Each resonance field has the angular dependence of (cosθ)^<-1>, where θ is the angle between the applied magnetic field and the hexagonal axis.
- 社団法人日本物理学会の論文
- 1972-12-05
著者
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Tanuma Sei-ichi
The Institute For Solid State Physics University Of Tokyo:faculty Of Technology Gunma University
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Tanuma Sei-ichi
The Institute For Solid State Physics The University Of Tokyo
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Suematsu Hiroyoshi
The Institute For Solid State Physics The University Of Tokyo
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Tanuma Sei-ichi
The Institute Of Solid State Physics The University Of Tokyo
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Suematsu Hiroyoshi
The Institute Of Solid State Physics The University Of Tokyo
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