نتایج جستجو برای: electronic band structure

تعداد نتایج: 1850878  

Journal: :Science 2006
Taisuke Ohta Aaron Bostwick Thomas Seyller Karsten Horn Eli Rotenberg

We describe the synthesis of bilayer graphene thin films deposited on insulating silicon carbide and report the characterization of their electronic band structure using angle-resolved photoemission. By selectively adjusting the carrier concentration in each layer, changes in the Coulomb potential led to control of the gap between valence and conduction bands. This control over the band structu...

Journal: :Physical review letters 2005
N Kozlova J Hagel M Doerr J Wosnitza D Eckert K-H Müller L Schultz I Opahle S Elgazzar Manuel Richter G Goll H von Löhneysen G Zwicknagl T Yoshino T Takabatake

We report on a field-induced change of the electronic band structure of CeBiPt as evidenced by electrical-transport measurements in pulsed magnetic fields. Above approximately 25 T, the charge-carrier concentration increases nearly 30% with a concomitant disappearance of the Shubnikov-de Haas signal. These features are intimately related to the Ce 4f electrons since for the non-4f compound LaBi...

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