منابع مشابه
MIXED VALENT SEMICONDUCTORS : SmB6
An overview is given of the experimental and theoretical evidence that SmB, is a homogeneously mixed valent semiconductor. It is emphasized that the experimental transport properties imply that the Fermi surface is either extremely small or non-existent, and that rather general theoretical considerations support the possibility of a gap at the Fermi level.
متن کاملObservation of the Superconducting Proximity Effect in the Surface State of SmB6 Thin Films
Surface State of SmB6 Thin Films Seunghun Lee, Xiaohang Zhang, Yangang Liang, Sean W. Fackler, Jie Yong, Xiangfeng Wang, Johnpierre Paglione, Richard L. Greene, and Ichiro Takeuchi Department of Materials Science and Engineering, University of Maryland, College Park, Maryland 20742, USA Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, M...
متن کاملPolarity-driven surface metallicity in SmB6.
By a combined angle-resolved photoemission spectroscopy and density functional theory study, we discover that the surface metallicity is polarity driven in SmB6. Two surface states, not accounted for by the bulk band structure, are reproduced by slab calculations for coexisting B6 and Sm surface terminations. Our analysis reveals that a metallic surface state stems from an unusual property, gen...
متن کاملGround State EntanglementEnergetics
We consider the ground state of simple quantum systems coupled to an environment. In general the system is entangled with its environment. As a consequence, even at zero temperature, the energy of the system is not sharp: a projective measurement can find the system in an excited state. We show that energy fluctuation measurements at zero temperature provide entanglement information. For two-st...
متن کاملGround State Electroluminescence.
Electroluminescence, the emission of light in the presence of an electric current, provides information on the allowed electronic transitions of a given system. It is commonly used to investigate the physics of strongly coupled light-matter systems, whose eigenfrequencies are split by the strong coupling with the photonic field of a cavity. Here we show that, together with the usual electrolumi...
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ژورنال
عنوان ژورنال: Scientific Reports
سال: 2020
ISSN: 2045-2322
DOI: 10.1038/s41598-020-58172-7