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A challenge for the quantitative analysis of tropospheric nitrogen dioxide (NO 2) column data from satellite observations is posed mainly by the lack of satellite-independent observations for validation. We performed such observations of the tropospheric NO 2 column using the ground-based Multi-Axis Differential Optical Absorption Spectroscopy 5 (MAX-DOAS)(More)
conduct the thesis research on development of room temperature ballistic devices. His research interests include high-speed electron devices made of two-dimensional electron gas and quantum information processing in superconducting electronics. iii Acknowledgment The work represented in this thesis has been aided by the contributions of many people. First,(More)
—This paper presents a brief survey of the state of the art in nanoscale electronics, with special emphasis on room-temperature nanoscale ballistic deflection transistors (BDTs) and T-branch junctions (TBJs). Both devices are planar structures etched into a two-dimensional electron gas (2DEG). Extremely low capacitances (~0.2 fF) in the 2DEG system and low(More)
In many of today's most interesting materials, strong interactions prevail upon the magnetic moments, the electrons, and the crystal lattice, forming strong links between these different aspects of the system. Particularly, in two-dimensional cuprates, where copper is either five- or six-fold coordinated, superconductivity is commonly induced by chemical(More)
We have observed the well-kown quantum Hall effect (QHE) in epitaxial graphene grown on silicon carbide (SiC) by using, for the first time, only commercial NdFeB permanent magnets at low temperature. The relatively large and homogeneous magnetic field generated by the magnets, together with the high quality of the epitaxial graphene films, enables the(More)
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