Observation of Superconductivity in Epitaxially Grown Atomic Layers
In Situ Electrical Transport Measurements
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Beschreibung
This thesis presents first observations of superconductivity in one- or two-atomic-scale thin layer materials. The thesis begins with a historical overview of superconductivity and the electronic structure of two-dimensional materials, and mentions that these key ingredients lead to the possibility of the two-dimensional superconductor with high phase-transition temperature and critical magnetic field. Thereafter, the thesis moves its focus onto the implemented experiments, in which mainly two different materials thallium-deposited silicon surfaces and metal-intercalated bilayer graphenes, are used. The study of the first material is the first experimental demonstration of both a gigantic Rashba effect and superconductivity in the materials supposed to be superconductors without spatial inversion symmetry. The study of the latter material is relevant to superconductivity in a bilayer graphene, which was a big experimental challenge for a decade, and has been first achieved by the author.
The description of the generic and innovative measurement technique, highly effective in probing electric resistivity of ultra-thin materials unstable in an ambient environment, makes this thesis a valuable source for researchers not only in surface physics but also in nano-materials science and other condensed-matter physics.
Nominated as an outstanding contribution by the University of Tokyo in 2016
Presents the first observations of superconductivity in one- or two-atomic-layer material
Provides an overview from individual development of bulk superconductivity and surface physics to atomic-scale-thin layer superconductivity
Reviews the novel electrical resistivity measurement for materials unstable in an ambient environment
Nominated as an outstanding contribution by the University of Tokyo in 2016 Presents the first observations of superconductivity in one- or two-atomic-layer material Provides an overview from individual development of bulk superconductivity and surface physics to atomic-scale-thin layer superconductivity Reviews the novel electrical resistivity measurement for materials unstable in an ambient environment Includes supplementary material: sn.pub/extras
Autor*in
Satoru Ichinokura
Themen in »Observation of Superconductivity in Epitaxially Grown Atomic Layers«
Two-dimensional superconductor Rashba effect and superconductivity Metal-induced surface reconstructions of semiconductors Superconductivity of bilayer graphene In situ measurement technique in an ultrahigh vacuum