FieldsElectronic structure and electrical properties of surfaces and nanostructures

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Twist in the Tale: Exploring the Dielectric Screening Effect in Twisted Bilayer Graphene
2022112
Although the screening of an external electric field, strongly influences the electronic states of twodimensional material stack, it is not well understood. Magnetotransport measurements of twisted double bilayer graphene uncovered the screening of atomic layers.
Electronic structure and electrical properties of surfaces and nanostructures
Electronic transport in condensed matter

Analyzing Photoinduced Phase Transitions in an Organic Salt Using Floquet Theory
2021115
Rich nonequilibrium phase diagrams, including photoinduced topological insulator phases, were theoretically predicted for an organic salt α(BEDTTTF)_{2}I_{3} when irradiated by elliptically polarized light.
Electronic structure and electrical properties of surfaces and nanostructures
Dielectric, optical, and other properties in condensed matter

Electronic Structure Transformation in a Magnetized Topological Semimetal
2021106
We theoretically show that the nodal structures in topological semimetals, including Weyl points and nodal lines, can be switched by magnetic orders, accompanied by localized states at magnetic domain walls.
Electronic structure and electrical properties of surfaces and nanostructures

Nonlinear Thermoelectric Transport Will Open a New and Exotic Way to Detect Topological Nature of Dirac Electrons in Solids
2021825
Recently, it was proposed that a novel nonlinear anomalous Ettingshausen effect enabled a new and exotic approach to observe topological nature of Dirac electrons in solids using thermoelectric properties.
Electronic transport in condensed matter
Electronic structure and electrical properties of surfaces and nanostructures
Structure and mechanical and thermal properties in condensed matter

How a Potentially Novel Effect Converts AC Current into DC Heat Flow
2021524
A novel currentinduced thermoelectric phenomenon, the nonlinear anomalous Ettingshausen effect, was discussed. As an example, the weak charge ordering state in an organic conductor α(BEDTTTF)_{2}I_{3} was focused on. This effect generates a transverse heat current with rectifying characteristics, namely unidirectionality even under AC fields.
Electronic transport in condensed matter
Electronic structure and electrical properties of surfaces and nanostructures
Structure and mechanical and thermal properties in condensed matter

Magnetic Responses of Majorana Kramers Pairs on TimeReversal Invariant Topological Superconductors
202133
We reveal magnetic degrees of freedom of Majorana fermions and find a new type of response that are distinct from those of conventional electrons.
Superconductivity
Electronic structure and electrical properties of surfaces and nanostructures