Abstract: An electronic device includes a superconducting electrode configured to contain PdTe2 or PdTe and a transition metal dichalcogenide film laminated on the superconducting electrode.

Abstract: A quantum device includes: a higher-order topological insulator layer; and a superconductor layer. The higher-order topological insulator layer has a first surface and a second surface parallel to each other, a third surface that intersects with the second surface and is located closer to a first surface side than the second surface, and a fourth surface that intersects with the third surface and is parallel to the first surface and the second surface, and the superconductor layer is formed over an intersection line of a plane that includes the third surface and the first surface.

Abstract: A quantum device includes: a WTe2 layer; a first insulating layer; a second insulating layer; a first to third normal conducting metal electrodes; a first control circuit that controls a potential of the normal conducting metal electrodes; superconducting metal wiring; and a second control circuit that controls a superconducting phase difference of the superconducting metal wiring. The WTe2 layer has a first edge and a second edge that constitute a constricted portion, the constricted portion is provided between the first edge and the second edge, the first normal conducting metal electrode overlaps a portion of the first edge away from the constricted portion to one side, the second normal conducting metal electrode overlaps a portion of the first edge away from the constricted portion to another side, and the third normal conducting metal electrode overlaps a portion of the second edge away from the constricted portion to one side.

Abstract: A quantum bit circuit includes a first Majorana carrier that includes a first edge and extends in a first direction and a second Majorana carrier that includes a second edge and extends in a second direction intersecting with the first direction, in which the first Majorana carrier includes a first region where a Majorana particle can exist, in a portion of the first edge overlapping the second edge in plan view, the second Majorana carrier includes a second region where a Majorana particle can exist, in a portion of the second edge overlapping the first edge in plan view, and the Majorana particle in the first region and the Majorana particle in the second region are exchangeable.

Abstract: A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or an aryl group.

Abstract: A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or an aryl group.

Abstract: A nanoribbon includes a structure represented by a structural formula (8), where g, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or as aryl group.

Abstract: A graphene nanoribbon precursor having a structural formula represented by a following chemical formula (1), wherein in the following chemical formula (1): n is an integer greater than or equal to 0; X is bromine, iodine or chlorine; and Y is hydrogen or fluorine.

Abstract: A graphene nanoribbon precursor having a structural formula represented by a following chemical formula (1), wherein in the following chemical formula (1): n is an integer greater than or equal to 0; X is bromine, iodine or chlorine; and Y is hydrogen or fluorine.

Abstract: A nanoribbon includes a structure represented by a structural formula (8), where q, p, q, r, s, t, and u are mutually independent and are integers greater than or equal to 1, R1, R2, R3, R4, R5, R6, R7, and R8 are mutually independent and are one of a hydrogen. atom, a substituent, an alkyl moiety, a phenyl moiety, and a halogen atom, and A denotes a hydrogen atom or as aryl group.

Abstract: A graphene nanoribbon has a chiral edge to which a dicarbimide structure is bonded. The dicarbimide structure is an electron-withdrawing group. The width and band gap of the graphene nanoribbon are controlled by a precursor molecule used for a polymerization reaction. Furthermore, n-type operation of the graphene nanoribbon is realized by the dicarbimide structure. In addition, with the graphene nanoribbon, an increase in ribbon length and suppression of a polymerization defect by the stabilization of a reaction intermediate of the precursor molecule, as well as improvement in orientation are realized by the dicarbimide structure.

Abstract: A compound represented by the following general formula (1) is used as a precursor of a graphene nanoribbon: where X's are independent of each other and are leaving groups, R's are independent of one another and are hydrogen atoms, fluorine atoms, chlorine atoms, or 1-12C straight-chain, branched-chain, or cyclic alkyl groups, and each of p, q, r, and s is an integer in the range of 0 to 5.

Abstract: A compound represented by the following general formula (1) is used as a precursor of a graphene nanoribbon: where X's are independent of each other and are leaving groups, R's are independent of one another and are hydrogen atoms, fluorine atoms, chlorine atoms, or 1-12C straight-chain, branched-chain, or cyclic alkyl groups, and each of p, q, r, and s is an integer in the range of 0 to 5.

Abstract: A graphene nanoribbon has a chiral edge to which a dicarbimide structure is bonded. The dicarbimide structure is an electron-withdrawing group. The width and band gap of the graphene nanoribbon are controlled by a precursor molecule used for a polymerization reaction. Furthermore, n-type operation of the graphene nanoribbon is realized by the dicarbimide structure. In addition, with the graphene nanoribbon, an increase in ribbon length and suppression of a polymerization defect by the stabilization of a reaction intermediate of the precursor molecule, as well as improvement in orientation are realized by the dicarbimide structure.