Electrical and optical devices incorporating topological materials including topological insulators
First Claim
1. An electrical device, comprising:
- an integrated circuit comprising a current transport layer formed using a layer of a topological insulator material, wherein the topological insulator material has an insulating energy band gap in the bulk and conducting edge or surface states,the layer of topological insulator material having a width of at least 10nm;
a first electrode formed on the integrated circuit and in electrical contact with the current transport layer at a first location;
a second electrode formed on the integrated circuit and in electrical contact with the current transport layer at a second location;
a first circuit connected to a first electrode; and
a second circuit connected to the second electrode,the first circuit, the second circuit, the first electrode, the second electrode, and the layer of topological insulator material being configured to carry current in either direction between the first circuit and the second circuit,wherein the layer of the topological insulator material contains magnetic doping, andwherein the topological insulator material is selected from the group of;
(1) HgTe;
(2) a compound comprising at least two of Bi, Sb, Te, and Se;
(3) a ternary Heusler compound;
(4) AmN; and
(5) PuTe.
1 Assignment
0 Petitions
Accused Products
Abstract
An electrical device includes a current transport layer formed using a layer of a topological material selected from the group of a topological insulator, a quantum anomalous hall (QAH) insulator, a topological insulator variant, and a topological magnetic insulator. In one embodiment, the current transport layer forms a conductive wire on an integrated circuit where the conductive wire includes two spatially separated edge channels, each edge channel carrying charge carriers propagating in one direction only. In other embodiments, an optical device includes an optical layer formed using a layer of the topological material. The optical layer can be a light absorbing layer, a light emitting layer, a light transport layer, or a light modulation layer.
27 Citations
19 Claims
-
1. An electrical device, comprising:
-
an integrated circuit comprising a current transport layer formed using a layer of a topological insulator material, wherein the topological insulator material has an insulating energy band gap in the bulk and conducting edge or surface states, the layer of topological insulator material having a width of at least 10nm; a first electrode formed on the integrated circuit and in electrical contact with the current transport layer at a first location; a second electrode formed on the integrated circuit and in electrical contact with the current transport layer at a second location; a first circuit connected to a first electrode; and a second circuit connected to the second electrode, the first circuit, the second circuit, the first electrode, the second electrode, and the layer of topological insulator material being configured to carry current in either direction between the first circuit and the second circuit, wherein the layer of the topological insulator material contains magnetic doping, and wherein the topological insulator material is selected from the group of;
(1) HgTe;
(2) a compound comprising at least two of Bi, Sb, Te, and Se;
(3) a ternary Heusler compound;
(4) AmN; and
(5) PuTe. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
-
Specification