Patent · US Active

Direct electrical detection of current-induced spin polarization due to spin-momentum locking in topological insulators

US10852370B2 · kind B2 · utility

0Cited by

0References

6Claims

0Family size

Assignee

The Government of the United States of America, as represented by the Secretary of the Navy · US

Inventors

Connie H. Li · Alexandria, US
Olaf M. J. van 't Erve · Falls Church, US
Jeremy T. Robinson · Washington, US
Ying Liu · Hsinchu, TW
Lian Li · Shanghai, CN
Berend T. Jonker · Waldorf, US

Key dates

Filing date	Oct 23, 2018
Grant date	Dec 1, 2020
Priority date	—
Expiry date	Mar 1, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH10N50/85
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

A device for directly electrically generating and detecting the current-generated spin polarization in topological insulators, comprising a first and fourth contact on a layer of Bi2Se3 and a second contact comprising a ferromagnet/oxide tunnel barrier contact as a detector, and a third contact comprising nonmagnetic metal as a reference contact, a current to the first and fourth contact to produce a net spin polarization, and the spin polarization manifesting as a voltage between the second (magnetic) and third (reference) contacts.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.