Magnetic element, skyrmion memory, skyrmion memory-device, solid-state electronic device, data-storage device, data processing and communication device
US-2017178748-A1 · Jun 22, 2017 · US
Skyrmion diode and method of manufacturing the same
US11024726B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11024726-B2 |
| Application number | US-201916685852-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 15, 2019 |
| Priority date | Mar 7, 2016 |
| Publication date | Jun 1, 2021 |
| Grant date | Jun 1, 2021 |
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- Title
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- Abstract
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Abstract
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The present disclosure provides a skyrmion diode using skyrmions as information carriers. The skyrmion diode includes a magnetic body and a conductive body. The magnetic body has a skyrmion which is used as information carrier. The conductive body is disposed on or under the magnetic body. The conductive body includes a Dzyaloshinskii-Moriya interaction (DMI) region and a defect region. The DMI region is provided to induce DMI in a region of the magnetic body corresponding to the DMI region by the spin-orbit coupling of the conductive body and magnetic moments of the magnetic body. The defect region is provided to prevent the DMI from being induced in a region of the magnetic body corresponding to the defect region.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of manufacturing a skyrmion diode, the method comprising: providing a magnetic body including a skyrmion serving as an information carrier; and disposing a conductive body on or under the magnetic body, wherein the conductive body includes a notch portion at one side portion thereof and a remaining portion other side than the notch portion, and wherein the notch portion of the conductive body serves as a defect region for preventing a Dzyaloshinskii-Moriya interaction (DMI) from being induced in a region of the magnetic body corresponding to the notch portion, wherein the remaining portion of the conductive body serves as a DMI region for inducing the DMI in a region of the magnetic body corresponding to the remaining portion by spin-orbit coupling of the conductive body and magnetic moments of the magnetic body, wherein the skyrmion in the magnetic body moves by a spin-polarized current only through the region of the magnetic body corresponding to the DMI region of the conductive body and the skyrmion selectively turns around the region of the magnetic body corresponding to the defect region of the conductive body in a direction based on a spin orientation to allow the skyrmion to have diode characteristics, wherein the magnetic body is provided without having the notch portion, and wherein the magnetic body covers the entire conductive body. 2. The method of claim 1 , wherein the spin-polarized current is supplied to the magnetic body. 3. The method of claim 1 , wherein the spin-polarized current is supplied to the conductive body. 4. The method of claim 1 , wherein the spin-polarized current is supplied to both of the magnetic body and the conductive body. 5. The method of claim 1 , wherein the notch portion has a semicircular shape. 6. The method of claim 1 , wherein the notch portion has a triangular shape. 7. The method of claim 1 , wherein the notch portion has a rectangular shape.
Assignees
Inventors
Classifications
- G11C11/1659Primary
Cell access · CPC title
Physical imperfections · CPC title
Devices controlled by magnetic fields · CPC title
- H10D48/385Primary
Devices using spin-polarised carriers · CPC title
Spin-polarised current-controlled devices (magnetoresistive devices H10N50/10) · CPC title
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Frequently asked questions
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- What does patent US11024726B2 cover?
- The present disclosure provides a skyrmion diode using skyrmions as information carriers. The skyrmion diode includes a magnetic body and a conductive body. The magnetic body has a skyrmion which is used as information carrier. The conductive body is disposed on or under the magnetic body. The conductive body includes a Dzyaloshinskii-Moriya interaction (DMI) region and a defect region. The DMI…
- Who is the assignee on this patent?
- Ulsan Nat Inst Science & Tech Unist
- What technology area does this patent fall under?
- Primary CPC classification G11C11/1659. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Jun 01 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).