公开(公告)号：US20240172565A1

公开(公告)日：2024-05-23

申请号：US18496019

申请日：2023-10-27

Applicant: Regents of the University of Minnesota

Inventor： Jian-Ping Wang ,  Tony Low ,  Yifei Yang ,  Seungjun Lee

IPC: H10N50/20 ,  H10B61/00 ,  H10N50/01 ,  H10N50/85

CPC classification number: H10N50/20 ,  H10B61/00 ,  H10N50/01 ,  H10N50/85

Abstract: A device which includes a free layer and a current channel. The free layer has a configurable magnetization state. The current channel includes a low-symmetry crystal with only one mirror plane. The low-symmetry material has relatively large unconventional spin Hall effect (SHE). A current through the current channel applies a spin-orbit torque that sets the magnetization state of the free layer.

公开(公告)号：US20240402400A1

公开(公告)日：2024-12-05

申请号：US18733569

申请日：2024-06-04

Applicant: Regents of the University of Minnesota ,  University of Notre Dame du Lac

Inventor： Seungjun Lee ,  Dongjea Seo ,  Sang Hyun Park ,  Tony Low ,  Steven J. Koester ,  Rehan Younas ,  Christopher Hinkle

IPC: G02B5/00

Abstract: Approaches to stack monolayer transition metal dichalcogenides (TMD) materials to develop near-perfect light absorbers (NPLAs) with only two atomic layers of TMD. Stacking TMDs may result in interlayer coupling with undesirable light absorbing behavior. The NPLAs of this disclosure stacks monolayer TMDs in such a way as to minimize TMD interlayer coupling, thus preserving TMD strong band nesting properties. Examples of approaches in this disclosure control the interlayer coupling by, for example, (a) twisted TMD bi-layers and (b) adding a buffer layer, e.g., a TMD/buffer layer/TMD tri-layer heterostructure. The NPLAs of this disclosure use the band nesting effect in TMDs, combined with a Salisbury screen geometry, to demonstrate NPLAs using only two or three uniform atomic layers of TMDs.