Reconfigurable spin logic device using electrochemical potentials

Title
Reconfigurable spin logic device using electrochemical potentials
Authors
장준연구현철김형준홍석민이주현
Keywords
Spin logic device; Rashba effect; Electrochemical potentials; Reconfigurable logic
Issue Date
2019-04
Publisher
Applied physics letters
Citation
VOL 114-152403-4
Abstract
A reconfigurable spin logic device is realized using an asymmetric quantum well displaying strong Rashba spin splitting. This design is developed to remove the inefficient spin injection process and to utilize the Rashba-effect-induced electrochemical potential shifts. In this logic device, two ferromagnetic electrodes were deposited on two quantum well channels, respectively. The magnetization orientations of the ferromagnetic electrodes determine the function of the logic operation, and the polarity of the charge current is assigned to the logic input. The output voltage corresponds to the difference between potentials of the two ferromagnetic terminals, which read the electrochemical potentials of the individual quantum well channels. The detected signal induced by the Rashba channel is observed to be two orders of magnitude greater than the spin injection signal from the ferromagnetic source into the semiconductor channel. Four logic functions, i.e., the AND, OR, NAND, and NOR operations, are illustrated for a single device up to room temperature.
URI
http://pubs.kist.re.kr/handle/201004/69278
ISSN
0003-6951
Appears in Collections:
KIST Publication > Article
Files in This Item:
There are no files associated with this item.
Export
RIS (EndNote)
XLS (Excel)
XML


qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

BROWSE