Spin filtering action in a magnetic-nonmagnetic superlattice structure

Biplab Pal

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We propose a spin filter device using a model magnetic-nonmagnetic superlattice structure. The spin-dependent electronic transport has been studied in such a superlattice structure using the transfer matrix method (TMM), and it is shown that such structure is capable of exhibiting a well-defined spin filtering action. Our model superlattice structure is composed of magnetic-nonmagnetic atomic sites placed in an alternating sequence. The magnitude and the direction of the magnetic moments attached to each magnetic atom play an important role in controlling the spin transmission for selective range of energies corresponding to the two spin channels leading to a spin filtering effect in such system. To corroborate the spin filtering action we have also studied the density of states (DOS) corresponding to the two spin channels (components) for our system. Experimental realization of our model can be useful in designing potential nanoscale spin filter devices.

Original languageEnglish
Title of host publicationDAE Solid State Physics Symposium 2016
EditorsSurendra Singh, Saibal Basu, Shovit Bhattacharya, Amitabh Das
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735415003
DOIs
StatePublished - 19 May 2017
Externally publishedYes
Event61st DAE Solid State Physics Symposium - Bhubaneswar, Odisha, India
Duration: 26 Dec 201630 Dec 2016

Publication series

NameAIP Conference Proceedings
Volume1832
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference61st DAE Solid State Physics Symposium
Country/TerritoryIndia
CityBhubaneswar, Odisha
Period26/12/1630/12/16

Keywords

  • Spin filter
  • Spin-transport
  • Superlattice structure
  • Transfer matrix method

ASJC Scopus subject areas

  • Physics and Astronomy (all)

Fingerprint

Dive into the research topics of 'Spin filtering action in a magnetic-nonmagnetic superlattice structure'. Together they form a unique fingerprint.

Cite this