Spin-polarized tunneling through randomly transparent magnetic junctions: Reentrant magnetoresistance approaching the Jullière limit

URN to cite this document:

urn:nbn:de:bvb:355-epub-77973 Copy

DOI to cite this document:

10.5283/epub.7797 Copy

Tkachov, Grygoriy ; Richter, Klaus

Preview	PDF - Published Version (162kB)
Preview	PDF - Accepted Version arXiv PDF (28.04.2008) (178kB)
Preview	PDF - Submitted Version arXiv PDF (24.03.2008) (174kB)

Date of publication of this fulltext: 05 Aug 2009 13:57

---

Alternative links to fulltext:DOIArxivPublisher

---

Details

Item type:	Article
Journal or Publication Title:	Physical Review B (PRB)
Publisher:	American Physical Society
Volume:	77
Number of Issue or Book Chapter:	18
Page Range:	p. 184427
Date:	23 May 2008
Institutions:	Physics > Institute of Theroretical Physics > Chair Professor Richter > Group Klaus Richter
Projects:	SFB 689: Spinphänomene in reduzierten Dimensionen
Identification Number:	Value Type 10.1103/PhysRevB.77.184427 DOI 0803.3427 arXiv ID
Classification:	Notation Type 72.25.-b PACS 85.75.-d PACS
Dewey Decimal Classification:	500 Science > 530 Physics
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Yes
Item ID:	7797

Preview

Preview

Preview

Export bibliographical data

ASCII CitationAtomBibTeXData Cite XMLDataCite XML OAIDublin CoreEndNoteHTML CitationJSON LDMETSMODSOpenAPCRDF+N-TriplesRDF+N3RDF+XMLReferReference ManagerSimple MetadataXMLxMetaDissPlus

---

Abstract

The electron conductance in planar magnetic tunnel junctions with long-range barrier disorder is studied within Glauber-eikonal approximation enabling exact disorder ensemble averaging by means of the Holtsmark-Markov method. This allows us to address a hitherto unexplored regime of the tunneling magnetoresistance effect characterized by the crossover from k_||-conserving to random tunneling ...

Abstract

The electron conductance in planar magnetic tunnel junctions with long-range barrier disorder is studied within Glauber-eikonal approximation enabling exact disorder ensemble averaging by means of the Holtsmark-Markov method. This allows us to address a hitherto unexplored regime of the tunneling magnetoresistance effect characterized by the crossover from k_||-conserving to random tunneling (k_|| is the in-plane wave vector) as a function of the defect concentration. We demonstrate that such a crossover results in a reentrant magnetoresistance: It goes through a pronounced minimum before reaching the disorder- and geometry-independent Julliere value at high defect concentrations.

---

---

Metadata last modified: 26 Nov 2020 15:02

Owner only: item control page

Download Statistics

Download Statistics

Download Statistics

Download Statistics

Downloads

Downloads per month over past year

Altmetric

Altmetric

Altmetric

Alternative Statistics (altmetrics)

More literature (via CORE)

More literature (via CORE)

More literature (via CORE)

More literature (via CORE)