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Title: Giant conductance anisotropy in magnetically coupled ferromagnet-superconductor-ferromagnet structures.

Abstract

We demonstrate the evolution of the anisotropic conductivity in the superconductor that is magnetically coupled with two adjacent ferromagnetic layers. Stripe magnetic domain structure in the ferromagnetic layers results in directional superconducting order parameter in the superconducting layer. The conductance anisotropy strongly depends on the period of the magnetic domains and the strength of the local magnetization. The anisotropic conductivity of up to three orders of magnitude can be achieved with spatial critical temperature modulation of 5% of T{sub c}. The effect could be exploited in low temperature nonvolatile logic and storage elements.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
979000
Report Number(s):
ANL/MSD/JA-66799
Journal ID: ISSN 0003-6951; APPLAB; TRN: US201010%%327
DOE Contract Number:  
DE-AC02-06CH11357
Resource Type:
Journal Article
Journal Name:
Appl. Phys. Lett.
Additional Journal Information:
Journal Volume: 96; Journal Issue: 2010; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
ENGLISH
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; CRITICAL TEMPERATURE; DOMAIN STRUCTURE; MAGNETIZATION; MODULATION; ORDER PARAMETERS; STORAGE; SUPERCONDUCTORS

Citation Formats

Belkin, A, Novosad, V, Iavarone, M, Divan, R, Hiller, J, Proslier, T, Pearson, J E, Karapetrov, G, Illinois Inst. of Tech., and Temple Univ. Giant conductance anisotropy in magnetically coupled ferromagnet-superconductor-ferromagnet structures.. United States: N. p., 2010. Web. doi:10.1063/1.3352079.
Belkin, A, Novosad, V, Iavarone, M, Divan, R, Hiller, J, Proslier, T, Pearson, J E, Karapetrov, G, Illinois Inst. of Tech., & Temple Univ. Giant conductance anisotropy in magnetically coupled ferromagnet-superconductor-ferromagnet structures.. United States. https://doi.org/10.1063/1.3352079
Belkin, A, Novosad, V, Iavarone, M, Divan, R, Hiller, J, Proslier, T, Pearson, J E, Karapetrov, G, Illinois Inst. of Tech., and Temple Univ. 2010. "Giant conductance anisotropy in magnetically coupled ferromagnet-superconductor-ferromagnet structures.". United States. https://doi.org/10.1063/1.3352079.
@article{osti_979000,
title = {Giant conductance anisotropy in magnetically coupled ferromagnet-superconductor-ferromagnet structures.},
author = {Belkin, A and Novosad, V and Iavarone, M and Divan, R and Hiller, J and Proslier, T and Pearson, J E and Karapetrov, G and Illinois Inst. of Tech. and Temple Univ.},
abstractNote = {We demonstrate the evolution of the anisotropic conductivity in the superconductor that is magnetically coupled with two adjacent ferromagnetic layers. Stripe magnetic domain structure in the ferromagnetic layers results in directional superconducting order parameter in the superconducting layer. The conductance anisotropy strongly depends on the period of the magnetic domains and the strength of the local magnetization. The anisotropic conductivity of up to three orders of magnitude can be achieved with spatial critical temperature modulation of 5% of T{sub c}. The effect could be exploited in low temperature nonvolatile logic and storage elements.},
doi = {10.1063/1.3352079},
url = {https://www.osti.gov/biblio/979000}, journal = {Appl. Phys. Lett.},
issn = {0003-6951},
number = 2010,
volume = 96,
place = {United States},
year = {Fri Jan 01 00:00:00 EST 2010},
month = {Fri Jan 01 00:00:00 EST 2010}
}