Relation between thickness, crystallite size and magnetoresistance of nanostructured La1−xSrxMnyO3±δ films for magnetic field sensors

Rasuole Lukose; Valentina Plausinaitiene; Milita Vagner; Nerija Zurauskiene; Skirmantas Kersulis; Virgaudas Kubilius; Karolis Motiejuitis; Birute Knasiene; Voitech Stankevic; Zita Saltyte; Martynas Skapas; Algirdas Selskis; Evaldas Naujalis

doi:10.3762/bjnano.10.24

Beilstein Journal of Nanotechnology (Jan 2019)

Relation between thickness, crystallite size and magnetoresistance of nanostructured La1−xSrxMnyO3±δ films for magnetic field sensors

Rasuole Lukose,
Valentina Plausinaitiene,
Milita Vagner,
Nerija Zurauskiene,
Skirmantas Kersulis,
Virgaudas Kubilius,
Karolis Motiejuitis,
Birute Knasiene,
Voitech Stankevic,
Zita Saltyte,
Martynas Skapas,
Algirdas Selskis,
Evaldas Naujalis

Affiliations

Rasuole Lukose: Department of Material Science and Electrical Engineering, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Valentina Plausinaitiene: Department of Material Science and Electrical Engineering, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Milita Vagner: Department of Material Science and Electrical Engineering, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Nerija Zurauskiene: Department of Material Science and Electrical Engineering, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Skirmantas Kersulis: Department of Material Science and Electrical Engineering, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Virgaudas Kubilius: Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko 24, LT- 03225 Vilnius, Lithuania
Karolis Motiejuitis: Institute of Chemistry, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko 24, LT- 03225 Vilnius, Lithuania
Birute Knasiene: Department of Metrology, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Voitech Stankevic: Department of Material Science and Electrical Engineering, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Zita Saltyte: Department of Material Science and Electrical Engineering, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Martynas Skapas: Department of Characterization of Materials Structure, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Algirdas Selskis: Department of Characterization of Materials Structure, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania
Evaldas Naujalis: Department of Metrology, Center for Physical Sciences and Technology, Sauletekio av. 3, LT-10257 Vilnius, Lithuania

DOI: https://doi.org/10.3762/bjnano.10.24
Journal volume & issue: Vol. 10, no. 1
pp. 256 – 261

Abstract

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In the present study the advantageous pulsed-injection metal organic chemical vapour deposition (PI-MOCVD) technique was used for the growth of nanostructured La1−xSrxMnyO3±δ (LSMO) films on ceramic Al2O3 substrates. The compositional, structural and magnetoresistive properties of the nanostructured manganite were changed by variation of the processing conditions: precursor solution concentration, supply frequency and number of supply sources during the PI-MOCVD growth process. The results showed that the thick (≈400 nm) nanostructured LSMO films, grown using an additional supply source of precursor solution in an exponentially decreasing manner, exhibit the highest magnetoresistance and the lowest magnetoresistance anisotropy. The possibility to use these films for the development of magnetic field sensors operating at room temperature is discussed.

Published in Beilstein Journal of Nanotechnology

ISSN: 2190-4286 (Online)
Publisher: Beilstein-Institut
Country of publisher: Germany
LCC subjects: Technology: Chemical technology; Science: Physics
Website: http://www.beilstein-journals.org/bjnano/home/home.htm

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