Nanostructured multiferroic Pb(Zr,Ti)O3-NiFe2O4 thin-film composites

THIN SOLID FILMS

卷:732

Article

Matavz, Aleksander^1,5  Kozelj, Primoz^1,3,6  Winkler, Maximilian⁴  Geirhos, Korbinian⁴  Lunkenheimer, Peter⁴  Bobnar, Vid^1,2 

[1] Jozef Stefan Inst, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia

[2] Jozef Stefan Int Postgrad Sch, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia

[3] Univ Ljubljana, Fac Math & Phys, Jadranska 19, SI-1000 Ljubljana, Slovenia

[4] Univ Augsburg, Expt Phys 5, Ctr Elect Correlat & Magnetism, D-86159 Augsburg, Germany

[5] Katholieke Univ Leuven, cMACS, Leuven, Belgium

[6] Max Planck Inst Chem Phys Solids, Dresden, Germany

关键词: Lead zirconate titanate;    Nickel ferrite;    Nanostructured films;    Thin-film composites;    Multiferroics;    Magnetoelectrics;   

DOI  :  10.1016/j.tsf.2021.138740

来源: Elsevier

【 摘 要 】

Pb(Zr,Ti)O3-NiFe2O4 thin-film composites were fabricated by spin coating a nickel ferrite precursor solution onto self-assembled porous lead zirconate titanate thin films. The morphology investigations revealed a very extensive interface area between both constitutents. The X-ray diffraction shows that NiFe2O4 coatings induce large compressive in-plane stresses in Pb(Zr,Ti)O3, which are generated during synthesis due to the significant difference in the thermal expansion coefficients of both phases. Diffraction peaks, moreover, corroborate a two phase pure system, without any other detectable secondary phase. The multiferroicity of the composites is evidenced by both ferroelectric and ferromagnetic hysteresis loops, while magnetic field-induced changes of the dielectric constant imply the potential utility of the developed material in magnetocapacitive applications.

【 授权许可】

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