Enhanced magnetoelectric coupling in trilayer PNNZT/CTFO/PNNZT composite thin films prepared by pulsed laser deposition

Kumarswamy Miriyala, Adityanarayan H. Pandey, N. Shara Sowmya, Ajit R. Kulkarni, Venkataramani Narayanan

Research output: Contribution to journalArticlepeer-review


Magnetoelectric 2–2 multilayer composite structures have gained attention due to strong ME coupling and as potential next generation multifunctional devices. In this study, we report our studies on the polycrystalline trilayer PNNZT/CTFO/PNNZT (PNNZT: 0.5Pb(Ni1/3Nb2/3)O3-0.35PbTiO3-0.15PbZrO3; CTFO:Co1.2Ti0.2Fe1.6O4) composite thin films grown on (111)Pt/Ti/SiO2/Si(100) substrate by a pulsed laser deposition (PLD) technique. The structural and phase purity data were acquired by using grazing incidence x-ray diffraction (GI-XRD) studies. Individual layer ferroelectric PNNZT (remanent polarization Pr∼ 31µC/cm2, piezoelectric coefficient d33*∼182 pm/V), and ferromagnetic CTFO (Magnetization Ms∼ 125 emu/cc) thin films displayed a significant functional property, which confirms the high quality of the thin film growth. Further, the trilayer composite thin films also showed significant ferroelectric (Pr∼ 21 µC/cm2) and magnetic (Ms∼ 116 emu/cc) properties. In addition, these trilayer thin films exhibit a strong ME coupling by attaining a desirable magnetoelectric voltage coefficient (MEVC: αME) of 1.12V cm−1 Oe−1 at 1 kHz, with device application capability. This is one of the highest reported MEVC values in the case of PNNZT/CTFO/PNNZT trilayer composite thin films.

Original languageEnglish
Article number105120
JournalMaterials Today Communications
StatePublished - 1 Mar 2023
Externally publishedYes


  • Ferroelectrics
  • Magnetoelectric coupling
  • PFM
  • Piezoelectrics
  • Pulsed Laser Deposition

ASJC Scopus subject areas

  • Materials Science (all)
  • Mechanics of Materials
  • Materials Chemistry


Dive into the research topics of 'Enhanced magnetoelectric coupling in trilayer PNNZT/CTFO/PNNZT composite thin films prepared by pulsed laser deposition'. Together they form a unique fingerprint.

Cite this