Room temperature multiferroicity and magnetodielectric coupling in 0–3 composite thin films
Journal Article
·
· Journal of Applied Physics
- Carnegie Inst. of Science, Washington, DC (United States). Geophysical Lab.; Louisiana State University and A&M College
- Pennsylvania State Univ., University Park, PA (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
- Univ. of Puerto Rico, San Juan, PR (United States). Institute of Functional Nanomaterials
- Bar-Ilan Univ., Ramat Gan (Israel)
- Smart Nanomaterials Solutions, Orlando, FL (United States)
- National Institute of Technology, Rourkela (India)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS); Univ. of Tennessee, Knoxville, TN (United States)
- National Physical Laboratory (CSIR), New Delhi (India)
Magnetoelectric (ME) composite thin films are promising candidates for novel applications in future nanoelectronics, spintronics, memory and other multifunctional devices as they exhibit much higher ME coupling and transition temperatures (Tc) than well-known single phase multiferroics discovered to date. Among the three types of multiferroic composite nanostructures, (2-2) layered and (1-3) vertically aligned composite nanostructures exhibit comparatively smaller ME coupling due to different shortcomings which restrict their use in many applications. Here we study the morphological, piezoresponse force microscopic (PFM), ferroelectric, magnetic, and magnetodielectric properties of 0-3 (magnetic nanoparticles (0) homogeneously distributed in ferroelectric matrices (3)) multiferroic composite thin films. The Pb(Fe0.5Nb0.5)O3 (PFN) - Ni0.65Zn0.35Fe2O4 (NZFO) particulate composite films were synthesized by pulsed laser deposition (PLD). These particulate composite thin films are completely c-axis oriented with very low surface roughness. We observed magnetic and ferroelectric Tc above room temperature (RT) for all composite thin films. The PFN-NZFO 0-3 composites exhibit large polarization, high saturated magnetization with low coercive field, low dielectric loss along with magnetodielectric coupling at RT. These nanocomposites might be utilized in next generation nano/microelectronics and spintronic devices.
- Research Organization:
- Louisiana State Univ., Baton Rouge, LA (United States)
- Sponsoring Organization:
- DoD-AFOSR; USDOE; USDOE Office of Science (SC)
- Grant/Contract Number:
- SC0002136
- OSTI ID:
- 1867230
- Alternate ID(s):
- OSTI ID: 1630170
- Journal Information:
- Journal of Applied Physics, Journal Name: Journal of Applied Physics Journal Issue: 19 Vol. 127; ISSN 0021-8979
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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