Nanocomposite Magnetoelectric Films Menka Jain, University of Connecticut, DMR 1105975

NanocompositeMagnetoelectric Films Menka Jain, University of Connecticut, DMR 1105975 Outcome:Dr. Jain and group at UConn have prepared nanoparticles (NPs) of ferrite materials using solution method and fabricated thin film magnetoelectric composites comprising of magnetostrictive (ferrite) and piezoelectric PbZr0.52Ti0.48O3 (PZT) materials. Impact:These magnetoelectric composites have potential in device applications, such as in microwave devices, sensors, transducers, and heterogeneous read/write devices. The magnetic measurements of the uncoated NPs and oleic acid coated NPs shows a difference in the blocking temperature (marked by arrow), which clearly indicates that the NPs do not agglomerate when coated. 50 Oe Phase pure CoFe2O4 (CFO) and related nanoparticles of 5-10 nm size were synthesized using solution route. The CFO nanoparticles exhibit a coercive field of ~11400 Oe at 10 K.

NanocompositeMagnetoelectric Films Menka Jain, University of Connecticut, DMR 1105975 The atomic force microscopy image from the surface of the PZT-ferrite magnetoelectric composite film shows the NPs dispersed in the film. The atomic force microscopy image of Ba0.5Sr0.5TiO3nano-islands deposited on (001) SrTiO3 substrate by sol-gel and spin-coating techniques. (a) The magnetization hysteresis loops at 10K and (b) ferroelectric hysteresis loops at 300K, respectively, for the PbZr0.52Ti0.48O3:CoFe2O4 composite film shows the composite films shows good ferroelectric and magnetic properties.

NanocompositeMagnetoelectric Films Menka Jain, University of Connecticut, DMR 1105975 • Margo Staruch, a PhD candidate, is currently being funded by the program. She will present her research work in MRS Fall 2011 meeting. • New PhD candidate, AdricQuankenbush has recently joined the group. The grant is currently being used to fund undergraduate student Daniel Violette in order to provide him hands-on research experience in the fabrication and characterization of ferrite nanoparticles and ME composite films. The student plans to apply for a Goldwater scholarship based on preliminary results obtained in the research work. • Dr. Jain actively participated in the outreach program “Kids are Scientist Too” during summer.

Nanocomposite Magnetoelectric Films Menka Jain, University of Connecticut, DMR 1105975

Nanocomposite Magnetoelectric Films Menka Jain, University of Connecticut, DMR 1105975

Presentation Transcript

Attitudes Toward Offshore Outsourcing by Subhash C. Jain University of Connecticut

Strong Magnetoelectric Coupling in Multiferroic Bismuth Ferrite Venkatraman Gopalan, Pennsylvania State University, DMR

University of Connecticut

University of Connecticut

Compression of Bottle-Brush Layers Andrey Dobrynin, University of Connecticut, DMR 1004576

University of Connecticut Libraries

Disappearing Nano-Particles Bryan D. Huey, University of Connecticut, DMR 0909091

University of Connecticut

University of Connecticut

University of Connecticut

Novel Layered Nanocomposite Structure Robert C. Cammarata, Johns Hopkins University, DMR 076178

Nanocomposite Thin Films Menka Jain, University of Connecticut, DMR 1105975

Menka Jain Assistant Professor, University of Connecticut, Storrs, CT

An initio study of magnetoelectric thin films

University of Connecticut

University of Connecticut

University of Connecticut

Magnetoelectric coupling in multiferroic FeVO 4 Gavin Lawes, Wayne State University, DMR 0644823

University of Connecticut

Novel Bioactive Inorganic Materials Challa V. Kumar, University of Connecticut, DMR 0300631

Magnetoelectric coupling in manganites Amlan Biswas, University of Florida, DMR 0804452

Yong Wang, University of Connecticut, DMR 0955358