NSF Review Panelist

I would like to thank Program Director Dr. Juan Figuero for the opportunity to serve as a technical reviewer panelist at the National Science Foundation.

APS March Meeting 2012 Talk

I will be presenting our work entitled:

 High Frequency Excitation of Nanometer-Scale, Strongly Coupled FM / NM / FM Disks 

Abstract:
There is great interest in the manipulation of magnetic domains in nanostructures from both a fundamental and applications perspective. In particular, the use of resonant frequency excitations permits a power reduction of the driving forces necessary to induce detectable motion in magnetic vortex structures. Here we present an experimental and numerical study of patterned tri-layered disk stacks which are composed of 25nm Permalloy | 1nm Copper | 15nm Permalloy, excited at resonance, ranging from 250-500nm in radii. In-situ Lorentz microscopy was used to acquire time averaged real space images of the vortices' gyrotropic motion and micromagnetic simulations were implemented to further understand the coupled dynamics between the ferromagnetic layers across the thin non-magnetic spacer layer. We discuss the effects of interlayer coupling on the vortex trajectories and resonant frequencies for the individual ferromagnetic layers.

The figure above shows the gyrotropic motion of a vortex core under a high frequency applied magnetic field.

Javier F. Pulecio receives USF's Outstanding Dissertation Award

The Outstanding Thesis/Dissertation (OTD) Awards are intended to recognize those USF graduates who have demonstrated exceptional performance during their graduate careers at USF... links below
http://www.grad.usf.edu/outstanding-thesis.asp
http://www.eng.usf.edu/about/news/07-18-11%20Outstanding%20Dissertation%20Award.pdf

Intel Judge at the NYSSEF

It was very inspiring to see young men and women undertake and present their research at such a high level during the Intel sponsored New York State Science and Engineering Fair. It was a pleasure serving and I look forward to doing it again in the near future.

Physics Research Associate - Brookhaven National Labs

I am excited to announce my next professional endeavor at BNL in Dr. Yimei Zhu's Nanostructure and Electron Microscopy group in the department of Condensed Matter Physics and Materials Science. I look forward to making contributions to the group's research and furthering our expertise in magnetism and electron microscopy.

Thanks to Dr Bhanja and USF

I wanted to thank Dr Sanjukta Bhanja and all my colleagues at USF for the wonderful opportunity and experiences I had in the Nano Computing Research Group. I know the work we started there will continue to grow beyond our initial efforts and look forward to seeing the groups success in the near future.

Javier F. Pulecio awarded his Doctorate

Javier F. Pulecio has successfully defended and submitted his dissertation to the University of South Florida and  was awarded his Doctorate of Philosophy in Electrical Engineering in the Fall of 2010.

Javier Pulecio Receives 2010 Hispanic Pathways Award

Tampa, Fla. (September 9, 2010) – Javier Pulecio, a doctoral student in electrical engineering, has been selected as the recipient of the 2010 Hispanic Pathways Award in the student category. His nomination letter describes him as an ‘exemplary student researcher and role model for all students...


http://www2.eng.usf.edu/about/news/09-09-10%20Javier%20Pulecio.pdf