Specere spent the week[end] working with Jon Ihlefeld’s group from the U. of Virginia at the National Synchrotron Light Source-II (NSLS-II) hunting O-vacancies in HZO. Great time at “science camp” with (L to R) Jon, Thomas, Liron, Gabby, YK, and Fernando.

Edward recently passed his area exams and is on to his “next brick higher.” Congratulations!

Fernando was recognized as a top student presenter at the Semiconductor Logic and Memory Devices program review. Big Ups, Fernando.

Ferroelectric hafnium zirconium oxide (HZO) is being pursued for all sorts of next generation computing architectures. This intriguing phase has to be tricked into existing, however. Specere recently showed that you could “trick” HZO by simply patterning with a visible laser to alter the vacancy concentration causing an enhancement in the ferroelectric phase.

There’s a new lane on the heat transfer highway. Jacob Minyard’s paper in J. Applied Physics shows that this quasiparticle of light and heat is a real contributor to moving thermal energy in ultrathin layers like those in modern electronics.

Thomas gets named as ASME Fellow.

Microelectronics continue to get smaller. Optical characterization hasn’t caught up. The problem’s there but the solutions are coming as the field shared ideas at DARPA’s ERI Summit the past few days.

Two days well spent seeing the future of ferroelectrics and in-memory compute with a fantastic group of collaborators at Penn State for our EFRC retreat. Specere shared our ability to untangle phases in ferroelectric-hafnia with FTIR, and Walter explained a curious observation of oxygen defects forming in AlBN with wake-up.

Graphene really “feels” charge. We use this property to make a radiation detector and show that the graphene is tough enough to stand up to the radiation.

… and Walter’s 1st Paper Ever! Collaborating with Stephanie Law’s group at the University of Delaware (now at PSU), we used Raman to help interpret the synthesis of ultrathin bismuth selenide films for topological applications.

Now Published in Review of Scientific Instruments! By using electrons to “see” optical phenomena, a new mode of photoemission microscopy provides a path to perform optical spectroscopies at sub-wavelength scales.

Specere Senior Design team creates tool allowing for clean, repeatable, and optimized 2D material transfer.

Now In Nature! New symmetries created at the interfaces of ultrathin superlattices provide an alternative path to designing thermal and optical properties.

Editor’s Choice in J. App. Phys. CdO is an emerging IR-optical material whose performance is dictated by dopants and their mobility. Raman spectroscopy shows that mobility can still be improved even with higher dopant loads.

Now Published! By using electrons to “see” optical phenomena, a new mode of photoemission microscopy provides a path to perform optical spectroscopies at sub-wavelength scales.