Lots of papers!

New papers published by Andy on high precision STEM with big pixels and denoising STEM images, by Fengyuan on Co2(Mn,Fe)Si MTJs, and Li on MRO in ultrastable indomethacin thin films.  Raw data for many of these publications and others by the group is available from the Papers page.

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Video of non-rigid registration

The video above is an example of non-rigid registration of high-resolution STEM images, a new tool we have developed to enable high precision STEM.

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Fluctuation microscopy MATLAB data analysis routines

We have made available for download a set of fluctuation electron microscopy data analysis routines for electron nanodiffraction patterns written in MATLAB.  Right now, the routines only calculate the variance of annular averages, and they only work for data files in the SER file format created by the TIA software on FEI electron microscopes.  The routines implement TEM sample thickness filtering based on an ADF image acquired simultaneously with the nanodiffraction patterns, as described in Jinwoo’s paper.  Bug fixes, modifications, and improvements are welcome!

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New papers

Work on ALD-coated catalysts and In clustering in InGaN LEDs by Fengyuan and Andy  respectively has recently been published in ACS Catalysis and Microscopy and Microanalysis.

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Welcome new graduate students Sachin Muley and Chenyu Zhang!

Two new graduate students have joined the group.  Sachin Muley will be working on bulk metallic glass structure in thin films, and Chenyu Zhang will be working on STEM imaging technique development and defects in oxides.

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Andy’s paper on high-precision STEM published

Andy’s paper “Picometre-Precision Scanning Transmission Electron Microscopy Imaging of Platinum Nanocatalysts” is now published in Nature Communications.  The university has issued a press release about Andy’s work.

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Li’s paper on BMG thin films published

Li’s paper “Effect of annealing on the compositional heterogeneity and structure in zirconium-based bulk metallic glass thin films” has been published in a special issue of Thin Solid Films devoted to bulk metallic glass thin films.

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Andy wins MRS Graduate Student Award!

Andy won a Silver Graduate Student Award from the Materials Research Society at the Spring MRS meeting last week.  Congratulations, Andy!

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Andy publishes paper on InGaN quantum wells

Andy’s paper on composition fluctuation in InGaN layers inside InGaN/GaN quantum-well LEDs has been published online at Microscopy and Microanalysis.

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Andy Yankovich finalist for MRS Graduate Student award

Andy Yankovich is a finalist for an MRS Graduate Student award.  He will be awarded either a Silver or Gold award at the Spring 2014 MRS meeting in April.  Congratulations, Andy!

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