Author's posts
Jul 06
Do grades really serve the propose we want?
I read these days an interesting German article, questioning the future of grades as we give them today. Basically, he repeats a critic that we already discussed in our course in the EA2. The main points are: Grades are just a time snap of the moment. They do not tell you, what happened afterwards – …
Jul 03
Workshop on Epitaxy – LNNano
We had a very nice workshop at the LNNano at the 27. to 28. June bringing together the Brazilian community. Beside fruitful discussion and nice science, we had also the chance to socialize and re-enforce the community. Hope, this event will continue the next years as we are missing such a gathering in the last …
May 03
Getting ready for the EOSBF
I finished today the preparation of the tutorial for the Autumn Meeting of the Brazilian Physical Society . I looking forward to give talk about molecular beam epitaxy: “MOLECULAR BEAM EPITAXY – A VERSATILE METHOD FOR THE NANO-AGE “. In this tutorial, I would like to give an overview of MBE covering its importance for …
Apr 18
Beamline paper out
Low-aberration beamline optics for synchrotron infrared nanospectroscopy Sync hrotron infrared nanospectroscopy is a recently developed technique that enables new possibilities in the broadband chemical analysis of materials in the nanoscale, far beyond the diffraction limit in this frequency domain. Synchrotron infrared ports have exploited mainly the high brightness advantage provided by electron storage rings across …
Apr 16
Workshop em cresimento epitaxial (LNNano)
There will be a workshop on epitaxy at the LNNano at the end of June. I will have the pleasure to give a talk and advertise the facility a bit. I will explain, what we do in research, but also what kind of structures can be realized inside a service/collaboration. Hope to see you …
Mar 26
Back from the US
Back from the International Conference on Low-Dimensional Quantum Materials where I gave a talk about ” 2D nanomembranes as substrates for the growth of semiconductor nanostructures“. It was a very inspiring conference with excellent talks – I very much enjoyed the conversations with the other participates. On the way back, I had a chance to …
Feb 19
Molecular beam epitaxy
For those interested in the technique of Molecular Beam Epitaxy, I will give a tutorial on the topic in Foz at the meeting of the Brazilian Physical Society. It will be great to give an overview to the possibilities and discuss current and future developments. I also like to advertise again the possibility to do …
Jan 09
Silicon Nanomembranes with Hybrid Crystal Orientations and Strain States
Our publication investigating the structure of overgrown transferred silicon membranes is finally out: Have a look to “Silicon Nanomembranes with Hybrid Crystal Orientations and Strain States“. Methods to integrate different crystal orientations, strain states, and compositions of semiconductors in planar and preferably flexible configurations may enable nontraditional sensing-, stimulating-, or communication-device applications. We combine …
Dec 22
End of 2017
The year 2017 and the 2nd semester 2017 are about to end. It was fun teaching F329 and I am looking forward to do it again in the 1st semester of 2018. I’ll promise to try to in cooperate the feedback and improve the course – well the provas will have to stay, but I …
Oct 12
Correcting 1st prova of F329
Spending a lot of time, correcting the first test of F329. This made me think about, what and how we teach stuff. Which leads – in my case – unavoidably to think of a Terry Pratchett quote from the discworld cycle. “… therefore education at the (Unseen) University mostly worked by the age-old method of …
