Author's posts

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 …

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Oct 03

Paper out

Our paper regarding the interference of electrical signals to MFM measurements is out. First publications with Unicamp as affiliation. Have a look at: "Separating the influence of electric charges in magnetic force microscopy images of inhomogeneous metal samples".

Sep 15

Last images of Cassini

Today Friday, NASA let the probe Cassini enter into the atmosphere of Saturn, where it burned. The probe was delivering nice images and a lot of scientific data for 13 years.  Even so not nanotechnology, I always had a great interest in this kind of science as it teaches us a lot about the world, …

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Aug 22

FI199

Tomorrow will be the first round of FI199 - mainly repeating basic solid state physics and talking about semiconductor devices. Hope already to introduce the heterostructure that we can talk about epitaxy and epitaxial semiconductor nanostructures next week.

Aug 11

Conference week

BWSP is coming up - beside the MBE tutorial by myself, the are two talks related to our work: Ingrid will talk about our work on rolled-up tubes and Evandro will show our results on charging on unstrained mesoscopic GaAs structures. See you there.

Aug 04

The IR beamline Synchrotron Radiation News article is out

The article describing the IR beamline of the LNLS is out. I was involved in setting up the experiments and also enjoyed in-house beamtime in the setup phase allowing to write our "Nanoscale" article on graphene/BN structures.  Synchrotron Radiation News is coined towards the community and should give a nice advertising to the beamline.  

Jul 28

Teaching 2nd semester 2017

In my first semester at Unicamp, I will give F329 (Physics lab III) and contribute to FI199 with to lessons in August (Semiconductor nanostructures). Looking forward to do this. Hope, it will be better than in the xkcd strip below... I will announce office ours next week.

Jul 14

Back making rolled-up tubes

We are back to make rolled-up InGaAs/GaAs nano- and microtubes. We stopped doing the process for more than a year, but now is the time to strongly restart the activity. The light microscopy image shows one of our first process. The MBE grown sample coming from our machine rolls nicely, but we have to optimize …

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Jul 07

AFM workshop at the LNNano

Scanning near field optical (SNOM) microscopy image of a graphene flak obtained during the AFM workshop at the LNNano using the NanoIR2-s system of the facility. We are back to the business of imaging garphene and restart this research line here as well as in collaboration with the CNPEM.   We had a lot of …

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Jun 29

Beware the impact factor

I just read an interesting interview in a German Online magazine with Noble prize winner Randy Schekman. He warns to out to much value into the impact factor of magazines like "Science" and "Nature" - indeed he claims, they not helping science to progress, but give rise to fashionable and not-solid research. I agree with him: …

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