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Jani Kotakoski
Works at University of Vienna
Attended University of Helsinki
11,214 followers|319,174 views
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Jani Kotakoski

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Young people need to stop thinking in a U.S.-centric way and take advantage of international opportunities.
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Jani Kotakoski

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My first try with R: Plotting GPS tracks and heart rate data with R into a card-like format as an image.

If you want to tinker with the code, please help yourself. I would be happy about any comments/suggestions you might have.

Code: https://github.com/jkkoski/runmap
My website about science, running, gym training, photography and personal news
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Helsinki's ambitious plan to make car ownership pointless in 10 years

Finland's capital hopes a 'mobility on demand' system that integrates all forms of shared and public transport in a single payment network could essentially render private cars obsolete.
Finland's capital hopes a 'mobility on demand' system that integrates all forms of shared and public transport in a single payment network could essentially render private cars obsolete• Live Q&A: Should we ban cars? From midday on Friday
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The latest one is finally out, and it is #openaccess
We present a computational study on the topology, energetics, and structural deformations for a large number of experimentally observed defect configurations in graphene. We find that both the number of lost hexagonal carbon rings and introduced nonhexagonal rings increase linearly as a function of the vacancy order (number of missing atoms). The formation energies of the defects increase by about 2.2 eV per missing atom after an initial offset, ...
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Jani Kotakoski

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The Open Access Button campaign aims to shame publishers who charge a small fortune for what should be a universal right
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I just signed up for my first long race (100 km) for next June, I have done marathons before, though. Any ideas regarding preparation are appreciated :)
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Jani Kotakoski

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Open position for a PhD student in Physics in Vienna, Austria

I am looking for a PhD student for the coming ~3 years for a study of the structure of carbon nanomaterials combining state-of-the-art transmission electron microscopy and computational methods.

This is a paid position. The project is a collaboration between us at the Faculty of Physics and the Faculty of Mathematics at the University of Vienna, Austria.

If you are aware of any students who could be interested in spending a couple of years in one of the most liveable cities in the World [https://en.wikipedia.org/wiki/Mercer_Quality_of_Living_Survey], please share this post. I'd be happy to tell more.

Thanks!
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Ok. Please do. Thanks!
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Our latest article just appeared in Phys. Rev. Lett. [open access]
We demonstrate that 60-keV electron irradiation drives the diffusion of threefold-coordinated Si dopants in graphene by one lattice site at a time. First principles simulations reveal that each step is caused by an electron impact on a C atom next to the dopant. Although the atomic motion happens below our experimental time resolution, stochastic analysis of 38 such lattice jumps reveals a probability for their occurrence in a good agreement with...
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Oh... I just clicked the title while posting and it allowed me to edit the title.
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Video of the migrating divacancy from our latest article.
http://www.nature.com/ncomms/2014/140529/ncomms4991/full/ncomms4991.html
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Very interesting.
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"This Is What a Holy Shit Moment for Global Warming Looks Like"
If you truly understand global warming, then you know it's all about the ice. That's what matters. Planet Earth has not always had great ice sheets at the poles, of the sort that currently exist atop Greenland and Antarctica. In other periods, much of that water has instead been in liquid form, ...
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A paper of ours, accepted two weeks ago, to appear in Phys. Rev. B. We show here that more-or-less all of the previous theoretical treatments of defects in graphene have contained a flaw: they have assumed that the structure remains flat, while in actuality the defects cause the famous 2D material to buckle out of the plane.

(We also provide a set of vacancy defect structures observed in transmission electron microscopy experiments, but they are likely to be of interest to the experts only.)
Abstract: We present a computational study on the topology, energetics and structural deformations for a large number of experimentally observed defect configurations in graphene. We find that both the number of lost hexagonal carbon rings and introduced non-hexagonal rings increase linearly as ...
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People
Have him in circles
11,214 people
dan bob's profile photo
Lars Falkdalen Lindahl's profile photo
sun sen's profile photo
Michał Gołuński's profile photo
elias moh's profile photo
Bob Marcavage's profile photo
Phillip Ibarra's profile photo
Sylvain Gagnon's profile photo
suraj vishwakarma's profile photo
Work
Occupation
Scientist (Physics)
Employment
  • University of Vienna
    2011 - present
  • University of Helsinki
    2009 - 2011
  • University of Helsinki
    2004 - 2006
  • Technische Universität Darmstadt
    2007 - 2009
Basic Information
Gender
Male
Story
Tagline
Scientist (materials physics), atheist, skeptic, parent, gym-goer, runner and photographer. In random order.
Introduction
A physicist interested in science, good stories and sports. Atheist, skeptic, and an enthusiastic photography hobbyist travelling around Europe with the family and an open mind.
Education
  • University of Helsinki
    Physics (Ph.D.), 2007
  • University of Helsinki
    Docent, 2011
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