@ChStampfer profile picture
Christoph Stampfer @ChStampfer

Physics professor at RWTH Aachen University and Forschungszentrum Jülich and co-initiator of PHYPHOX

Joined August 2021
  • Tweets 167
  • Following 65
  • Followers 240
38 Photos and videos
Christoph Stampfer retweeted
heise online@heiseonline
25 Oct 2024
heise | Allround-App phyphox: Wie man Physik-Experimente mit dem Smartphone steuert heise.de/ratgeber/Allround-A… #Physik

Allround-App phyphox: Wie man Physik-Experimente mit dem Smartphone steuert

Mit den Sensoren deines Smartphones kannst du dein komplettes Projekt steuern. Wie das mit der kostenfreien App phyphox funktioniert, zeigt dieser Artikel.

heise.de
2
1
4
1,975
Christoph Stampfer retweeted
Physik im Advent@PhysikImAdvent
26 Oct 2024
We are looking for "international multipliers" that help with establishing PiA in their home countries and acquisition of prizes smpl.is/9ru1q #Physics #Science #Education #Xmas #School #Teachers #STEM #Learning #DigitalLearning #AdventCalendar #PhysEdu #twlz
1
3
7
331
Tomorrow starts the “Festival della Scienza” in Genova! This is a perfect opportunity to explore the wonders of science! Maybe another year we should be there with the ⁦@phyphoxorg⁩ app, making science accessible to everyone. Don’t miss it! #FestivalScienza #Genova2024
7
1
14
581
New Nano Letters! Ultrasteep Slope Cryogenic FETs Based on Bilayer Graphene | Nano Letters pubs.acs.org/doi/10.1021/acs… Check out our latest work on graphene and cryogenic FET. Fanstastic collaboration within @RWTH and @fz_juelich

Ultrasteep Slope Cryogenic FETs Based on Bilayer Graphene

Cryogenic field-effect transistors (FETs) offer great potential for applications, the most notable example being classical control electronics for quantum information processors. For the latter,...

pubs.acs.org
1
12
702
Christoph Stampfer retweeted
Forschungszentrum Jülich | @fzj@social.fz-juelich@fz_juelich
3 Sep 2024
Die Vorstandsvorsitzende des FZJ, Astrid Lambrecht, wurde in das Direktorium des @KarlspreisAC gewählt. Das Direktorium hat eine herausgehobene Rolle, denn es wählt die Preisträger dieser viel beachteten europäischen Auszeichnung aus. fz-juelich.de/de/aktuelles/n…
2
3
9
787
Christoph Stampfer retweeted
phyphox project@phyphoxorg
7 Jun 2024
Something for the weekend: there is a first camera support in the phyphox beta on Android. See phyphox.org/news/camera-supp…
0:25
10
18
1,730
Christoph Stampfer retweeted
phyphox project@phyphoxorg
20 May 2024
Version 1.1.16 brings image support in experiment configurations to phyphox. There are a few more additions to the file format that you might put to good use. Full list of changes (and fixes): phyphox.org/wiki/index.php/V…
App screenshot of an “Image Test” experiment with a full width phyphox logo with a heart rather than the standard line graph

ALT App screenshot of an “Image Test” experiment with a full width phyphox logo with a heart rather than the standard line graph
3
9
1,160
Christoph Stampfer retweeted
Castellanos Lab@Andres_2DMat
20 May 2024
Here are some GIFs of the proposed experiments
Castellanos Lab@Andres_2DMat
20 May 2024
1/8 We have put together a manuscript about the use of pencil and paper to make simple electronic experiments and sensors. The aim is to use this material for practicum for high schoolers and undergraduates. Link👇 arxiv.org/abs/2405.07646 Thread to explain it here👇
7
7
41
3,036
Great to see our work on #NegativeElectronicCompressibility in charge islands in #TwistedBilayerGraphene being picked as PRB Editor's Suggestion! Thanks for all the support: @ML4Q_cluster, @2dmp_spp2244, @fz_juelich, @RWTH!
Physical Review B@PhysRevB
2 May 2024
PRB Editors' Suggestion: #NegativeElectronicCompressibility in charge islands in #TwistedBilayerGraphene R. J. Dolleman et al., Phys. Rev. B 109, 155430 ➡️ go.aps.org/4dfV6J8 #EdSugg #physics #condmat @APSPhysics @ChStampfer @ML4Q_cluster @2dmp_spp2244 @RWTH
EDITORS' SUGGESTION Negative electronic compressibility in charge islands in twisted bilayer graphene By exploiting naturally occurring charge islands due to twist angle variations in twisted bilayer graphene, the authors measure here how strongly charge carriers interact. They discover negative capacitance contributions, which are indicative of correlation effects near band insulators at full filling on both flat and remote sides, and at integer partial fillings. The correlation strength remains constant across all bands, unaffected by a magnetic field. The reported results point to a possible Wigner crystal phase as the underlying mechanism. Robin J. Dolleman et al. Phys. Rev. B 109, 155430 (2024)

ALT EDITORS' SUGGESTION Negative electronic compressibility in charge islands in twisted bilayer graphene By exploiting naturally occurring charge islands due to twist angle variations in twisted bilayer graphene, the authors measure here how strongly charge carriers interact. They discover negative capacitance contributions, which are indicative of correlation effects near band insulators at full filling on both flat and remote sides, and at integer partial fillings. The correlation strength remains constant across all bands, unaffected by a magnetic field. The reported results point to a possible Wigner crystal phase as the underlying mechanism. Robin J. Dolleman et al. Phys. Rev. B 109, 155430 (2024)
1
11
577
#Phyphox #LiDAR in action... great to see (THX to @phyphoxorg @RWTH)
World Scientific
@worldscientific
22 Apr 2024
Free to read: LiDAR-Based Determination of Spring Constant Using Smartphones. This paper explores using a smartphone's #LiDAR sensor with the phyphox app to measure spring constant in a simple experiment suitable for high school #physics.
1
1
7
786
When a layer of twisted bilayer graphene is aligned with hexagonal boron nitride, additional single-particle band gaps appear! See our recent paper in Phys. Rev. B for more details! Thanks for support: @ML4Q_cluster, @2dmp_spp2244, @fz_juelich, @RWTH, journals.aps.org/prb/abstrac…

Band gap formation in commensurate twisted bilayer graphene/hBN moir\'e lattices

We report on the investigation of periodic superstructures in twisted bilayer graphene (tBLG) van der Waals heterostructures, where one of the graphene layers is aligned to hexagonal boron nitride...

journals.aps.org
4
15
611
Christoph Stampfer retweeted
Giovanni Organtini 🇪🇺@organtin
9 Apr 2024
Kicking a smartphone with the fingers and wait until it stops due to friction. Measure the acceleration with @phyphoxorg and integrate it twice in time. Beautiful exercise, rich of insights: kinematics, dynamics, energy, work, numerical integration, uncertainty.
1
6
20
1,410
Something very useful for the lab...: An open-source robust machine learning platform for real-time detection and classification of 2D material flakes doi.org/10.1088/2632-2153/ad… via @MLSTjournal

An open-source robust machine learning platform for real-time detection and classification of 2D...

An open-source robust machine learning platform for real-time detection and classification of 2D material flakes, Uslu, Jan-Lucas, Ouaj, Taoufiq, Tebbe, David, Nekrasov, Alexey, Bertram, Jo Henri,...

iopscience.iop.org
1
14
1,184
Christoph Stampfer retweeted
ML4Q@ML4Q_cluster
29 Feb 2024
Sometimes you need to stand on top of things to look at your work in a different way Yesterday, ML4Q members convened atop Cologne's rooftop for a reflective session, recapping the past few months and anticipating exciting ML4Q2 More in our news section: ml4q.de/news/
1
7
699
Christoph Stampfer retweeted
We moved to @phyphoxorg@rwth_phyphox
19 Feb 2024
If you are in Cologne this week, #didacta is the place to be: phyphox.org/news/didacta-202… :)

didacta 2024 in Cologne

The largest trade fair for the education industry in Europe “didacta” opens its doors from February 20 to 24 from 9 am to 6 pm daily. Together with the initiative to promote young STEM teachers...

phyphox.org
1
5
530
Christoph Stampfer retweeted
David Abergel@David_Abergel
17 Jan 2024
The January issue of @naturephysics is out, and in our editorial, we look back at twenty years of research on 2D materials. nature.com/articles/s41567-0…

Twenty years of 2D materials

Nature Physics - Two-dimensional crystals have revolutionized fundamental research across a staggering range of disciplines. We take stock of the progress gained after twenty years of work.

nature.com
4
25
1,511
When the normal force is "turned off", there is no friction! #Physics @RWTH (Thanks to @diconx for labeling the video).
0:13
9
67
258
20,949
Christoph Stampfer retweeted
ML4Q@ML4Q_cluster
12 Dec 2023
And if you want to read more about Julian's scientific achievement, check out our latest blog article "A Tale of Three Papers": ml4q.de/2023/12/12/a-tale-of…
ML4Q@ML4Q_cluster
12 Dec 2023
🎙️New #podcast episode of #ML4QnA out now! Tune in and listen to @jotschmitt, junior group leader at @UniBonn who talks about his career in #quantum_optics and the challenges of working with #photon_BEC 👉open.spotify.com/episode/5gw… 👉all episodes: ml4q.de/ml4qa/
1
10
1,344
Pushing to more #phyphox experiments for student in the first year of #physics ⁦@RWTH⁩ !! Any idea what all these wheels are good for?
2
1
12
964
Christoph Stampfer retweeted
MrG Physics@RGill_1
7 Dec 2023
With yr13s today, dropping magnets through a coil - Faraday's Law. @phyphoxorg timed experiment makes it easy to catch the moment of dropping. Refresh rate of the Bluetooth voltmeter high enough to see the shape change from magnet approaching and leaving coil #iteachphysics
1
2
13
605
Load more