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Wahl group account

@wahlgroup.bsky.social
94 followers 73 following 34 posts

Posts of the Tunneling Spectroscopy of Quantum Materials group at the University of St Andrews, see also wahl.wp.st-andrews.ac.uk

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King group @ St Andrews @kinggroup.bsky.social · 27/08/2026
Out now in PRL: combined structural and electronic characterisation with @wahlgroup.bsky.social @diamondlightsource.bsky.social @maxplanck.de @maxivlaboratory.bsky.social shows that the surface of Ca3Ru2O7 is a correlated insulator while its bulk is metallic. journals.aps.org/prl/abstract...
journals.aps.org
Correlated Insulator at the Surface of the Polar Metal ${\mathrm{Ca}}_{3}{\text{Ru}}_{2}{\mathrm{O}}_{7}$
We investigate the electronic structure at the surface of the correlated oxide ${\mathrm{Ca}}_{3}{\mathrm{Ru}}_{2}{\mathrm{O}}_{7}$, a low-symmetry ruthenate oxide which hosts an unconventional polar-...
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Wahl group account @wahlgroup.bsky.social · 26/08/2026
A surface Mott insulator Does the surface of a strongly correlated electron material have the same properties of the bulk? Dan’s new paper (lnkd.in/e_nD57-Q) shows from an incredibly detailed structural...
wahl.wp.st-andrews.ac.uk
A surface Mott insulator
Does the surface of a strongly correlated electron material have the same properties of the bulk? Dan’s new paper (https://lnkd.in/e_nD57-Q) shows from an incredibly detailed structural characterization of the surface...
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Wahl group account @wahlgroup.bsky.social · 27/07/2026
Review on quasiparticle interference imaging How can one use real space imaging to obtain k-space information of the electronic states in a material? Our preprint on quasiparticle interference imaging...
wahl.wp.st-andrews.ac.uk
Review on quasiparticle interference imaging
How can one use real space imaging to obtain k-space information of the electronic states in a material? Our preprint on quasiparticle interference imaging of strongly correlated and 2D materials...
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Wahl group account @wahlgroup.bsky.social · 21/07/2026
Congratulations! Congratulations to Daniel Halliday for his PhD thesis on "Surface structure of the ruthenium oxides: correlating atomic displacements with electronic structure" and graduation earlier this...
wahl.wp.st-andrews.ac.uk
Congratulations!
Congratulations to Daniel Halliday for his PhD thesis on "Surface structure of the ruthenium oxides: correlating atomic displacements with electronic structure" and graduation earlier this month!
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Reposted by Wahl group account
St Andrews School of Physics and Astronomy @physastrostand.bsky.social · 19/06/2026
CELEBRATION FOR DR BRUCE SINCLAIR After four decades of teaching, many of you will know and have been inspired by Dr Bruce Sinclair. To mark Bruce's achievement, a celebration will take place from 10.00am to 6.30pm on Friday 26 June 2026. Register - ow.ly/N2MR50Z6JJl
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Henry Legg @henrylegg.bsky.social · 17/06/2026
In the very sunny Scottish highlands with the St Andrews condensed matter groups for a fun 3 days of scientific talks (and a bit of fun) Photo courtesy of @wahlgroup.bsky.social
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Wahl group account @wahlgroup.bsky.social · 17/06/2026
Burn meeting 2026 Condensed matter retreat at the Burn in Glenesk with lot's of physics, some football and exciting...
wahl.wp.st-andrews.ac.uk
Burn meeting 2026
Condensed matter retreat at the Burn in Glenesk with lot's of physics, some football and exciting discussions.
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Wahl group account @wahlgroup.bsky.social · 09/06/2026
Scanning tunneling microscopy in art If you are interested in physics and art, come to see the exhibition Quantum Dialogues at the Byre Theatre - with exhibits on display 9th June until 31st July....
wahl.wp.st-andrews.ac.uk
Scanning tunneling microscopy in art
If you are interested in physics and art, come to see the exhibition Quantum Dialogues at the Byre Theatre - with exhibits on display 9th June until 31st July. Below...
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Wahl group account @wahlgroup.bsky.social · 22/05/2026
Condensed Matter Retreat It's that time of year again - looking forward to our annual condensed matter retreat at the Burn in Glenesk and to an exciting programme and discussions. For more...
wahl.wp.st-andrews.ac.uk
Condensed Matter Retreat
It's that time of year again - looking forward to our annual condensed matter retreat at the Burn in Glenesk and to an exciting programme and discussions. For more information...
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Wahl group account @wahlgroup.bsky.social · 10/04/2026
Minicolloquia on correlated electrons at CMD32 Only five days left until abstract submission deadline on 15 April (don't bet on it being extended!) - submit now your abstracts for minicolloquia 02...
wahl.wp.st-andrews.ac.uk
Minicolloquia on correlated electrons at CMD32
Only five days left until abstract submission deadline on 15 April (don't bet on it being extended!) - submit now your abstracts for minicolloquia 02 and 06 at the CMD...
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Wahl group account @wahlgroup.bsky.social · 10/04/2026
Only five days left until abstract submission deadline on 15 April (don't bet on it being extended!) - submit now your abstracts for minicolloquia 02 and 06 at the CMD32 (oepg-cmd-jointmeeting2026.uni-graz.at/en/), with an exciting programme of invited speakers.
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Wahl group account @wahlgroup.bsky.social · 09/03/2026
Looking forward to a week of discussions and talks on physics at the DPG spring meeting #DPGDD26. See wahl.wp.st-andrews.ac.uk where and when to meet us and for a list of our contributions.
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Wahl group account @wahlgroup.bsky.social · 09/03/2026
Meet us at the DPG spring meeting in Dresden wahl.wp.st-andrews.ac.uk/2026/03/09…
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Wahl group account @wahlgroup.bsky.social · 11/02/2026
Interested in pursuing an EngD at the boundary between industry and University to explore new technologies for closed loop scanning with ultra-high resolution? Apply for our project in close collaboration with Razorbill Instruments at cdtphotonics.hw.ac.uk/project/deve.... Deadline 31st March.
cdtphotonics.hw.ac.uk
Development of a closed-loop scanner for atomic-scale imaging and spectroscopy - CDT in Applied Photonics
Project Description Imaging and measurements at length scales of picometers open a new frontier enabling sub-atomic precision in scanning-probe methods, but also for optical spectroscopy techniques. A...
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Wahl group account @wahlgroup.bsky.social · 11/02/2026
Explorers wanted! wahl.wp.st-andrews.ac.uk/2026/02/11…
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Wahl group account @wahlgroup.bsky.social · 08/01/2026
Looking for a PhD position combining theory and realistic modelling? We are looking for physics geeks with a hunch for numerical modelling to combine many body methods with simulations of quasiparticle interference, and who don't mind being a bit delocalised. www.st-andrews.ac.uk/study/fees-a...
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Wahl group account @wahlgroup.bsky.social · 08/01/2026
Currently recruiting wahl.wp.st-andrews.ac.uk/2026/01/08…
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Wahl group account @wahlgroup.bsky.social · 19/12/2025
Superconducting order parameter of UPt₃ wahl.wp.st-andrews.ac.uk/2025/12/19…
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Wahl group account @wahlgroup.bsky.social · 19/12/2025
What is the superconducting order parameter of UPt₃? Read our new preprint at arxiv.org/abs/2512.15845 to find how we use Andreev bound states to probe the symmetry of the superconducting order parameter.
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Wahl group account @wahlgroup.bsky.social · 15/12/2025
Congratulations! wahl.wp.st-andrews.ac.uk/2025/12/15…
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Reposted by Wahl group account
King group @ St Andrews @kinggroup.bsky.social · 15/11/2025
New preprint showing how long-wavelength moiré potentials and flat electronic bands can be generated from the interplay of a large lattice mismatch and an additional periodic modulation from a charge-density wave; with @wahlgroup.bsky.social & @maxivlaboratory.bsky.social. arxiv.org/abs/2511.05648
arxiv.org
Flat electronic bands from cooperative moiré and charge order
The formation of flat electronic bands from long-wavelength superperiodic moiré potentials in van der Waals heterostructures underpins the creation and control of a host of highly-tuneable correlated ...
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Wahl group account @wahlgroup.bsky.social · 21/09/2025
This is really scary - I always thought physics was safe. It would be huge loss to see physics departments close across the country. www.theguardian.com/education/20...
theguardian.com
Quarter of UK university physics departments at risk of closing, survey finds
Four out of five making staff cuts as physicists say findings are ‘great concern’ for UK’s leadership in important areas
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Wahl group account @wahlgroup.bsky.social · 19/09/2025
Where to study Physics in the UK? St Andrews in top spot for Physics&Astronomy and place 2 overall! #evertoexcel @uniofstandrews.bsky.social t.co/tynr1C2V2h
t.co
https://www.thetimes.com/uk-university-rankings/league-table
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King group @ St Andrews @kinggroup.bsky.social · 14/09/2025
Welcome to Ferran Aliagas Puigdomènech, who joins us from Universiteit van Amsterdam as a new PhD student in the group, working jointly with us and @wahlgroup.bsky.social
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King group @ St Andrews @kinggroup.bsky.social · 03/09/2025
Many congratulations to Dan on successfully defending his PhD thesis: using LEED-IV to track minute structural distortions at ruthenate surfaces, and understanding their implications on electronic structure. Dan worked jointly with us, @wahlgroup.bsky.social and @diamondlightsource.bsky.social
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Wahl group account @wahlgroup.bsky.social · 23/08/2025
Looking for highly motivated individuals who are keen to work on superconductivity in thin films of lanthanum nickelates. The project encompasses thin film growth by MBE, ARPES and STM. For the full advert, see www.vacancies.st-andrews.ac.uk/Vacancies/W/....
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Wahl group account @wahlgroup.bsky.social · 21/08/2025
Currently recruiting wahl.wp.st-andrews.ac.uk/2025/08/21…
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Wahl group account @wahlgroup.bsky.social · 31/07/2025
That’s calcQPI, our code to calculate quasiparticle interference images, published. We find it indispensable to decipher our measurements! Find a survey of its features at www.arxiv.org/abs/2507.22137, the code is on GitHub at github.com/gpwahl/calcq....
simulated QPI image
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Wahl group account @wahlgroup.bsky.social · 17/06/2025
Quantum materials making a stretch: giant magnetoelasticity driven by exchange interactions in Sr₄Ru₃O₁₀. Read in www.nature.com/articles/s41... how Carolina established control of the surface magnetization and probed it through Van Hove singularities. #evertoexcel @uniofstandrews.bsky.social
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Wahl group account @wahlgroup.bsky.social · 17/06/2025
Giant magnetoelastic coupling in a correlated ferromagnet wahl.wp.st-andrews.ac.uk/2025/06/17…
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King group @ St Andrews @kinggroup.bsky.social · 24/05/2025
Paper on phase-selective growth control and magnetic properties of monolayer CrTe2 and Cr2Te3, together with @wahlgroup.bsky.social and @diamondlightsource.bsky.social, out now in npj Quantum Materials: rdcu.be/enrwg
rdcu.be
From ferromagnetic semiconductor to antiferromagnetic metal in epitaxial CrxTey monolayers
npj Quantum Materials - From ferromagnetic semiconductor to antiferromagnetic metal in epitaxial CrxTey monolayers
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St Andrews School of Physics and Astronomy @physastrostand.bsky.social · 20/05/2025
We are taking applications for the URF call (royalsociety.org/grants/unive...). Candidates should submit their application documents (draft for the 4 page proposal (royalsociety.org/-/media/gran...) and an up to date CV) by 1 July to physdor@st-andrews.ac.uk. Candidates will be informed by 4th July.
royalsociety.org
University Research Fellowship | Royal Society
This scheme is for outstanding scientists who are in the early stages of their research career and have the potential to become leaders in their field. These long-term fellowships provide the opportun...
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Wahl group account @wahlgroup.bsky.social · 14/05/2025
New preprint from CDQM at arxiv.org/abs/2505.07942: a study by quasi-particle interference and ARPES of the electronic structure of monolayer CrTe₂. Some of the first results from Olivia's STM4. Great collaboration with Naina, Akhil and King group.
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Wahl group account @wahlgroup.bsky.social · 14/05/2025
New preprint: Quasi-particle interference of monolayer CrTe2 wahl.wp.st-andrews.ac.uk/2025/05/14…
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King group @ St Andrews @kinggroup.bsky.social · 14/05/2025
New preprint with @wahlgroup.bsky.social on the electronic structure of antiferromagnetic monolayer CrTe2: arxiv.org/abs/2505.07942
arxiv.org
Electronic structure of monolayer-CrTe$_2$: an antiferromagnetic 2D van der Waals material
Magnetic van der Waals materials are an important building block to realize spintronic functionalities in heterostructures of two-dimensional (2D) materials. Yet, establishing their magnetic and elect...
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Wahl group account @wahlgroup.bsky.social · 24/04/2025
Peter's inaugural lecture is now available online at youtu.be/U87-k33xGU4?...
youtu.be
Inaugural Lecture Prof Peter Wahl
YouTube video by University of St Andrews
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Wahl group account @wahlgroup.bsky.social · 17/03/2025
Meet us and hear about our research at the APS March meeting in Anaheim: Peter Wahl on 'Why the surface of Sr₂RuO₄ is not superconducting' Carolina Marques on 'Exchange-driven Magnetoelastic Coupling in a Strongly Correlated Electron Material' (for times see rb.gy/x6we8k)
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Wahl group account @wahlgroup.bsky.social · 17/03/2025
Meet us at the APS March Meeting 2025 wahl.wp.st-andrews.ac.uk/2025/03/17…
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Wahl group account @wahlgroup.bsky.social · 11/03/2025
Enjoying exciting talks and discussions at the retreat of the Centre for Designer Quantum Materials (www.cdqm.uk) at the Burn.
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Wahl group account @wahlgroup.bsky.social · 10/03/2025
Our paper on how quasiparticle interference (QPI) can probe moiré electronic structures in twisted bilayer materials is out, bridging modelling of QPI imaging and electronic structure in twisted heterostructures! 🌀🔬 Read the 📄 here: doi.org/10.1103/Phys... #QuantumMaterials #STM #MoiréPhysics
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Wahl group account @wahlgroup.bsky.social · 03/03/2025
Looking forward to the retreat of the Centre for Designer Quantum Materials at the Burn and a programme (theburn2025.wp.st-andrews.ac.uk) full of exciting talks and discussions.
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Wahl group account @wahlgroup.bsky.social · 24/02/2025
Celebrating 10 years of ultra-low vibrations in St Andrews, and whatever else there is to celebrate, with a ULV lab cake ...
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Wahl group account @wahlgroup.bsky.social · 05/02/2025
Interested in an exciting PhD project working in a stimulating environment in the Centre for Designer Quantum Materials, combining cutting-edge experiments, bespoke instrumentation, complex data analysis and numerical modelling? Any questions get in touch, apply at www.st-andrews.ac.uk/pgr/home.htm.
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