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...

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...

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...

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...

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...

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...

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!

wahl.wp.st-andrews.ac.uk

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

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

Burn meeting 2026 Condensed matter retreat at the Burn in Glenesk with lot's of physics, some football and exciting...

Burn meeting 2026

Condensed matter retreat at the Burn in Glenesk with lot's of physics, some football and exciting discussions.

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....

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...

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...

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...

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...

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...

wahl.wp.st-andrews.ac.uk

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.

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.

Meet us at the DPG spring meeting in Dresden https://wahl.wp.st-andrews.ac.uk/2026/03/09/meet-us-at-the-dpg-spring-meeting-in-dresden/

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.

Explorers wanted! https://wahl.wp.st-andrews.ac.uk/2026/02/11/explorers-wanted/

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...

Currently recruiting https://wahl.wp.st-andrews.ac.uk/2026/01/08/currently-recruiting-4/

Superconducting order parameter of UPt₃ https://wahl.wp.st-andrews.ac.uk/2025/12/19/superconducting-order-parameter-of-upt%e2%82%83/

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.

Congratulations! https://wahl.wp.st-andrews.ac.uk/2025/12/15/congratulations-6/

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

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 ...

arxiv.org

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...

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

theguardian.com

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

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

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

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/....

Currently recruiting https://wahl.wp.st-andrews.ac.uk/2025/08/21/currently-recruiting-3/

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....

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

Giant magnetoelastic coupling in a correlated ferromagnet https://wahl.wp.st-andrews.ac.uk/2025/06/17/giant-magnetoelastic-coupling-in-a-correlated-ferromagnet/