⚛️ 🧪 ultra-high 2D doping densities from atomic precision advanced manufacturing fundamentally alter the properties of semiconductors including introducing bands at the Gamma point in Si that could provide a path toward enhanced tunneling for energy efficient electronics doi.org/10.1088/1361...

I'm reminded of these wise words from Mr. Fred Rogers on what would have been his 98th birthday. We are all in this together. Let's renew ourselves to the fight for the common good. It's all the more important during these difficult times.

Trump has shredded the Constitution. He's taken an axe to checks and balances. He's using the presidency to line his own pockets. This is why we need to make sure that on March 28 — two weeks from today— we march across America in the largest demonstration in the nation’s history. NoKings.org

My latest blog entry is about Albuquerque's Neighborhood Association Recognition Ordinance and its unusually quirks that make NAs exceedingly powerful in abq, while having standing on issues that can have citywide implications open.substack.com/pub/abqurban...

🧪 ⚛️ neat result from Sandia/CINT and EAG using multiscale, multiperspective STM, MBE, and STEM to study interfacial disorder at Si/SiGe quantum well interfaces to predict, with effective mass theory, confinement potential variation for semiconductor qubits doi.org/10.1038/s415... #SurfSci

⚛️ 🧪 recent work from Sandia and the μ-ATOMS EFRC: unexpectedly high carrier mobilities in SiGeSn alloys that might be caused by short range atomic ordering. This work suggests a large to improve semiconductor quantum device performance through materials science doi.org/10.1002/aelm...

🧪 ⚛️ identifying atomic defects in narrow band gap #semiconductors like InAs is hard. AFRL & Sandia have found defects from proton irradiation at infrared detector operating temperatures that are gone at 300 K; a key step to designing better electronics for space doi.org/10.1063/5.03...

The Bill of Obligations by Richard Haass is a great companion to this. It’s a deeper dive into what we owe each other and our country to make a stronger, healthier democracy

⚛️ 🧪 we were surprised by the lack of plasma resonance in our highly doped P delta layers in Si, so we developed a model to explain it and a framework to design 2D systems with suppressed plasma resonance #semiconductor #SurfSci doi.org/10.1103/Phys...

I highly recommend reading On Tyranny by Timothy Snyder. It’s a playbook to defend democracy as it is ever more clear that the tactics from the 1st Trump term have only worsened to match past and modern tyrants bookshop.org/p/books/on-t...

These are the ingredients for vibrant, livable communities!

Want to speak at City Council but not sure what to say? Join our Public Comment Workshop to learn how to give a clear 1-minute comment on the proposed IDO zoning updates. Public input may be limited, so let’s make every second count. 📅 Feb 17 • 6PM • Virtual • meet.google.com/XUG-MXZF-DCG

⚛️ 🧪#TBT here we used MBE, STM, and DFT (experiment + theory) to study the atomic structure of InAs surfaces and were surprised that Sb digs into the surface, which impacts growing IR sensors with abrupt interfaces doi.org/10.1063/1.49... #SurfSci #Semiconductor

This great! I’m a firm believer that close coordination between theorists and experimentalists is much more impactful than the sum of them working in isolation.

⚛️ 🧪 new work from Sandia National Labs showing why the expected Ga vacancy isn’t observed experimentally in GaAs: it’s annihilated by other defects too quickly. This multiscale modeling approach is essential for improving #semiconductors in radiation environments like space doi.org/10.1103/scn4...

⚛️ 🧪 here we used vapor hydrofluoric acid (HF) to remove the oxide from Si and SiGe more cleanly than by dipping in liquid HF and recrystallized the surface at 600 C, low enough for CMOS integration or to preserve SiGe quantum wells for qubits doi.org/10.1021/acs.... #semiconductor #SurfSci

Another American killed by Donald Trump’s invasion force in Minneapolis. Shot 5 times AFTER being restrained. This is not the America I know, but I do know THIS… This invasion of an American city is only possible because Republicans are complicit and refuse to rein in this madness.

⚛️ 🧪 this is is a neat mechanism making superradiance happen at elevated temperatures (not cryogenic) in a crystal through lattice vibrations and emerging quantum coherence www.nature.com/articles/s41...

⚛️ 🧪 the DOE nanoscale science research centers are amazing resources. Here’s a review highlighting much of the #semiconductor research being conducted there by staff and collaborators doi.org/10.1063/5.02...

⚛️ 🧪 this is a neat approach using secondary electrons instead of something slower like an STM to find single implanted ions for making quantum devices doi.org/10.1021/acs....

This is excellent! I regret that I couldn’t attend yesterday

Focus on what you can do and offer a vision of the best we can be to live up to the ambitions of the Declaration of Independence and the Constitution. Hope with positive action is greater than nihilism!

⚛️ 🧪 #TBT sometimes you learn more from computation + experiment than either alone. Here we used STM, MBE, and DFT to explore atomic arrangements on InSb with insights into how Sb and As intermixing can impact alloys and superlattices for IR detectors doi.org/10.1016/j.su... #SurfSci #semiconductor

Great option if you’re unable to attend in ABQ in person (e.g. if you’re getting over the flu)

ABQ reminder: if you like affordable neighborhoods with small shops and residences close to each other, please show the city council that you support reducing or removing parking mandates (doesn’t mean banning parking altogether)! Note, this is actually at 5 PM tonight.

We’ve watched as my GOP colleagues have looked the other way while the President and his Admin have ignored the Constitution & rule of law & wreaked havoc on our country. If lawmakers won’t stand up for the American people, then the American people must stand up at the ballot box in November.

Physicists have experimentally generated stable 3D lump solitons—localized light wave packets that maintain their shape and interact without distortion—using a specially engineered crystal. doi.org/hbjm98

⚛️ 🧪 Finding defects and identifying the epitaxial conditions that cause them is an important step in designing better #semiconductors, including wide band gap III-phosphides doi.org/10.1088/1361...

Quantum computers could be chemistry’s next big tool, helping researchers run ever more complex simulations, model molecules, and design new materials from first principles. cen.acs.org/materials/el... #chemsky 🧪

What should a major scientific project do if one of its grants is cancelled or an unexpected budget over-run occurs? @cyberlyra.bsky.social draws on the history of NASA space missions to examine which approaches work, and which make things worse. 🧪⚛️🔭🛰️ www.science.org/doi/10.1126/...

@strongtownsabq.bsky.social ABQ doesn’t need a proposed gas station at Carlisle and Indian School where Whole Foods used to be, near 3 others already. If I’m reading this right, we can oppose the proposal on 1/20/26 www.cabq.gov/planning/boa... (found via Nob Hill News)

Negative and null results are so important!

⚛️ 🧪 Atomic scale interactions matter as #semiconductor device dimensions reach countable numbers of atoms. This lays out the challenges, opportunities, and recent advances to scale up manufacturing atomically precise devices for transistors, qubits, and new materials #SurfSci doi.org/10.1088/2399...

Interesting take on how electric vehicles, while reducing emissions, don’t necessarily improve health because people driving remain inactive as cities are still too car focused @strongtownsabq.bsky.social

The city of ABQ has extended the deadline to 1/14/26, so please respond if you haven’t yet!

Before Las Cruces passed zoning reform, residents voiced concerns about traffic, taxes, and neighborhood change — many similar to debates in Albuquerque today. Part 2 of our conversation digs into what people feared and what actually happened. #abq #albuquerque www.youtube.com/watch?v=e4yG...

I’d love to see real row houses in ABQ

⚛️ 🧪 Here’s a surface science study to expand atomic precision advanced manufacturing (APAM) capabilities by investigating doping precursors beyond PH3 and resists beyond H for single dopant placement for atomic scale devices doi.org/10.1016/j.cp... #semiconductor

If you live in ABQ and want to see the city become more vibrant and livable, please speak in favor of reducing parking mandates and increasing support for incremental community-led development!

As Albuquerque debates zoning reform, we went to Las Cruces to learn from a city that’s already done it. Why did they change their zoning—and what actually happened afterward? Watch the part 1 of the conversation ⬇️ www.youtube.com/watch?v=0g0Q...

⚛️ 🧪 Here’s an example of the cool physics that has been explored with APAM: engineering electronic properties through atomic scale patterning of 2D systems doi.org/10.1038/s414... #semiconductor

Overnight the President ordered the invasion of Venezuela and capture of its President. While Maduro clearly is a corrupt and illegitimate thug who oversaw the destabilization and suffering of millions, the fact remains that the U.S. President is acting on authority he does not have. ⬇️

The second #CHIPSAct institution has been defunded by the federal government since January 2025. The SMART USA Institute aimed to train 110,000 workers over five years. Now, its $285-million five-year contract has been terminated. spectrum.ieee.org/semiconducto...

⚛️ 🧪 This barrier design greatly improved the performance of III-V semiconductor infrared detectors and was a major advancement for the field: doi.org/10.1063/1.23... #semiconductor

Corridors are great but it can't be all we do! open.substack.com/pub/abqurban...

Republicans rushed tax cuts for the wealthy but delayed their cuts to Medicaid and food assistance. Why? So they don't kick in until after the midterms. Help spread the word.

⚛️ 🧪 Remember your 1st 1st author paper? Mine was about how using Bi as a surfactant provides another knob to control the composition of InAsSb for infrared optoelectronics doi.org/10.1063/1.48... What was your 1st 1st author paper? #semiconductor

It’s building from the foundation!

⚛️ 🧪 This is great work investigating how the radiation in space damages narrow band gap semiconductors, which is important for deploying optoelectronics and high-mobility devices doi.org/10.1109/TNS.... #semiconductor