APS March Meeting 2023, Day 4 + wrapup

 My last day at the March Meeting was a bit scattershot, but here are a few highlights:

• In a session about spin transport, the opening invited talk by Jiaming He was a clear discussion of recent experimental results on spin Seebeck effects in the magnetic insulator LuFeO3. The system is quite complicated because the net magnetization direction depends nontrivially on the external field, leading to spin transport signatures with a complicated field orientation relationship.
• There was an invited session about 2D magnets, and Roland Kawakami gave a clear, pedagogical talk about how they have learned to grow epitaxially nice structures between van der Waals magnets (like Fe3GeTe2) and topological insulators (Bi2Te3).   This was followed by a tag-team talk by Vishakha Gupta and Thow Min Cham from Cornell, presenting some great results about spin orbit torque measurements coupling topological insulators and van der Waals magnets, where a gate can be used to dial around the chemical potential in the TI, leading to changes in the anomalous Hall effect.
• I did check out the history of science session, featuring a very nice talk about the 75th anniversary of the foundations of quantum electrodynamics by Chad Orzel, including a book recommendation that I need to follow up on.  

Overall, it was a good meeting, certainly the closest thing to a "normal" March Meeting since 2019.  I'm not a fan of Las Vegas as a venue, though.  The conference center was a bit too small (leading to a genuinely concerning jamming transition in the hallways at one point), the food was generally criminally expensive, and too many places indoors smelled like a combination of ancient cigarette smoke and ineffective carpet cleaner.   It will be interesting to see what the stats are like for things like the downloads of recorded talks and viewing of the virtual component of the meeting that happens in ten days.