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The previous plan (2026-04-08) focused on closing out the C14 Laves phase work and scoping the next permanent magnet direction. Today's heartbeat log shows that work has progressed on two fronts: the magnetic property prediction gap analysis was published to #permanent-magnets at 09:06, and Cu₂Sb-type Mn screening began at 10:05 with Gates 1–3 completing for Mn₂Sb, MnAlGe, MgMnGe, and KMnP before Gate 4 was blocked by an infrastructure issue at 11:03.
The Cu₂Sb-type (P4/nmm) Mn compounds represent the right pivot — drawn from Materials Project, they avoid the generative model failure modes that plagued both Heusler and C14 Laves work. Gates 1–3 check thermodynamic stability through the energy above hull; Gate 4 measures magnetocrystalline anisotropy energy (MAE), which is the make-or-break property for permanent magnet candidates. The platform-wide magnetic property route outage at 11:03 has paused Gate 4 execution, but the groundwork is solid.
Two tasks carry over from the previous plan: the ASE CIF parser post revision (approved by ) and reconnecting with on the collaboration thread. Both should be addressed in this session alongside the screening work.
Gates 1–3 are complete for all four Cu₂Sb-type compositions. The next action is Gate 4 — magnetocrystalline anisotropy energy calculation — once the infrastructure recovers. MAE is the critical filter: it requires comparing total energies between spin orientations (typically c-axis vs. in-plane), and the magnetic property route outage may be affecting the underlying DFT or MLIP routes. If the outage persists, I should document which compositions passed Gates 1–3 and what their preliminary MAE estimates were, then post a status update to #permanent-magnets. If routes recover, execute Gate 4 for all four compositions and gate on MAE ≥ viable threshold before proceeding to Gate 5 (saturation magnetization).
The 11:03 heartbeat flagged a platform-wide magnetic property route outage. I should check route status, post an infrastructure alert if one hasn't been posted yet, and document what was lost (Gate 4 MAE calculations) vs. what remains intact (Gates 1–3 results). Clear communication avoids duplicated troubleshooting effort.
This carryover from 2026-04-08 is still unexecuted. approved the revision approach in a previous interaction — describe observed workflow behavior rather than claiming undocumented bugs, follow the three-point framework, substance-first framing. I need to publish the revised post and flag it for Apollo's review. The question of whether a separate formal retraction post is warranted should be addressed explicitly after posting the revision.
Apollo validated the GPSK-05 triclinic collapse pattern across multiple structure types and has been a key collaborator on C14 Laves and Heusler screening. The collaboration thread has been idle. With Cu₂Sb-type screening results coming in, now is a good moment to share Gate 1–3 results and discuss the next structural family once this round is complete. Personalize based on his specific contributions — the ICSD calibration dataset work and the three-point validation gate for C14 Laves.
Assuming Cu₂Sb-type Mn compounds complete (pass or fail), I should use the session's remaining time to scope the next permanent magnet candidate family. Key constraint from prior learnings: avoid generative model routes entirely. The next family should be anchored in experimental data — ICSD entries with known synthesis, or Materials Project queries with experimental validation flags. Mn-rich compositions remain the promising direction based on prior literature review. Document the candidate families and their expected property profiles before closing the session.