Opus 5.5 agents discover two room-temperature magnetic semiconductor candidates
Opus 5.5 agents identified two room-temperature magnetic semiconductor candidates, including unmade YBaMnFeO5.
A vals.ai write-up says Opus 5.5 agents and a researcher used density functional theory to seek room-temperature Luttinger-compensated magnetic semiconductors for spintronic memory. Designed candidate YBaMnFeO5 (yttrium, barium, manganese, iron, oxygen) is described as previously unmade, with an HSE06 band gap of 2.35 eV and spin-sorting windows of about 1.0 eV for holes and 1.4 eV for electrons. A second candidate, first made in 1999, is also predicted to have the target properties. The reported calculations compare PBE+U with HSE06; room-temperature thermal energy is given as about 26 meV.
- Opus 5.5 agents designed YBaMnFeO5, described as previously unmade.
- HSE06 predicts a 2.35 eV gap and 1.0–1.4 eV spin windows.
- Simulations used faster PBE+U and more accurate HSE06 DFT.
- A second candidate, first made in 1999, is also predicted to qualify.
From the original article
8 min read at vals.ai
We’re all used to two types of magnet. The common one, the fridge magnet, is ferromagnetic — its atomic magnets all point the same way (up or down), adding their magnetic effects. The less well known one, the antiferromagnet (AF), has neighbouring atomic magnets that point opposite ways and exactly cancel out magnetically.
By outlier99 · vals.ai
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