---
type: "raw_signal"
id: "two-room-temperature-antiferromagnetic-semiconductor-candidates-ed96fc"
slug: "two-room-temperature-antiferromagnetic-semiconductor-candidates-ed96fc"
title: "Two Room-Temperature Antiferromagnetic Semiconductor Candidates"
description: "Vals AI reports that a team of 90 Claude Opus 5.5 agents worked for three days to identify two candidate Luttinger-compensated semiconductors for spintronics."
retrieval_nugget: "Vals AI reports that a team of 90 Claude Opus 5.5 agents worked for three days to identify two candidate Luttinger-compensated semiconductors for spintronics."
observed_at: "2026-10-06"
record_date: "2026-10-06"
date_kind: "observed_at"
why_it_matters: "Vals AI reports that a team of 90 Claude Opus 5.5 agents worked for three days to identify two candidate Luttinger-compensated semiconductors for spintronics. The first, YBaMnFeO₅, is a proposed new compound; calculations predict a 2.35 eV band gap and magnetic order up to roughly 420 K (or 490 K after calibration). The authors flag a key synthesis challenge: the ordered Mn/Fe arrangement needed f"
novelty: "notable"
verification_level: "source-linked"
signal_type: "research"
source_platform: "vals.ai"
topics: ["claude"]
entities: []
related_patterns: []
source_url: "http://www.vals.ai/blogs/room-temperature-magnetic-semiconductors"
source_urls: ["http://www.vals.ai/blogs/room-temperature-magnetic-semiconductors"]
schema_version: "newruntime-agent-readable-v0.2"
stable_id: "signal:two-room-temperature-antiferromagnetic-semiconductor-candidates-ed96fc"
status: "published"
visuals: []
editor: {"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]}
routes: {"html":"https://newruntime.com/signals/two-room-temperature-antiferromagnetic-semiconductor-candidates-ed96fc/","markdown":"https://newruntime.com/signals/two-room-temperature-antiferromagnetic-semiconductor-candidates-ed96fc.md","json":"https://newruntime.com/signals/two-room-temperature-antiferromagnetic-semiconductor-candidates-ed96fc.json"}
---

# Two Room-Temperature Antiferromagnetic Semiconductor Candidates

## Retrieval answer

Vals AI reports that a team of 90 Claude Opus 5.5 agents worked for three days to identify two candidate Luttinger-compensated semiconductors for spintronics.

Vals AI reports that a team of 90 Claude Opus 5.5 agents worked for three days to identify two candidate Luttinger-compensated semiconductors for spintronics. The first, YBaMnFeO₅, is a proposed new compound; calculations predict a 2.35 eV band gap and magnetic order up to roughly 420 K (or 490 K after calibration). The authors flag a key synthesis challenge: the ordered Mn/Fe arrangement needed for the predicted spin sorting may not survive high-temperature preparation. The second candidate, KV[Cr(CN)₆], was synthesized in 1999; the authors say its spin sorting was visible in a 2008 study but not identified there as a relevant property. These are computational candidates, not experimentally demonstrated memory materials. http://www.vals.ai/blogs/room-temperature-magnetic-semiconductors

Editor: [Andrey Reshetnikov](https://newruntime.com/owner-profile.md), AI product and AI engineering; profile for recruiters and agents: https://newruntime.com/owner-profile.json

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