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It exhibits an incipient ferroelectric phase transition (in violation of the Spaldin-Hill rule) extrapolated to lie at 6.0 K Kelvin but suppressed due to quantum fluctuations (as in SrTiO3). The QCP theory of Khmelnitskii for such uniaxial ferroelectrics predicts that the inverse isothermal electric susceptibility varies as T cubed, in contrast to that for pseudo-cubic materials such as SrTiO3 or KTaO3, a hypothesis we verify."},"verification_status":{"content_addressed":true,"pith_receipt":true,"author_attested":false,"weak_author_claims":0,"strong_author_claims":0,"externally_anchored":false,"storage_verified":false,"citation_signatures":0,"replication_records":0,"graph_snapshot":true,"references_resolved":false,"formal_links_present":false},"canonical_record":{"source":{"id":"1507.01880","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cond-mat.mtrl-sci","submitted_at":"2015-07-07T17:09:06Z","cross_cats_sorted":[],"title_canon_sha256":"9e7f4410b8c8d9b67cd8f19fbd05220816407a30f990a744163eac34be3c8887","abstract_canon_sha256":"ce49118b8a14a4c5d2f89e049e2146d68d2e387a2dc0beda2a1c56a1d0f4780a"},"schema_version":"1.0"},"receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-05-18T01:35:22.051438Z","signature_b64":"Rih0wgeJZ2DN5ocoZz+bINFSITPWUocSXxuG8LGii57zISfb6yqRpXiW7Di8RjoIWuPlq7Do/lJEUHzv5Wj6Cw==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"bbc29b1e3a38d157fe4b028a68b89b6119e33ed1f93081b74990025c5bedf1b3","last_reissued_at":"2026-05-18T01:35:22.050642Z","signature_status":"signed_v1","first_computed_at":"2026-05-18T01:35:22.050642Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"graph_snapshot":{"paper":{"title":"Quantum Critical Point study in Multiferroic Hexaferrites: BaFe12O19, SrFe12O19, and PbFe3Ga9O19 -- Verification of the Khmelnitskii Theory","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cond-mat.mtrl-sci","authors_text":"A. 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