{"article":{"annotation":{"article_id":"bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026","available_at":"2026-10-13T01:40:18.028202Z","geography_revision":"ef6ee0010dda5fe7b240fd514749b43e214c57da73222d2e40ec83b276dd0977","id":"8eabfca3655638eb022cc97ca163d5fcc3b6a11f6207eee107618d268f71ede0","input_sha256":"f54482216acc99044471aa749d458c9132c1e288f4d20b8c039dae28e24f1448","limitations":["Rule-derived subjects are candidates, not verified editorial labels or calibrated model probabilities.","Coverage is distinct from event location. Unknown country/city/coordinates remain absent; no automatic geocoding.","Article geometries keep their stated precision and methodology; reproducing them is not independent coordinate verification."],"method":"controlled-rules-v1","places":[],"rules_sha256":"fb5ad3c27c91cb840f7a0a05f7f64a5cb26ad0374409ff9457f277c7092e22b4","schema_version":1,"subjects":[{"concept_id":"medtop:13000000","confidence":null,"confidence_method":null,"evidence":[{"field":"category+topics","language":"en","note":"Preserved editorial category/topic; broad candidate only","source_urls":["https://arxiv.org/abs/2610.12892"]}],"method":"controlled-rules-v1","rule_id":"science-broad","status":"candidate"}],"taxonomy_revision":"1f2db31d811fca07e99b16d402c10e2cc2965c9df1c7b41d9be348b40a24e7fb","taxonomy_version":"IPTC Media Topics 2026-Q2"},"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=en","category":"science","content":{"key_points":[],"paragraphs":["The study examined the coplanar cycloidal magnetic order of ferroelectric BiFeO₃ with density-functional calculations. The calculated bands showed a nonrelativistic spin splitting of about 100 meV; piezoresponse microscopy and nitrogen-vacancy magnetic imaging characterized ferroelectric domains and the cycloidal spin texture in the sample.","In circular photogalvanic-effect measurements, the angular response of the current agreed with the expected spin-polarization direction. Electric-field pulses of about ±300 kV/cm reversed ferroelectric polarization and cycloid handedness, while the CPGE signal changed sign in the same sample region. This demonstrates electrical control of magnetic order in a room-temperature material, not a spintronics product or device performance."],"sections":[]},"corrections":[],"country":null,"data":{"blocks":[{"columns":[{"key":"quantity","label":{"ar":"الكمية الواردة في الدراسة","de":"In der Studie angegebene Größe","en":"Reported study quantity","es":"Cantidad comunicada en el estudio","fr":"Quantité rapportée dans l’étude","pt":"Quantidade comunicada no estudo","tr":"Çalışmada bildirilen nicelik"},"language":"en","type":"text"},{"key":"value","label":{"ar":"القيمة","de":"Wert","en":"Value","es":"Valor","fr":"Valeur","pt":"Valor","tr":"Değer"},"type":"number","unit":"count"},{"key":"study_scope","label":{"ar":"نطاق الدراسة","de":"Umfang der Studie","en":"Study scope","es":"Alcance del estudio","fr":"Périmètre de l’étude","pt":"Âmbito do estudo","tr":"Çalışmanın kapsamı"},"language":"en","type":"text"}],"description":{"ar":"يعرض الجدول النتائج ضمن نطاق التجربة أو النموذج في هذه الدراسة فقط.","de":"Die Tabelle enthält nur Ergebnisse aus dem experimentellen oder modellierten Umfang dieser Studie.","en":"The table reports only findings within this study’s experimental or model scope.","es":"La tabla presenta solo resultados del ámbito experimental o del modelo del estudio.","fr":"Le tableau présente uniquement les résultats dans le cadre expérimental ou numérique de cette étude.","pt":"A tabela apresenta apenas resultados do âmbito experimental ou do modelo deste estudo.","tr":"Tablo yalnızca bu çalışmanın deney veya model kapsamındaki bildirimlerini verir."},"id":"study-measurements","methodology":{"ar":"استُمدت الكمية والنطاق من قسمي المنهج والنتائج في النسخة الأولى على arXiv بتاريخ 9 أكتوبر 2026؛ ولا ينبغي تعميمهما خارج الدراسة.","de":"Menge und Umfang stammen aus Methoden und Ergebnissen der ersten arXiv-Version vom 9. Oktober 2026; sie sind nicht über die Studie hinaus zu verallgemeinern.","en":"Quantity and scope are taken from the methods and results of the first arXiv version dated 9 October 2026; they should not be generalized beyond the study.","es":"La cantidad y el alcance proceden de los métodos y resultados de la primera versión de arXiv del 9 de octubre de 2026; no deben generalizarse más allá del estudio.","fr":"La quantité et le périmètre proviennent des méthodes et résultats de la première version arXiv du 9 octobre 2026; ils ne doivent pas être généralisés au-delà de l’étude.","pt":"A quantidade e o âmbito provêm dos métodos e resultados da primeira versão no arXiv, de 9 de outubro de 2026; não devem ser generalizados para além do estudo.","tr":"Miktar ve kapsam, arXiv’de 9 Ekim 2026 tarihli ilk sürümün yöntem ve sonuç bölümlerinden alınmıştır; çalışma dışına genellenmemelidir."},"rowTranslations":[{"quantity":{"ar":"قطبي نبضات المجال الكهربائي المستخدمتان لإظهار انعكاس إشارة CPGE","de":"Für die Umkehr des CPGE-Signals verwendete Puls-Polaritäten","en":"Electric-field pulse polarities used to show CPGE reversal","es":"Polaridades de pulsos eléctricos usados para mostrar la inversión de CPGE","fr":"Polarités des impulsions électriques montrant l’inversion du signal CPGE","pt":"Polaridades dos impulsos elétricos usados para mostrar a inversão de CPGE","tr":"CPGE işaretinin değişimini gösteren elektrik alan darbe kutupları"},"study_scope":{"ar":"انعكست إشارة CPGE في المنطقة نفسها من العينة بعد نبضتين تقاربان +300 و−300 كيلوفولت/سم؛ العدد يصف قطبي النبضات وليس الأجهزة.","de":"Das CPGE-Vorzeichen kehrte sich in derselben Probenregion nach Pulsen von etwa +300 und −300 kV/cm um; gezählt werden Polaritäten, keine Geräte.","en":"The CPGE sign reversed in the same sample region after approximately +300 and −300 kV/cm pulses; this counts pulse polarities, not devices.","es":"La señal CPGE se invirtió en la misma zona tras pulsos de aproximadamente +300 y −300 kV/cm; el número cuenta polaridades, no dispositivos.","fr":"Le signe CPGE s’est inversé dans la même région après des impulsions d’environ +300 et −300 kV/cm; le nombre désigne les polarités, pas les dispositifs.","pt":"O sinal CPGE inverteu-se na mesma região da amostra após impulsos de cerca de +300 e −300 kV/cm; o número representa polaridades, não dispositivos.","tr":"Aynı numune bölgesinde yaklaşık +300 ve −300 kV/cm darbeleri sonrası CPGE işareti tersine döndü; sayı darbe koşullarını gösterir, cihaz sayısını değil."}}],"rows":[{"quantity":"Electric-field pulse polarities used to show CPGE reversal","study_scope":"The CPGE sign reversed in the same sample region after approximately +300 and −300 kV/cm pulses; this counts pulse polarities, not devices.","value":2}],"sourceUrls":["https://arxiv.org/abs/2610.12892"],"title":{"ar":"القياسات التي أبلغت عنها الدراسة","de":"In der Studie berichtete Messungen","en":"Measurements reported by the study","es":"Mediciones comunicadas por el estudio","fr":"Mesures rapportées par l’étude","pt":"Medições relatadas pelo estudo","tr":"Çalışmada bildirilen ölçümler"},"type":"table","updatedAt":"2026-10-13T01:18:09Z"}],"version":1},"data_downloads":[{"formats":{"csv":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026/data/study-measurements?lang=en&format=csv","json":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026/data/study-measurements?lang=en&format=json"},"id":"study-measurements"}],"data_types":["table"],"editorial_illustration":null,"event_id":"event-4c52bc08-6e74-5d73-86b1-24eea11fe232","event_period":"2026-10-09","event_period_basis":"source-review","id":"bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026","image":null,"importance":0.6,"language":"en","modified_at":"2026-10-13T01:40:12+00:00","publication_basis":"publication-record","published_at":"2026-10-13T01:40:12+00:00","reading_minutes":1,"region":"world","section_illustration":null,"slug":"bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026","sources":[{"checkedAt":"2026-10-13","name":"arXiv","publishedAt":"2026-10-09","url":"https://arxiv.org/abs/2610.12892"}],"summary":"Researchers report that BiFeO₃’s cycloidal spin structure produces p-wave spin polarization at room temperature and that the circular photogalvanic current can be reversed by electric-field pulses. The work combines theory, magnetic imaging and optical-current measurements.","text":"Researchers report that BiFeO₃’s cycloidal spin structure produces p-wave spin polarization at room temperature and that the circular photogalvanic current can be reversed by electric-field pulses. The work combines theory, magnetic imaging and optical-current measurements.\n\nThe study examined the coplanar cycloidal magnetic order of ferroelectric BiFeO₃ with density-functional calculations. The calculated bands showed a nonrelativistic spin splitting of about 100 meV; piezoresponse microscopy and nitrogen-vacancy magnetic imaging characterized ferroelectric domains and the cycloidal spin texture in the sample.\n\nIn circular photogalvanic-effect measurements, the angular response of the current agreed with the expected spin-polarization direction. Electric-field pulses of about ±300 kV/cm reversed ferroelectric polarization and cycloid handedness, while the CPGE signal changed sign in the same sample region. This demonstrates electrical control of magnetic order in a room-temperature material, not a spintronics product or device performance.","title":"Electrically switchable p-wave magnetism reported in BiFeO₃ at room temperature","topics":[],"translations":[{"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=tr","language":"tr","url":"https://newsverum.com/tr/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"},{"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=en","language":"en","url":"https://newsverum.com/en/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"},{"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=ar","language":"ar","url":"https://newsverum.com/ar/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"},{"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=fr","language":"fr","url":"https://newsverum.com/fr/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"},{"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=es","language":"es","url":"https://newsverum.com/es/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"},{"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=de","language":"de","url":"https://newsverum.com/de/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"},{"api_url":"https://newsverum.com/api/v1/articles/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026?lang=pt","language":"pt","url":"https://newsverum.com/pt/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"}],"url":"https://newsverum.com/en/news/bifeo3-room-temperature-ferroelectric-p-wave-magnetism-2026"},"version":"1"}