{"id":7454,"date":"2026-11-09T05:19:42","date_gmt":"2026-11-09T10:19:42","guid":{"rendered":"https:\/\/canasanta.ca\/?p=7454"},"modified":"2026-11-09T05:19:42","modified_gmt":"2026-11-09T10:19:42","slug":"confirman-tercera-forma-magnetismo","status":"publish","type":"post","link":"https:\/\/canasanta.ca\/en\/al-dia\/confirman-tercera-forma-magnetismo\/","title":{"rendered":"CONFIRMAN UNA TERCERA FORMA DE MAGNETISMO"},"content":{"rendered":"<h2 style=\"margin-top:48px;margin-bottom:22px\">UN HALLAZGO QUE AMPL\u00cdA EL MAPA DEL MAGNETISMO<\/h2>\n<p style=\"line-height:1.75;margin-bottom:26px\">Durante d\u00e9cadas, los manuales de f\u00edsica explicaron el comportamiento colectivo de los imanes mediante dos grandes familias: el ferromagnetismo, responsable de la atracci\u00f3n de los imanes cotidianos, y el antiferromagnetismo, en el que orientaciones opuestas de los momentos magn\u00e9ticos se compensan. Un estudio difundido el 4 de noviembre de 2026 por el laboratorio estadounidense <strong>SLAC<\/strong> aporta pruebas experimentales especialmente s\u00f3lidas de una tercera clase: el <em>altermagnetismo<\/em>. No significa que alguien haya inventado un nuevo im\u00e1n, sino que se ha identificado con mayor precisi\u00f3n una organizaci\u00f3n magn\u00e9tica distinta, con propiedades que podr\u00edan resultar valiosas para la electr\u00f3nica.<\/p>\n<h2 style=\"margin-top:48px;margin-bottom:22px\">QU\u00c9 OBSERVARON LOS INVESTIGADORES<\/h2>\n<p style=\"line-height:1.75;margin-bottom:26px\">El equipo, encabezado por cient\u00edficos vinculados a <strong>SLAC<\/strong> y <strong>Stanford<\/strong>, estudi\u00f3 telururo de manganeso, conocido por su f\u00f3rmula MnTe. Este material hab\u00eda sido clasificado tradicionalmente entre los antiferromagn\u00e9ticos. Mediante t\u00e9cnicas especializadas de rayos X, los investigadores buscaron una se\u00f1al relacionada con la quiralidad: una asimetr\u00eda que permite distinguir determinadas orientaciones de la estructura magn\u00e9tica. Los resultados proporcionaron una firma experimental compatible con la fase altermagn\u00e9tica y ayudaron a diferenciarla de las dos categor\u00edas convencionales.<\/p>\n<h2 style=\"margin-top:48px;margin-bottom:22px\">POR QU\u00c9 NO ES UN IM\u00c1N CORRIENTE<\/h2>\n<p style=\"line-height:1.75;margin-bottom:26px\">En un ferromagneto, muchos espines electr\u00f3nicos se orientan de forma que producen una magnetizaci\u00f3n neta perceptible. En un antiferromagneto ideal, las orientaciones se compensan. Los altermagnetos tambi\u00e9n pueden carecer de magnetizaci\u00f3n macrosc\u00f3pica, pero su simetr\u00eda cristalina produce efectos electr\u00f3nicos que no encajan en la descripci\u00f3n antiferromagn\u00e9tica tradicional. Esa combinaci\u00f3n es la raz\u00f3n de su inter\u00e9s: podr\u00eda permitir manipular informaci\u00f3n asociada al esp\u00edn sin depender de los campos magn\u00e9ticos externos que acompa\u00f1an a otros materiales.<\/p>\n<figure style=\"float:left;width:450px;max-width:45%;margin:8px 24px 24px 0;border:1px solid #ccc;padding:6px\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/canasanta.ca\/wp-content\/uploads\/2026\/11\/Circuitos-electronicos-%E2%80%94-imagen-de-contexto.jpg?w=800&#038;quality=82&#038;strip=all&#038;ssl=1\" alt=\"Circuitos de una placa electr\u00f3nica en primer plano\" style=\"width:100%;height:auto\"\/><figcaption style=\"font-family:Arial,sans-serif;color:#888;font-size:12px\">Imagen de contexto: circuitos electr\u00f3nicos. Fotograf\u00eda de Jonathan Borba \/ Unsplash.<\/figcaption><\/figure>\n<h2 style=\"margin-top:48px;margin-bottom:22px\">DE LA F\u00cdSICA A LOS CHIPS<\/h2>\n<p style=\"line-height:1.75;margin-bottom:26px\">Una de las aspiraciones de la <em>espintr\u00f3nica<\/em> consiste en aprovechar el esp\u00edn de los electrones, adem\u00e1s de su carga el\u00e9ctrica, para almacenar y procesar datos. Los materiales altermagn\u00e9ticos podr\u00edan contribuir a dispositivos de memoria compactos, componentes de conmutaci\u00f3n y arquitecturas inform\u00e1ticas con menor consumo. Sin embargo, entre demostrar una propiedad en el laboratorio y fabricar millones de chips fiables existe una distancia considerable. Todav\u00eda deben resolverse cuestiones de fabricaci\u00f3n, estabilidad, lectura de se\u00f1ales y compatibilidad con los procesos industriales actuales.<\/p>\n<h2 style=\"margin-top:48px;margin-bottom:22px\">UNA CONFIRMACI\u00d3N, NO UNA TECNOLOG\u00cdA TERMINADA<\/h2>\n<p style=\"line-height:1.75;margin-bottom:26px\">La investigaci\u00f3n no implica que los ordenadores actuales vayan a ser reemplazados inmediatamente ni que el ahorro energ\u00e9tico est\u00e9 ya cuantificado. La relevancia est\u00e1 en establecer una base experimental m\u00e1s firme para una familia de materiales que lleva a\u00f1os atrayendo atenci\u00f3n te\u00f3rica y experimental. El avance tambi\u00e9n ofrece nuevas preguntas: qu\u00e9 compuestos presentan las se\u00f1ales m\u00e1s \u00fatiles, c\u00f3mo se comportan a temperatura ambiente y si pueden integrarse en dispositivos reales sin perder sus ventajas.<\/p>\n<h2 style=\"margin-top:48px;margin-bottom:22px\">EL VALOR DE CAMBIAR UNA CLASIFICACI\u00d3N<\/h2>\n<p style=\"line-height:1.75;margin-bottom:26px\">La historia de la ciencia muestra que una categor\u00eda nueva puede alterar la manera de dise\u00f1ar experimentos. Al identificar caracter\u00edsticas que hab\u00edan quedado ocultas dentro de materiales conocidos, los f\u00edsicos obtienen un lenguaje m\u00e1s preciso para buscar comportamientos inesperados. El caso del MnTe ilustra esa posibilidad: no apareci\u00f3 de la nada, sino que una observaci\u00f3n m\u00e1s fina permiti\u00f3 reconocer una propiedad que la clasificaci\u00f3n anterior no describ\u00eda adecuadamente. El trabajo es un avance en f\u00edsica de materiales, no una promesa comercial ya cumplida.<\/p>\n<h2 style=\"margin-top:48px;margin-bottom:22px\">QU\u00c9 FALTA POR DEMOSTRAR<\/h2>\n<p style=\"line-height:1.75;margin-bottom:26px\">Los pr\u00f3ximos pasos requieren reproducir las mediciones, explorar otros compuestos y relacionar las propiedades microsc\u00f3picas con rendimientos medibles en dispositivos. Tambi\u00e9n ser\u00e1 importante comprobar qu\u00e9 condiciones experimentales favorecen las se\u00f1ales detectadas y cu\u00e1les podr\u00edan limitar su uso. Por ahora, el resultado permite hablar con mayor fundamento de una tercera forma de orden magn\u00e9tico. Su verdadero impacto tecnol\u00f3gico depender\u00e1 de pruebas adicionales, de la ingenier\u00eda de materiales y de a\u00f1os de desarrollo.<\/p>","protected":false},"excerpt":{"rendered":"<p>Un estudio de SLAC aporta pruebas experimentales de altermagnetismo en telururo de manganeso. Sus aplicaciones electr\u00f3nicas siguen en investigaci\u00f3n.<\/p>","protected":false},"author":284226809,"featured_media":7452,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_wpcom_ai_launchpad_first_post":false,"_jetpack_hide_featured_image":false,"_jetpack_featured_image_duplicate_dismissed":0,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[33205457,33205478],"tags":[],"class_list":["post-7454","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-al-dia","category-arqueologia"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.8) - 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