{"ok":true,"nota":{"id":"5b79207593c0dc81","slug":"en-grafeno-perforado-los-electrones-de-los-bordes-forman-niveles-de-en-5b7920","titulo":"En grafeno perforado, los electrones de los bordes forman niveles de energía ordenados alrededor de cada aguje","resumen":"Los autores midieron la resistencia eléctrica de muestras de grafeno perforadas con iones y encontraron una serie regular de picos a bajas temperaturas. Atribuyen esos picos a electrones que giran alrededor de cada nanoagujero, en coincidencia con la teoría.","fuente":"hal","fuenteNombre":"HAL · Ciencia abierta","color":"#b06000","autor":"Latyshev, Yu. I., Orlov, A.P., Frolov, A.V.","url":"https://hal.science/hal-00997942","imagen":"/hoy/portada/5b79207593c0dc81","tema":"ciencia","subtemas":["grafeno","física de materiales","nanotecnología","electrónica"],"entidades":["HAL","grafeno"],"formato":"dato","entretenimiento":false,"pubTs":"2026-10-20T00:00:00.000Z","indexTs":"2026-10-20T12:23:04.287Z","hash":"4aa31099c6db80d7cb082c5b68da73c9850614cc2a514cd0857741897bdffbfd","tsa":{"time":"Oct 20 12:25:04 2026 GMT","provider":"freetsa.org","sobre":"sello"},"stats":{"views":0,"likes":0,"clicks":0,"dwell":0},"tipo":"normal","registro":"hallazgo","porQueImporta":"El grafeno es una capa de carbono de un solo átomo de espesor que conduce la electricidad muy bien, y perforarlo a escala nanométrica permite diseñar cómo se comportan sus electrones. Este estudio confirma experimentalmente un efecto que hasta ahora era sobre todo teórico. Para alguien de acá, esto no cambia nada en el corto plazo, pero abre la puerta a sensores y componentes electrónicos más pequeños y precisos. Son resultados de laboratorio, sin aplicación comercial todavía.","quienFirma":"HAL (ciencia abierta, institución no especificada en la fuente)","confianza":"revisado","consulta":null},"sello":{"hash":"4aa31099c6db80d7cb082c5b68da73c9850614cc2a514cd0857741897bdffbfd","sello":"f36d0c0efec662009dd0cab15534652f8be4fd08eef197aca01b60bf028f820f","beacon":{"drand":{"cadena":"8990e7a9aaed2ffed73dbd7092123d6f289930540d7651336225dc172e51b2ce","ronda":6568935,"aleatorio":"4734b03bae87f5a8dd2fe7cde945db644eaa817640c2a2ce6af2831569875a81","tiempo":"2026-10-20T12:24:30.000Z"},"nist":{"cadena":2,"pulso":1991673,"salida":"DDCB5F82F0645C34A3F433D4BA13998960F2189EC6A88985E18ECDB7546BA1EA2A730E108A48EF2143BB4B411A740F67E00D7CF60847D50282208FC623638993","tiempo":"2026-10-20T12:24:00.000Z"},"noAntes":"2026-10-20T12:24:30.000Z"},"verificacion":{"drand":true,"nist":true},"tsa":{"time":"Oct 20 12:25:04 2026 GMT","provider":"freetsa.org","sobre":"sello"},"original":{"titulo":"Orbital quantization in a system of edge Dirac fermions in nanoperforated graphene","descripcion":"The dependence of the electric resistance R of nanoperforated graphene samples on the position of the Fermi level E (F), which is varied by the gate voltage V (g), has been studied. Nanoperforation has been performed by irradiating graphene samples on a Si/SiO2 substrate by heavy (xenon) or light (helium) ions. A series of regular peaks have been revealed on the R(V (g)) dependence at low temperatures in zero magnetic field. These peaks are attributed to the passage of E (F) through an equidistant set of levels formed by orbitally quantized states of edge Dirac fermions rotating around each nanohole. The results are in agreement with the theory of edge states for massless Dirac fermions.","pubDate":"2026-10-20","url":"https://hal.science/hal-00997942"},"indexado":"2026-10-20T12:23:04.287Z"}}