Video Experimental Relacionado
Updated: Jul 11, 2026
04:51
Comparison of Two Different Synthesis Methods of Single Crystals of Superconducting Uranium Ditelluride
Published on: July 8, 2021
Resumen
El metal sintético americio exhibe superconductividad a 0,79 K en su fase doble-hexagonal-empaquetado cerrado. Este hallazgo es notable ya que el americio es un elemento artificial, y la superconductividad es rara entre tales materiales.
Área de la Ciencia:
- Física de la materia condensada Física de la materia condensada
- Ciencia de los materiales Ciencia de los materiales.
- La superconductividad es la superconductividad.
Sus antecedentes:
- La superconductividad es un fenómeno en el que los materiales exhiben resistencia eléctrica cero por debajo de una temperatura crítica.
- En general, no se espera que los elementos artificiales exhiban superconductividad.
- El americio es un elemento radiactivo transuránico sintético.
Objetivo del estudio:
- Para investigar las propiedades superconductoras del metal americio.
- Para determinar las temperaturas críticas para la superconductividad en diferentes fases del americio.
Principales métodos:
- Mediciones experimentales de la resistencia eléctrica en función de la temperatura.
- Síntesis y caracterización del americio en diferentes fases cristalográficas (doble-hexagonal-envasado y cubico centrado en la cara).
Principales resultados:
- La superconductividad se observó en el americio a temperaturas de hasta 0,79 K para la fase doble-hexagonal-empaquetada de cerca.
- La evidencia sugiere una temperatura de transición ligeramente más alta para la fase cara-centrada-cúbica.
Conclusiones:
- El americio es un nuevo material superconductor, particularmente sorprendente dada su naturaleza sintética.
- El descubrimiento abre nuevas vías para explorar la superconductividad en elementos artificiales.
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