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Comentario sobre la observación de la transición de Wigner-Huntington al hidrógeno metálico
Alexander F Goncharov1,2, Viktor V Struzhkin3
1Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei, China. agoncharov@carnegiescience.edu vstruzhkin@carnegiescience.edu.
Science (New York, N.Y.)
|August 26, 2017
Resumen
Este estudio desafía las afirmaciones de hidrógeno metálico observado a presiones extremas. Los autores argumentan que los datos presentados son insuficientes para apoyar el comportamiento metálico o confirmar el hidrógeno
Área de la Ciencia:
- Física de la materia condensada
- Ciencia de alta presión
- Ciencias de los materiales
Sus antecedentes:
- La transición de Wigner-Huntington propone la formación de hidrógeno metálico a presiones extremas.
- Investigaciones previas reportaron haber observado esta transición a 495 gigapascales.
- Se afirmó que esta observación ocurría a temperaturas bajas específicas (5,5 y 83 Kelvin).
Objetivo del estudio:
- Evaluar críticamente las pruebas de hidrógeno metálico reportadas por Dias y Silvera.
- Evaluar la validez de la afirmación de transición de Wigner-Huntington en las condiciones comunicadas.
Principales métodos:
- Análisis de los datos presentados en el artículo de investigación de Dias y Silvera.
- Examen de las condiciones experimentales y observaciones comunicadas.
- Evaluación de la evidencia de la presencia de hidrógeno en el aparato de alta presión.
Principales resultados:
- Los datos presentados son insuficientes para apoyar la afirmación del comportamiento metálico en el hidrógeno.
- Se encontró que los datos experimentales eran escasos y contradictorios.
- La presencia de hidrógeno dentro de la cavidad de alta presión no fue probada de manera concluyente.
Conclusiones:
- La observación reportada de la transición de Wigner-Huntington al hidrógeno metálico no está sustentada por los datos proporcionados.
- Se requieren pruebas experimentales más rigurosas para confirmar la formación de hidrógeno metálico a altas presiones.
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