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Respuesta al comentario sobre "La observación de la transición de Wigner-Huntington al hidrógeno metálico"
1Lyman Laboratory of Physics, Harvard University, Cambridge, MA 02138, USA. silvera@physics.harvard.edu.
Science (New York, N.Y.)
|August 26, 2017
Resumen
Los investigadores lograron las presiones estáticas más altas en el hidrógeno, alcanzando los 495 gigapascales. Este estudio responde a las críticas con respecto a la transición de Wigner-Huntington al hidrógeno metálico (MH).
Área de la Ciencia:
- Física de altas presiones
- Ciencias de los materiales
- Física de la materia condensada
Sus antecedentes:
- El hidrógeno metálico (MH) es un estado teóricamente predicho del hidrógeno bajo presión extrema.
- Los intentos anteriores de sintetizar MH se han visto obstaculizados por limitaciones experimentales, como el fallo de la célula de yunque de diamante.
- La transición de Wigner-Huntington describe el cambio teórico del hidrógeno a un estado metálico.
Objetivo del estudio:
- Abordar y refutar las observaciones negativas sobre la transición de Wigner-Huntington al hidrógeno metálico.
- Presentar nuevos datos experimentales que apoyen el logro del hidrógeno metálico.
- Detallar la metodología utilizada para superar los desafíos experimentales anteriores.
Principales métodos:
- Utilizando células de yunque de diamante para generar presiones estáticas ultra altas en el hidrógeno.
- Alcanzando presiones estáticas récord de 495 gigapascales.
- Realizar experimentos a bajas temperaturas para estabilizar la fase de hidrógeno metálico.
Principales resultados:
- Produjo con éxito presiones estáticas de 495 gigapascales, la más alta jamás alcanzada en hidrógeno.
- Superó los problemas de fallo del diamante que afectaron a los experimentos anteriores.
- Proporcionó pruebas y una respuesta a las críticas sobre la transición Wigner-Huntington.
Conclusiones:
- Las condiciones experimentales alcanzadas proporcionan un fuerte apoyo para la síntesis de hidrógeno metálico.
- La metodología empleada representa un avance significativo en la investigación de alta presión.
- Se necesitan más investigaciones para caracterizar completamente las propiedades del hidrógeno metálico.
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