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Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
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Aplicaciones de los modernos productos ferroeléctricos
1Centre for Ferroics, Earth Sciences Department, University of Cambridge, Cambridge CB2 3EQ, UK. jsco99@esc.cam.ac.uk
Science (New York, N.Y.)
|February 17, 2007
Resumen
La ferroelectricidad, una vez un concepto de la física clásica, ahora se explica por la mecánica cuántica. Esto permite dispositivos semiconductores avanzados como memoria, sensores y fuentes de microondas.
Área de la Ciencia:
- Física del estado sólido Física del estado sólido
- La mecánica cuántica es la mecánica cuántica.
- Ciencia de los materiales Ciencia de los materiales.
Sus antecedentes:
- La ferroelectricidad fue estudiada tradicionalmente dentro de la física clásica.
- Dispositivos ferroeléctricos a nanoescala de película delgada emergentes integrados con chips Si.
- Avances en las aplicaciones de la industria de semiconductores.
Objetivo del estudio:
- Describa la ferroelectricidad utilizando la mecánica cuántica y la teoría de ab initio.
- Destacar los recientes avances y aplicaciones de los materiales ferroeléctricos.
- Mostrar el potencial de los dispositivos ferroeléctricos en varios campos tecnológicos.
Principales métodos:
- Aplicación de la teoría de la mecánica cuántica ab initio a la ferroelectricidad.
- Desarrollo de estructuras de dispositivos de nanoescala de película delgada.
- Fabricación de matrices ferroeléctricas en nanoestructuras.
Principales resultados:
- Se han demostrado matrices ferroeléctricas de terabits por pulgada cuadrada.
- Se obtuvieron nanorredes ferroeléctricos de 5 nanómetros de diámetro.
- Emisión de electrones reportada para dispositivos de microondas de alta potencia.
Conclusiones:
- La teoría cuántica proporciona un marco sólido para la ferroelectricidad.
- Los nanodispositivos ferroeléctricos ofrecen un potencial significativo en aplicaciones de memoria, detección y energía.
- La emisión de electrones de los productos ferroeléctricos permite nuevas fuentes compactas.
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