The grafeno tricapa, a glass that changes of structure of reversible form
The crystalline structure of a material plays an important paper in the determination of his electronic properties. An international study that has had the participation of the Upper Council of Scientific Investigations
The one of the grafeno tricapa is an only example of a material whose crystalline structure can control by means of electrical fields, on the contrary of what occurs with the conventional glasses, that usually alone recristalizan low changes of pressesure or temperature. In the case of this two-dimensional glass, his state changes of reversible form and controlled by means of changes in his crystalline structure. The electrical field created by a loaded metallic tip is sufficient for reconfigurar the glass as it displaces on him.
“This advance can give place to a new class of electronic devices, since the structural change of this material under an electrical field carries associated a change of metal to insulator”, explains Pablo Saint José, researcher of the Institute of Science of Materials of the CSIC, in Madrid. According to the scientists, the study opens the door to crowd of technological applications that explode the reversible change of state by electrical means of these glasses. In concrete, can facilitate new designs of transistors of grafeno with very low dissipation of power.
