Electric-Pulse-driven Electronic Phase Separation, Insulator-Metal Transition, and Possible Superconductivity in a Mott Insulator

Cristian Vaju; Laurent Cario; Benoit Corraze; Etienne Janod; Vincent Dubost; Tristan Cren; Dimitri Roditchev; Daniel Braithwaite; Olivier Chauvet

doi:10.1002/adma.200702967

Electric-Pulse-driven Electronic Phase Separation, Insulator-Metal Transition, and Possible Superconductivity in a Mott Insulator

Adv Mater. 2008 Jul 17;20(14):2760-5. doi: 10.1002/adma.200702967. Epub 2008 Jun 5.

Authors

Cristian Vaju¹, Laurent Cario, Benoit Corraze, Etienne Janod, Vincent Dubost, Tristan Cren, Dimitri Roditchev, Daniel Braithwaite, Olivier Chauvet

Affiliation

¹ Institut des Matériaux Jean Rouxel (IMN) Université de Nantes, CNRS 2 rue de la Houssinière, BP 32229, 44322 Nantes Cedex 3 (France).

PMID: 25213903
DOI: 10.1002/adma.200702967

Abstract

Experimental evidence of a nonvolatile electric-pulse-induced insulator-to-metal transition and possible superconductivity in the Mott insulator GaTa4 Se8 is reported. Scanning tunneling microscopy experiments show that this unconventional response of the system to short electric pulses arises from a nanometer-scale electronic phase separation generated in the bulk material.

Keywords: Inorganic nanostructures; Organic electronics; Semiconductors; Structure-property relationships.