The mechanism revealed for the 2DEG

The mechanism revealed for the 2DEG formation

Ruchi Tomar et. al. studied the origin of the conductivity at the interface of two insulating perovskite oxides which is a matter of intensive studies.The conductivity generated at the interface of insulating LaVO3(LVO) and SrTiO3 (STO) is explained in terms of polar catastrophe in the paper "Conducting LaVO_3/SrTiO_3 interface: Is cationic stoichiometry mandatory?"  Here, the authors grown LVO films on (001) TiO2terminated STO substrate employing pulsed laser deposition technique and demonstrate a transition from conducting to insulating interface by changing the Lastoichiometry by only 1%, whereby such transition takes place for Ladeficient films. The effect of cation (non) stoichiometry of LVO film on both carrier density and mobility is studied and compared with previously reported LaAlO3–STO interface.                                                                                       
Click the empty space at the right for more details: https://doi.org/10.1002/admi.201900941
The mechanism revealed for the 2DEG