Control method of the heterojunction device

摘要

PROBLEM TO BE SOLVED: To provide a hetero-junction element which can appropriately control the characteristic of an element using hetero junction, a hetero-junction element module, and a method for controlling the hetero-junction elemnet.;SOLUTION: The hetero-junction element 1A having an oxide hetero-junction structure is provided with an n-type Ti oxide substrate (e.g. Nb:SrTiO₃ substrate) 10 as a first oxide crystal made of a transition metal oxide with doped electrons, and p-type Mn oxide thin films (e.g. La_1-xSr_xMnO_3-δ thin film ) 21-23 as a second oxide crystal made of a transition metal oxide with doped holes. A magnetic field is applied to the hetero-structure in a specified direction to control the thickness of a depletion layer on the hetero junction surface.;COPYRIGHT: (C)2006,JPO&NCIPI