MODULATED ELECTRIC-CONDUCTIVITY IN FE3O4/NIO SUPERLATTICES

被引：9

作者：

CHERN, G ^{[1
]}

BERRY, SD ^{[1
]}

LIND, DM ^{[1
]}

MATHIAS, H ^{[1
]}

TESTARDI, LR ^{[1
]}

机构：

[1] FLORIDA STATE UNIV,CTR MAT RES & TECHNOL,TALLAHASSEE,FL 32306

来源：

APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 22期

关键词：

D O I：

10.1063/1.104860

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

High quality Fe3O4/NiO multilayered structures with nominal artificial periodicity 17 angstrom/17 angstrom and 34 angstrom/34 angstrom have been made by molecular beam epitaxy. The conductivity of the modulated structures is orders of magnitude higher for current parallel to the layers than for the transverse direction, reaching a ratio of 10(6)-a value which is comparable with the largest known anisotropy for any material. This strong anisotropy shows that a like modulation of electrical conductivity has been achieved over distances as small as tens of angstrom and also suggests the possibility of voltage controlled superlattice phenomena.

引用

页码：2512 / 2513

页数：2