SPECTROSCOPIC DETERMINATION OF THE BAND OFFSET IN CDTE/CD1-XMNXTE MULTIPLE QUANTUM-WELLS GROWN ON INSB SUBSTRATES

被引：7

作者：

GREGORY, TJ

HILTON, CP

NICHOLLS, JE

HAGSTON, WE

DAVIES, JJ

LUNN, B

ASHENFORD, DE

机构：

[1] UNIV E ANGLIA,SCH PHYS,NORWICH NR4 7TJ,NORFOLK,ENGLAND

[2] UNIV HULL,DEPT ENGN DESIGN & MANUFACTURE,HULL HU6 7RX,N HUMBERSIDE,ENGLAND

来源：

JOURNAL OF CRYSTAL GROWTH | 1990年 / 101卷 / 1-4期

关键词：

D O I：

10.1016/0022-0248(90)91043-P

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The effect of magnetic fields on the photoluminescence from CdTe/Cd1-xMnxTe multiple quantum wells grown by molecular beam epitaxy on InSb has been studied. We have attempted to determine the band offsets by measuring the field-induced shifts in the emission energies for structures with periods greater than 140 Å. Difficulties caused by uncertainties concerning the electron-hole binding energy and the extent of magnetic polaron formation are highlighted. For x ≈ 0.25 we confirm that the structures are of type I and find a valence band offset in the range 30-55 meV (provided that magnetic polarons do not form in the barriers). Preliminary results for small period (40 to 100 Å) structures are also discussed. © 1989.

引用

页码：594 / 598

页数：5

共 9 条

[1] MBE GROWTH OF CDTE AND CD1-XMNXTE LAYERS AND MULTILAYERS ON INSB SUBSTRATES [J].