SCANNING TUNNELING MICROSCOPY AND TUNNELING SPECTROSCOPY OF N-TYPE IRON PYRITE (N-FES2) SINGLE-CRYSTALS

被引：37

作者：

FAN, FR ^{[1
]}

BARD, AJ ^{[1
]}

机构：

[1] UNIV TEXAS,DEPT CHEM,AUSTIN,TX 78712

来源：

JOURNAL OF PHYSICAL CHEMISTRY | 1991年 / 95卷 / 05期

关键词：

D O I：

10.1021/j100158a016

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The (001) surface of a highly doped (> 2.7 x 10(18) cm-3) n-type FeS2 crystal was imaged by the constant current mode in air with a scanning tunneling microscope (STM). Current (i) images at different bias voltages (V) were also obtained. Tunneling spectroscopy (TS) was carried out, and i vs V and di/dV vs V curves obtained with the tip held above the FeS2 surface were interpreted in terms of the band locations and a localized state within the band gap. The effect of band bending in the semiconductor on the interpretation of the TS results is also considered.

引用

页码：1969 / 1976

页数：8

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