DETERMINATION OF THE ENERGY-GAP FOR CHARGED EXCITATIONS IN INSULATING LA2CUO4

被引：44

作者：

THIO, T ^{[1
]}

BIRGENEAU, RJ ^{[1
]}

CASSANHO, A ^{[1
]}

KASTNER, MA ^{[1
]}

机构：

[1] MIT,DEPT PHYS,CAMBRIDGE,MA 02139

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 16期

关键词：

D O I：

10.1103/PhysRevB.42.10800

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Measurements are reported of the photoconductivity (PO) in reduced, undoped, single-crystal La2CuO4. The spectral dependence of the PC shows a threshold at 2.00.1 eV, corresponding to the minimum energy for the creation of charged excitations. Transient measurements indicate that the PC is surprisingly persistent: the average recombination time is longer than 10 s at room teperature. © 1990 The American Physical Society.

引用

页码：10800 / 10803

页数：4

共 28 条

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