Khokhlov, Dmitry and Ryabova, Ludmila and Nicorici, Andrey and Shklover, Valery and Ganichev, Sergey and Danilov, Sergey and Bel'kov, Vasily (2008) Terahertz photoconductivity of Pb1-xSnxTe(In). APPLIED PHYSICS LETTERS, 93 (26): 264103. ISSN 0003-6951,
Full text not available from this repository. (Request a copy)Abstract
We have analyzed photoconductivity in Pb1-xSnxTe(In) under the action of similar to 100 ns long terahertz laser pulses with the wavelength varying from 90 to 280 mu m in the temperature range 4.2-300 K. Strong photoresponse has been observed at all laser wavelengths used. Two types of photoresponse have been detected. Positive persistent photoconductivity, which is observed at T < 10 K is due to photoexcitation of impurity states, whereas negative nonpersistent photoresponse prevailing at higher temperatures T similar to 25 K results from free carrier heating. Specific features of photoconductivity mechanisms are discussed.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | TELLURIDE-BASED SEMICONDUCTORS; carrier mobility; impurity states; indium; IV-VI semiconductors; lead compounds; photoconductivity; photoexcitation; tin compounds |
| Subjects: | 500 Science > 530 Physics |
| Divisions: | Physics > Institute of Experimental and Applied Physics > Professor Ganichev > Group Sergey Ganichev |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 14 Oct 2020 08:18 |
| Last Modified: | 14 Oct 2020 08:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/29918 |
Actions (login required)
 |
View Item |
