Antilocalization of hole carriers in Pb(1-x)Eu(x)Te alloys in the metallic regime
| Contribuinte(s) |
UNIVERSIDADE DE SÃO PAULO |
|---|---|
| Data(s) |
18/04/2012
18/04/2012
2009
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| Resumo |
Magnetoresistance measurements in p-type Pb(1-x)Eu(x)Te alloys, for x varying from 0% up to 5%, have been used to investigate localization and antilocalization effects. These are attributed to both the spin-orbit scattering and to the large Zeeman splitting present in these alloys due to the large values of the effective Lande g factor. The magnetoresistance curves are analyzed using the model of Fukuyama and Hoshino, which takes into account the spin-orbit and Zeeman scattering mechanisms. The spin-orbit scattering time is found to be independent of the temperature, while the inelastic-scattering time increases with decreasing temperature suggesting the electron-phonon interaction as the main scattering mechanism. CNPq Centre National de la Recherche Scientifique - CNRS/FAPESP CAPES/COFECUB |
| Identificador |
PHYSICAL REVIEW B, v.79, n.8, 2009 1098-0121 http://producao.usp.br/handle/BDPI/16248 10.1103/PhysRevB.79.085309 |
| Idioma(s) |
eng |
| Publicador |
AMER PHYSICAL SOC |
| Relação |
Physical Review B |
| Direitos |
restrictedAccess Copyright AMER PHYSICAL SOC |
| Palavras-Chave | #electron-phonon interactions #europium compounds #g-factor #hole mobility #IV-VI semiconductors #lead compounds #localised states #magnetoresistance #narrow band gap semiconductors #spin-orbit interactions #Zeeman effect #THIN-FILMS #CONDUCTION ELECTRONS #WEAK LOCALIZATION #STRAINED PBTE #SPIN-ORBIT #MAGNETORESISTANCE #MAGNETOTRANSPORT #SCATTERING #ALUMINUM #SYSTEMS #Physics, Condensed Matter |
| Tipo |
article original article publishedVersion |
