Effects of interface disorder on transmission probability in magnetic multilayer

Autor:	Julian Velev, William H. Butler
Rok vydání:	2004
Předmět:	Electron mean free path Materials science Condensed matter physics Series (mathematics) Conductance Giant magnetoresistance Condensed Matter Physics Electronic Optical and Magnetic Materials law.invention Transmission (telecommunications) law Ballistic conduction Specular reflection Resistor
Zdroj:	Physical Review B. 69
ISSN:	1550-235X 1098-0121
DOI:	10.1103/physrevb.69.024404
Popis:	We present a study of conductance through disordered Fe-Cr[100] and Co-Cu[100] interfaces within a realistic tight-binding model. In our model, the specular and diffuse parts of the conductance are treated on an equal footing. We observe a substantial increase in conductance due to disorder in the channels that are strongly reflected by pure interfaces. We also show how this phenomenon affects the giant magnetoresistance. In addition, we find that the series resistor model may significantly overestimate the resistance if the thickness of the disordered layer is less than several times the electron mean free path.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::6a6ceacd65a29a5fbef51d4c0421c183 https://doi.org/10.1103/physrevb.69.024404 Zobrazit plný text záznamu