Identification of Te alloys with suitable phase change characteristics

Identification of Te alloys with suitable phase change characteristics

At present, the discovery and development of phase change materials is mainly based upon empirical strategies and trial and error approaches. Here, we present a structural criterion that needs to be met to enable the mandatory fast recrystallization with sufficient optical contrast that characterize...

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Veröffentlicht in:Applied physics letters 2003-09, Vol.83 (13), p.2572-2574
Hauptverfasser: Detemple, Ralf, Wamwangi, Daniel, Wuttig, Matthias, Bihlmayer, Gustav
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container_end_page 2574
container_issue 13
container_start_page 2572
container_title Applied physics letters
container_volume 83
creator Detemple, Ralf
Wamwangi, Daniel
Wuttig, Matthias
Bihlmayer, Gustav
description At present, the discovery and development of phase change materials is mainly based upon empirical strategies and trial and error approaches. Here, we present a structural criterion that needs to be met to enable the mandatory fast recrystallization with sufficient optical contrast that characterizes suitable phase change materials. Comparing the behavior of AgInTe2 and AgSbTe2 films it is demonstrated that only the AgSbTe2 films, which show a cubic coordination, have sufficient density contrast, and hence, also optical contrast to allow phase change recording.
doi_str_mv 10.1063/1.1608482
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title Identification of Te alloys with suitable phase change characteristics
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