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Effective coordination concept applied for phase change compounds
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10.1063/1.3533422
/content/aip/journal/jap/109/2/10.1063/1.3533422
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/2/10.1063/1.3533422

Figures

Image of FIG. 1.
FIG. 1.

Atomic structure of the GeTe and compounds employing a conventional hexagonal unit cell representation (dashed lines). The Ge, Sb, and Te atoms are indicated.

Image of FIG. 2.
FIG. 2.

Atomic structure of the GST compounds in the stable crystalline phase for the (a), (b), and (c) compositions, and employing a hexagonal unit cell representation (dashed lines). The Ge, Sb, and Te atoms are indicated.

Image of FIG. 3.
FIG. 3.

Atomic structure of the GST compounds in the metastable crystalline phase for the (a), (b), and (c) compositions, employing a conventional hexagonal unit cell representation (dashed lines). The Ge, Sb, and Te atoms are indicated.

Image of FIG. 4.
FIG. 4.

Structure of the GST compounds in the amorphous phase for the (a), (b), and (c) compositions. The Ge, Sb, and Te atoms are indicated.

Tables

Generic image for table
Table I.

Standard CNs and ECNs for sc, fcc, bcc, and hcp lattices.

Generic image for table
Table II.

Lattice parameters of the GeTe, GST, and compounds in the stable (rhombohedral or hexagonal lattices) and metastable (RS lattices) phases. is given per unit cell, while is given per number of building blocks in the hexagonal cell.

Generic image for table
Table III.

ECNs for the GeTe, , and GST compounds in the crystalline (stable and metastable) and amorphous phases. For the atomic species (Ge, Sb, Te) with two distinct atomic environments in the crystalline phases, two ECN values are reported in the first and second lines for each composition. The numbers in parentheses indicate the percentage of sites with the respective ECN.

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/content/aip/journal/jap/109/2/10.1063/1.3533422
2011-01-18
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Effective coordination concept applied for phase change (GeTe)m(Sb2Te3)n compounds
http://aip.metastore.ingenta.com/content/aip/journal/jap/109/2/10.1063/1.3533422
10.1063/1.3533422
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