Local structure of nitrogen in N-doped amorphous and crystalline GeTe

Alexander V. Kolobov; Paul Fons; Bérangre Hyot; Bernard André; Junji Tominaga; Yusuke Tamenori; Hideki Yoshikawa; Keisuke Kobayashi

doi:10.1063/1.3683522

Local structure of nitrogen in N-doped amorphous and crystalline GeTe

Alexander V. Kolobov, Paul Fons, Bérangre Hyot, Bernard André, Junji Tominaga, Yusuke Tamenori, Hideki Yoshikawa, Keisuke Kobayashi

Research output: Contribution to journal › Article › peer-review

27 Citations (Scopus)

Abstract

The local structure around nitrogen species in N-doped GeTe has been investigated using (soft) x-ray absorption spectroscopy and high-resolution x-ray photoemission spectroscopy. The obtained results demonstrate that while in as-deposited amorphous GeTe nitrogen is predominantly bonded to Ge atoms, upon crystallization the majority of nitrogen forms N ₂ molecules that are likely to be located in the grain boundaries, with only a small fraction of nitrogen species remaining bonded to Ge.

Original language	English
Article number	061910
Journal	Applied Physics Letters
Volume	100
Issue number	6
DOIs	https://doi.org/10.1063/1.3683522
Publication status	Published - 2012 Feb 6
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3683522

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AU - Kolobov, Alexander V.

AU - Fons, Paul

AU - Hyot, Bérangre

AU - André, Bernard

AU - Tominaga, Junji

AU - Tamenori, Yusuke

AU - Yoshikawa, Hideki

AU - Kobayashi, Keisuke

PY - 2012/2/6

Y1 - 2012/2/6

N2 - The local structure around nitrogen species in N-doped GeTe has been investigated using (soft) x-ray absorption spectroscopy and high-resolution x-ray photoemission spectroscopy. The obtained results demonstrate that while in as-deposited amorphous GeTe nitrogen is predominantly bonded to Ge atoms, upon crystallization the majority of nitrogen forms N 2 molecules that are likely to be located in the grain boundaries, with only a small fraction of nitrogen species remaining bonded to Ge.

AB - The local structure around nitrogen species in N-doped GeTe has been investigated using (soft) x-ray absorption spectroscopy and high-resolution x-ray photoemission spectroscopy. The obtained results demonstrate that while in as-deposited amorphous GeTe nitrogen is predominantly bonded to Ge atoms, upon crystallization the majority of nitrogen forms N 2 molecules that are likely to be located in the grain boundaries, with only a small fraction of nitrogen species remaining bonded to Ge.

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Local structure of nitrogen in N-doped amorphous and crystalline GeTe

Abstract

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