Impurity vibration modes in II–VI and III–V mixed semiconductors | Zendy

Postnikov Andrei | Zendy; Pagès Olivier | Zendy; Souhabi Jihane | Zendy; Nassour Ayoub | Zendy; Hugel Joseph | Zendy

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Impurity vibration modes in II–VI and III–V mixed semiconductors

Author(s) -

Postnikov Andrei,

Pagès Olivier,

Souhabi Jihane,

Nassour Ayoub,

Hugel Joseph

Publication year - 2009

Publication title -

physica status solidi (a)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.532

H-Index - 104

eISSN - 1862-6319

pISSN - 1862-6300

DOI - 10.1002/pssa.200881217

Subject(s) - impurity , semiconductor , vibration , siesta (computer program) , lattice (music) , normal mode , molecular vibration , lattice vibration , atom (system on chip) , materials science , condensed matter physics , mode (computer interface) , phonon , physics , ab initio quantum chemistry methods , quantum mechanics , engineering , optoelectronics , molecule , computer science , acoustics , embedded system , operating system

The analysis of vibration frequencies in dilute semiconducting alloys is addressed, as part of a more vast paradigm for the description of lattice dynamics in semiconductor alloys within the “1 bond – 2 mode” concept. Specific cases considered are those of Be impurities in ZnSe (system with high elastic contrast; aspects of impurity clustering) and of (Ga,In)As alloys, exhibiting much smaller elastic contrast and almost vanishing value of the mode splitting parameter, Δ . First‐principles calculations of frequencies are done by Siesta method, using 64‐atom supercells. (© 2009 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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