Yıl: 2020 Cilt: 44 Sayı: 3 Sayfa Aralığı: 247 - 255 Metin Dili: İngilizce DOI: 10.3906/fiz-1911-14 İndeks Tarihi: 01-09-2020

Local vibrational modes of natural isotopes of substitutional oxygen in CdTe

Öz:
We investigated the localized vibrational modes (LVM) of natural oxygen containing ${}^{16}O,;{}^{17}O$ and ${}^{18}O$isotopes at a substitutional tellurium site in cadmium telluride using infrared absorption spectroscopy at cryogenictemperatures. The main absorption peak observed at 350 cm −1 was formerly attributed to a fundamental LVM mode(ν0) of oxygen at a tellurium site. The relatively weak absorption peaks observed at 331 $cm^{-1}$and 340 $cm^{-1}$are assignedas the same $nu_0$ mode of the ${}^{17}O$ and ${}^{18}O$ isotopes, respectively, based on their relative intensities and spectral positions.The spectral positions were confirmed with theoretical calculations using a linear chain model where the peak positionat 350$cm^{-1}$ was taken as the reference for the ${}^{16}O$ isotope. From a least square analysis of the observed peak positionswe were able to calculate the force constants from perturbation theory. A Lorentzian line shape analysis of each $nu_0$absorption peak, considering the effects of isotopic mass and natural abundance variations of the host Cd atoms, wasalso carried out to further confirm their assignments. Reasonably good line shape fittings were obtained for $nu_0$ modesof all isotopes of oxygen.
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APA Tarhan E, RAMDAS A (2020). Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. , 247 - 255. 10.3906/fiz-1911-14
Chicago Tarhan Enver,RAMDAS Anant K. Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. (2020): 247 - 255. 10.3906/fiz-1911-14
MLA Tarhan Enver,RAMDAS Anant K. Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. , 2020, ss.247 - 255. 10.3906/fiz-1911-14
AMA Tarhan E,RAMDAS A Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. . 2020; 247 - 255. 10.3906/fiz-1911-14
Vancouver Tarhan E,RAMDAS A Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. . 2020; 247 - 255. 10.3906/fiz-1911-14
IEEE Tarhan E,RAMDAS A "Local vibrational modes of natural isotopes of substitutional oxygen in CdTe." , ss.247 - 255, 2020. 10.3906/fiz-1911-14
ISNAD Tarhan, Enver - RAMDAS, Anant K.. "Local vibrational modes of natural isotopes of substitutional oxygen in CdTe". (2020), 247-255. https://doi.org/10.3906/fiz-1911-14
APA Tarhan E, RAMDAS A (2020). Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. Turkish Journal of Physics, 44(3), 247 - 255. 10.3906/fiz-1911-14
Chicago Tarhan Enver,RAMDAS Anant K. Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. Turkish Journal of Physics 44, no.3 (2020): 247 - 255. 10.3906/fiz-1911-14
MLA Tarhan Enver,RAMDAS Anant K. Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. Turkish Journal of Physics, vol.44, no.3, 2020, ss.247 - 255. 10.3906/fiz-1911-14
AMA Tarhan E,RAMDAS A Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. Turkish Journal of Physics. 2020; 44(3): 247 - 255. 10.3906/fiz-1911-14
Vancouver Tarhan E,RAMDAS A Local vibrational modes of natural isotopes of substitutional oxygen in CdTe. Turkish Journal of Physics. 2020; 44(3): 247 - 255. 10.3906/fiz-1911-14
IEEE Tarhan E,RAMDAS A "Local vibrational modes of natural isotopes of substitutional oxygen in CdTe." Turkish Journal of Physics, 44, ss.247 - 255, 2020. 10.3906/fiz-1911-14
ISNAD Tarhan, Enver - RAMDAS, Anant K.. "Local vibrational modes of natural isotopes of substitutional oxygen in CdTe". Turkish Journal of Physics 44/3 (2020), 247-255. https://doi.org/10.3906/fiz-1911-14