Raman Spectroscopic Investigation of H3[Co(CN)6]: An Anharmonicity Study

被引：0

作者：

Mishra, K. K. ^{[1
]}

Salke, Nilesh P. ^{[2
]}

Achary, S. N. ^{[3
]}

Tyagi, A. K. ^{[3
]}

Rao, Rekha ^{[2
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Condensed Matter Phys Div, Kalpakkam 603102, Tamil Nadu, India

[2] Bhabha Atom Res Ctr, Solid State Phys Div, Bombay 400085, Maharashtra, India

[3] Bhabha Atom Res Ctr, Chem Div, Bombay 400085, Maharashtra, India

来源：

DAE SOLID STATE PHYSICS SYMPOSIUM 2015 | 2016年 / 1731卷

关键词：

Raman spectroscopy; Anharmonicity; Negative thermal expansion;

D O I：

10.1063/1.4947973

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

To investigate the anharmonicity of different phonons in the negative thermal expansion material H-3[Co(CN)(6)], temperature dependent Raman spectroscopic studies have been carried out in the temperature range 80-300 K. No discontinuous or slope changes of mode frequencies are observed with temperature implying that H-3[Co(CN)(6)] is stable in the entire temperature range. The temperature dependence of mode frequencies and their linewidths (FWHMs) are analyzed using the anharmonicity models, which indicate that the three-phonon decay process is dominant over the four-phonon process.

引用

页数：3

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