High/low-temperature Raman spectroscopy of Re3N crystals

JIANG Xiaodong; LEI Li; HU Qiwei; GAO Shangpan; TAN Lijie; ZHANG Leilei

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High/low-temperature Raman spectroscopy of Re3N crystals

JIANG Xiaodong #,LEI Li *,HU Qiwei,GAO Shangpan,TAN Lijie,ZHANG Leilei

Institute of Atomic and Molecular Physics, Sichuan University, Chengdu 610065

*Correspondence author

#Submitted by

Subject:

Funding: The National Natural Science Foundation of China （No.21301122）

Opened online:17 July 2015

Accepted by: none

Citation: JIANG Xiaodong,LEI Li,HU Qiwei.High/low-temperature Raman spectroscopy of Re3N crystals[OL]. [17 July 2015] http://en.paper.edu.cn/en_releasepaper/content/4648829

Well-crystallized plate-like Re3N crystals were synthesized through a high-pressure solid-state metathesis (HPSSM) reaction. The vibrational properties of Re3N crystals were studied by the temperature dependence of Raman spectroscopy between 77 K and 873K. With the temperature increasing, the red-shift and broadening of Raman bands of Re3N could be well fitted using a model involving three- and four-phonon decay processes. Our fitting results indicated that the three-phonon decay processes were dominant over the four-phonon ones at high temperatures.

Keywords:Transition-metal nitrides; Optical properties; High/low-temperature; Raman spectroscopy

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