Local Laser Heating Effect on Raman Spectroscopy of β-Co2(OH)3Br

摘要：

　　Raman (4000-95 cm-1) spectra of the recently identified magnetic geometric frustration material-deformed pyrochlore-structure hydroxyl cobalt bromide β-Co2(OH)3Br polycrystalline sample were measured using 10X and 50X microscopic objectives under different laser powers at room temperature.It is found that the obtained Raman bands at these experimental conditions are slightly different from one another.This phenomenon is caused by the so-called local laser heating effect and can help predict the temperature-dependent spectral behavior of β-Co2(OH)3Br around the room temperature.The Raman spectral experiments down to liquid nitrogen temperature (77 K) confirmed this local laser heating effect.

关键词： local laser heating effect Raman spectrum hydroxyl cobalt bromide blueshift

作者: Xiaodong Liu Jing LU Masayoshi Fujihala Dongdong Meng Xingliang Xu Xuguang Zheng Zhengwei Chen Qixin GUO

作者单位: Department of Physics, Faculty of Science and Engineering, Saga University, Saga 840-8502, Japan;Dep Department of Physics, College of Science, Tianjin Polytechnic University, Tianjin 300387, China Department of Physics, Faculty of Science and Engineering, Saga University, Saga 840-8502, Japan Synchrotron Light Application Center & Department of Electrical and Electronic Engineering, Saga Uni

会议类型: 国际会议

会议名称: the 2012 International Conference on Frontiers of Advanced Materials and Engineering Technology (2012年先进材料与工程技术国际会议(FAMET 2012))

会议地点: 厦门

会议语种:英文

页码: 566-569

在线出版日期: 2012-01-04（万方平台首次上网日期，不代表论文的发表时间）