Award Abstract #0619215
MRI: Development of an In Situ High-Pressure High-Temperature Raman Scattering System: Research and Education

NSF Org:	DMR Division of Materials Research
Initial Amendment Date:	August 23, 2006
Latest Amendment Date:	August 23, 2006
Award Number:	0619215
Award Instrument:	Standard Grant
Program Manager:	Charles E. Bouldin DMR Division of Materials Research MPS Directorate for Mathematical & Physical Sciences
Start Date:	January 1, 2007
Expires:	December 31, 2009 (Estimated)
Awarded Amount to Date:	$433872
Investigator(s):	Yanzhang Ma y.ma@ttu.edu (Principal Investigator) Jharna Chaudhuri (Co-Principal Investigator) Ming-Chien Chyu (Co-Principal Investigator) Mark Holtz (Co-Principal Investigator) Guigen Li (Co-Principal Investigator)
Sponsor:	Texas Tech University 203 Holden Hall Lubbock, TX 79409 806/742-3884
NSF Program(s):	MAJOR RESEARCH INSTRUMENTATION
Field Application(s):	0106000 Materials Research
Program Reference Code(s):	AMPP, 9161
Program Element Code(s):	1189

ABSTRACT

Technical Abstract

Texas Tech University will develop an in situ high-pressure, high-temperature Raman scattering system for research and education. The system will have the following technical features: Raman scattering measurement in situ under high pressure and high temperature, high pressure capability to megabar, high temperature laser heating to thousands of degrees, computerized temperature and sample platform control. The state-of-the-art microscope will be used for research of a broad range of problems related to novel materials, including physics and chemistry of elemental molecules and diatomic molecular solids, phonons and phonon decay in GaN and AlN, high P-T behavior of the fullerene and inorganic fullerene cluster, single crystalline bulk ScN crystals and alloy, high P-T phase transition and super hard material synthesis, biocompatibility of orthopedic materials, chemical biocompatibility of hydrophobic and hydrophilic polymers for intraocular and intrastromal implants, design and optimization of catalysts to achieve higher catalytic outcomes for organic reactions. The microscope will also be used for an extensive set of outreach and educational programs. The establishment of this system will foster further scientific collaborations worldwide in our studies to address broad fundamental issues of minerals, semiconductors, catalysts, and biological materials. The proposal brings together a diverse group of researchers. The system will be used for training of postdoctoral researchers and students at all levels through research and directly related courses. It will also be used in an outreach program targeting the local community in an effort to motivate K-12 students to pursue careers in science and engineering.

Lay Abstract

The in situ high-pressure high-temperature Raman scattering system plays a very special role in high pressure science and technology. Much of the current scientific and technical breakthrough relies on the understanding of the novel high-pressure and high-temperature properties of materials. The proposed in situ high-pressure, high-temperature Raman scattering system provides an unprecedented capability to the local community in an effort to interest K-12 students in science and engineering careers of high-pressure research and thus will lead to a new method to discover new properties and new applications of materials. The new system to be developed at Texas Tech University will greatly enhance an existing program in the area of high pressure science and technologies. The development and establishment of the system will also contribute greatly to outreach and educational programs, especially through the existing Texas Tech University outreach program emphasizing targeting the local community in an effort to motivate K-12 students to pursue careers in science and engineering. The system will also be available to scientists worldwide to facilitate research collaboration in areas such as high-performance computer chips, micro-machines, high-efficiency catalysts, and better understanding of human body. The technology will also be used to enhance the capabilities of synchrotron facilities in national laboratories.

PUBLICATIONS PRODUCED AS A RESULT OF THIS RESEARCH

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1. Chunyuan He, Chunxiao Gao, Yanzhang Ma, Bingguo Liu, Ming Li, Xiaowei Huang, Aimin Hao, Cuiling Yu, Dongmei Zhang, Hongwu Liu and Guangtian Zou.  "Electrical property and phase transition of CdSe under high pressure,"  J. Phys. Chem. Solids,  v.69,  2008,  p. 2227.

4) Dongmei Zhang, Chunxiao Gao, Yanzhang Ma, Chunyuan He, Xiaowei Huang, Aimin Hao, Cuiling Yu, Yanchun Li, Jing Liu, Gang Peng, Dongmei Li, Hongwu Liu and Guangtian Zou.  "Electrical conductivity measurements of â-boron under high pressure and temperature,"  J. Phys.: Condens. Matter,  v.19,  2007,  p. 425216.

9. Xiaowei Huang, Chunxiao Gao, Yonghao Han, Ming Li, Chunyuan He, Aimin Hao, Dongmei Zhang, Cuiling Yu, Guangtian Zou, and Yanzhang Ma.  "Finite element analysis of resistivity measurement with van der Pauw,"  Appl. Phys. Lett.,  v.90,  2007,  p. 242102.

Aimin Hao, Chunxiao Gao, Ming Li, Chunyuan He, Xiaowei Huang, Guangtian Zou, Yongjun Tian, and Yanzhang Ma.  "Conductivity of AgI under high pressure,"  J. Appl. Phys.,  v.101,  2007,  p. 053701.

Aimin Hao, Chunxiao Gao,Ming Li Chunyuan He , Xiaowei Huang, Dongmei Zhang, Cuiling Yu, Hongwu Liu, Yanzhang Ma, Yongjun Tian, and Guangtian Zou.  "A study of the electrical properties of HgS under high pressure,"  J. Phys.: Condens. Matter,  v.19,  2007,  p. 425222.

Chunyuan He, Chunxiao Gao, Yanzhang Ma, Ming Li, Aimin Hao, Xiaowei Huang, Bingguo Liu, Dongmei Zhang, Cuiling Yu, Guangtian Zou, Yanchun Li, Hui Li, Xiaodong Li, and Jing Liu.  "In situ electrical impedance spectroscopy under high pressure on diamond anvil cell,"  Appl. Phys. Lett.,  v.91,  2007,  p. 092124.

Chunyuan He, C.X. Gao, B.G. Liu, M. Li, X.W. Huang, A.M. Hao, C.L. Yu, D.M. Zhang, Y. Wang, H.W. Liu, Y.Z. Ma, and G.T. Zou.  "Electrical properties and phase transition of CdTe under high pressure,"  J. Phys.: Condens. Matter,  v.19,  2007,  p. 425223.

Emre Selvi, Resul Aksoy, Russell Knudson, Yanzhang Ma.  "High-pressure X-ray diffraction study of tungsten diselenide,"  J. Phys. Chem. Solids,  v.69,  2008,  p. 2311.

Ming Li , Chun-Xiao Gao , Yanzhang Ma , Duojun Wang , Yan-Chun Li , Jin Liu.  "In situ electrical conductivity measurement of high-pressure molten (Mg0.875, Fe0.125)2SiO4,"  Appl. Phys. Lett.,  v.90,  2007,  p. 113507.

Ming Li, Chunxiao Gao, Gang Peng, Chunyuan He, Aimin Hao, Xiaowei Huang, Dongmei Zhang, Cuiling Yu, and Yanzhang Ma.  "Thickness measurement of sample in diamond anvil cell,"  Rev. Sci. Instrum.,  v.78,  2007,  p. 075106.

Ming Li, Chunxiao Gao, Yanzhang Ma, Duojun Wang, Yanchun Li and Jing Liu.  "In situ electrical conductivity measurement of high-pressure molten (Mg0.875,Fe0.125)2SiO4,"  Appl. Phys. Lett.,  v.90,  2007,  p. 113507.

Ming Li, Chunxiao Gao, Yanzhang Ma, He Chunyuan, Hao Aimin, Zhang Dongmei, Li Yanchun, Liu Jing, Wang Duojun.  "Resistivity Measurement of Molten Olivine in a Laser-Heated Diamond Anvil Cell,,"  CHIN. PHYS. LETT.,  v.24,  2007,  p. 1010.

R. Aksoy, E. Selvi, Y. Ma.  "X-ray diffraction study of molybdenum diselenide to 35.9 GPa,"  J. Phys. Chem. Solids,  v.69,  2008,  p. 2138.

Y. Ma, and R. Aksoy.  "Compression of CdCu3Ti4O12 perovskite to 55 GPa,"  Solid State Communications,  v.142,  2007,  p. 376.

Yanzhang Ma, Qiliang Cui, Hailong Shen, and Zhaoming He.  "X-ray diffraction study of nanocrystalline tungsten nitride and tungsten,"  J. Appl. Phys.,  v.102,  2007,  p. 013525.


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