Raman Spectroscopy for High P-T by laser-heated Diamond Anvil Cell

Yanzhang Ma, Texas Tech University, DMR 0619215

1. Developing a Raman system for laser heated diamond anvil cell.

2. Development of a rotational diamond anvil cell

3. Raman measurements of MoS2.4. Compression of Al4C3 to 33.5 GPa

determined that it is harder than it was thought.

5. Measurement of diamond deformation under pressure.

6. Compression of layered lubricant materials TiS2, MoS2, WS2, MoSe2, WSe2. They are important to joint of a spacecraft.

7. High pressure behavior of nanomaterials ZnO nanowire, Au/Cu film, SiC, and Fe3O4 nano crystalline.

8. High pressure resistivity of semiconductors CdTe, CdSe, and HgS, and melton olivine.

Rotational diamond anvil cell

Deformation of diamond

Compression of Al4C3 Raman measurement

Laser heating Raman system at TTU

Lab staff working with students

High school students

working in the high

pressure lab at TTU

Staff and students working at Brookhaven National Lab.

Staff with graduate and high /elementary schl students in the summer program

1. Design and device ordering of a laser heating system for the Spallation Neutrons At High Pressure, at Oak Ridge National Laboratory.

2. Graduation with degree of 2 PhD students, Emre Selvi and Resul Aksoy.

3. Supporting of 4 PhD students, Hongyang Zhu, Dongbin Hou, Lingyun Guo, and Cheng Ji, and 1 master student, Yingying Luan.

4. Researches use the laboratory by 2 undergraduate students, Russel Knudson and Trevor Hannon.

5. Further training of 2 graduated students, Zhishan Liu and Emre Selvi.

6. Supervision of 2 summer intern students, Boheng Ma (Thomas Wooten High School, Gaithersburg Maryland) and Muchi He (Frenship High School, Wolfforth, Texas).

7. Presentation and training at National Laboratory for Superhard Materials, Jilin University, China.

Raman Spectroscopy for High P-T by laser-heated Diamond Anvil Cell

Yanzhang Ma, Texas Tech University, DMR 0619215

PI visited Natl Lab Superhard Materials, China