Off-centering of Ge atoms in GeBi2Te4 and impact on thermoelectric performance

• Main Authors: Dong, Jinfeng, Hu, Lei, Liu, Jue, Liu, Yukun, Jiang, Yilin, Yu, Zhiling, Tan, Xian Yi, Suwardi, Ady, Zheng, Qiang, Li, Qian, Li, Jing-Feng, Dravid, Vinayak P., Yan, Qingyu, Kanatzidis, Mercouri G.
• Other Authors: School of Materials Science and Engineering
• Format: Article
• Language: English
• Published: 2024
• Subjects: Engineering; Low lattice thermal conductivity; Nneutron pair distribution function
• Online Access: https://hdl.handle.net/10356/176271
• Institution: Nanyang Technological University

The crystal structure and transport properties of GeBi2Te4 are investigated as a layered compound with potential applications as thermoelectric materials. A disordered arrangement of Ge and Bi atoms in a septuple-layer structure is discovered through synchrotron radiation X-ray diffraction and trans...