Paramagnetic Cu-doped Bi2Te3 nanoplates

Chen, Z.-G., Yang, L., Ma, S., Cheng, L., Han, G., Zhang, Z.-d. and Zou, J. (2014) Paramagnetic Cu-doped Bi2Te3 nanoplates. Applied Physics Letters, 104, 053105. (doi: 10.1063/1.4863966)

Abstract

Uniform Cu-doped Bi2Te3 hexagonal nanoplates with widths of ∼200 nm and thicknesses of ∼20 nm were synthesized using a solvothermal method. According to the structural characterization and compositional analysis, the Cu 2+ ions were found to substitute Bi3+ ions in the lattice. High-level Cu doping induces a lattice distortion and decreases the crystal lattice by 1.17% in the a axis and 2.38% in the c axis. A paramagnetic state is observed in these nanoplates from 2 to 295 K, which is a significant difference from their diamagnetic un-doped Bi2Te3.

• Item Type: Articles
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Han, Dr Guang
• Authors: Chen, Z.-G., Yang, L., Ma, S., Cheng, L., Han, G., Zhang, Z.-d., and Zou, J.
• College/School: College of Science and Engineering > School of Chemistry
• Journal Name: Applied Physics Letters
• Publisher: American Institute of Physics
• ISSN: 0003-6951
• ISSN (Online): 1077-3118