Paramagnetic Cu-doped Bi2Te3 nanoplates
Paramagnetic Cu-doped Bi2Te3 nanoplates
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顺磁性 Cu 掺杂 Bi2Te3 纳米片
DOI:
10.1063/1.4863966
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发表时间:
2014-02
期刊:
影响因子:
--
通讯作者:
Z. G. Chen L. Yang S. Ma L. N. Cheng G. Han
中科院分区:
文献类型:
--
作者:
Z. G. Chen L. Yang S. Ma L. N. Cheng G. Han
Uniform Cu-doped Bi2Te3 hexagonal nanoplates with widths of similar to 200 nm and thicknesses of similar to 20 nm were synthesized using a solvothermal method. According to the structural characterization and compositional analysis, the Cu2+ 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. (C) 2014 AIP Publishing LLC.
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