High-pressure synthesis and characterization of superconducting boron-doped diamond
High-pressure synthesis and characterization of superconducting boron-doped diamond
复制标题
超导掺硼金刚石的高压合成及表征
DOI：
10.1016/j.stam.2006.02.013
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发表时间：
2006
影响因子：
5.5
通讯作者：
J. Thompson
中科院分区：
文献类型：
--
作者：
E. Ekimov;V. Sidorov;A. Rakhmanina;N. N. Mel’nik;R. Sadykov;J. Thompson
在C-H-B体系中，在8 GPa的压力和2000 K以上的温度下制备了掺硼金刚石微晶粉末。在C-B-H体系中，硼的存在降低了金刚石合成的温度-压力参数，与二元C-H体系（萘）相比。在具有硼的系统中用于合成的参数的降低可能是由于在金刚石形成的中间阶段期间形成具有不太完美的晶体结构的石墨。在C-H-B体系中，硼含量为5- 10at%的萘混合物中合成了超导金刚石微晶。在交流磁化率测量中检测到掺硼金刚石粉末在3.5 K以下的超导性。
Microcrystalline powders of boron-doped diamond were produced in the C–H–B system under a pressure of 8 GPa and at a temperature of more than 2000 K. The presence of boron in the C–B–H system was shown to decrease the temperature–pressure parameters for diamond synthesis compared with those for the binary C–H system (naphthalene). A decrease in the parameters for synthesis in the system with boron may be due to the formation of graphite with less perfect crystal structure during an intermediate stage of diamond formation. Superconducting diamond microcrystals are synthesized in the C–H–B system with boron content of about 5–10 at% in a mixture with naphthalene. Superconductivity below 3.5 K in boron-doped diamond powder is detected in AC magnetic susceptibility measurements.
DOI：
10.1007/bf01303701
发表时间：
1986-01-01
期刊：
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER
影响因子：
--
作者：
BEDNORZ, JG;MULLER, KA
通讯作者：
MULLER, KA
影响因子：
3.7
作者：
Ghosh, AK;Tokunaga, M;Tamegai, T
通讯作者：
Tamegai, T