Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Cheng Tingzhu"'
Autor:
Du, Yating1 (AUTHOR), Cheng, Tingzhu1 (AUTHOR), Liu, Chenxuan1 (AUTHOR), Zhu, Tingting1 (AUTHOR), Guo, Chuan1 (AUTHOR), Li, Shen1 (AUTHOR), Rao, Xiangrong1 (AUTHOR) raoyisheng@163.com, Li, Jinpu1 (AUTHOR) raoyisheng@163.com
Publikováno v:
Diagnostics (2075-4418). Jan2023, Vol. 13 Issue 2, p303. 19p.
Publikováno v:
Journal of Physics: Condensed Matter. 3:6433-6437
According to powder X-ray diffraction analyses and electron diffraction for the 132 K Sb-doped Bi-system oxide superconductor it can be found that a new phase exists in this system; the new phase belongs to the monoclinic system with cell dimensions
Autor:
Zhang Yuheng, Wang Xiandong, Xu Chen, Meng Guangyao, Fan Chengao, Wu Zi-Qin, Peng Dingkun, Cheng Tingzhu
Publikováno v:
Solid State Communications. 76:361-364
The structures and compositions of oxide sample Bi2Sr2CaGa0.6Co1.4Oy were studied by means of transmission electron microscope and powder x-ray diffractometer. The results show that there are three kinds of oxides in the mixed sample. (1)dominant per
Publikováno v:
Phase Transitions. 22:43-50
Several new phases containing platinum in Y-Ba-Cu-O system are reported in this paper. When Ba-Y-Cu-O system containing platinum is sintered at 950°C, two hexagonal phases YBa2(Pt, Cu)3O9-δ and Ba4Pt1+x Cu2-x Cu2-x O9-δ (x = 0.1 – 0.9) are found
Autor:
Lu Jiang, Cheng Tingzhu, Zhang Yuheng, Lei Yuntao, Fan Chengao, Yang Li, Chen Zhaojia, Wang Haiqian, Mao Zhiqiang, Zhou Guien
Publikováno v:
Superconductor Science and Technology. 3:87-89
The Tc=140 K superconductor Bi2Sr2Ca2Cu3O10- delta doped with Sb and Pb was characterised by powder X-ray diffraction, electron diffraction and electron probe microanalysis. It was observed in the specimen that there was a new phase Bi3Sb0.8Pb0.2Sr4.
Autor:
Zhang Yuheng, Huang Da-Jin, Ruan Yao-Zhong, Gu Gen-Da, Yao Lian-Zeng, Cheng Tingzhu, Wang Yu-Xia, Cai Wei-Li, Zhou Guien, Yang Pei-Fang
Publikováno v:
Acta Physica Sinica. 40:642
Superconducting single crystals of Bi-Sr-Ca-Cu-O 2212 phase have been sucessfully grown by a directional solidification method. The maximum size of single crystal reached 19+3×mm3. The (001) plane of the crystals is parallel to the growth direction.
Autor:
YANG, LI, FAN, CHENGGAO, LI, FANGHUA, CHENG, TINGZHU, ZHOU, GUIEN, CHEN, ZHAOJIA, MAO, ZHIQIANG, ZHANG, YUHEN
Publikováno v:
Modern Physics Letters B; Mar1990, Vol. 4 Issue 5, p363-367, 5p
Autor:
Wu Yicheng, Zhang Qirui, Qian Yitai, Sun Dunming, Cheng Tingzhu, Chen Zuyao, Zhou Quien, Niu Liwen
Publikováno v:
Journal of Crystal Growth. 94:273-276
During the preparation of Ba-Y-Cu-O superconductors, a new crystal having a super-K 2 NiF 4 structure was found. Single crystals of the new phase Ba x Y 2− x CuO 4 have been obtained. The cell parameters are a = 10.290 A, b = 5.692 A an d c = 13.18
Autor:
Zao Yong, Sun Dunming, Zhou Guien, Cheng Tingzhu, Chen Zuyao, Wu Yicheng, Lin Rong, He Zhenhui, Zhang Qirui, Qian Yitai, Niu Liwen, Xia Jiansheng
Publikováno v:
Journal of Crystal Growth. 94:277-280
A new hexagonal crystal Ba 4 Pt 1+ x Cu 2− x O 9− y was grown from the Ba-Y-Cu-O system in a K 2 CO 3 flux. Weissenberg photographs proved that the sample is a single crystal. Electron diffraction patterns clearly show the hexagonal symmetry. X-r
Publikováno v:
Solid State Communications. 70:631-635
Single phase Ba2CeCu3O7.4 was prepared. EXAFS, X-ray diffraction and plasma spectroscopy measurements were performed. A structure model with the cell parameter: a=6.208 A , b=6.232 A and c=8.759 A is proposed based on these experiments. The lack of s