Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Zheng Zhao-bo"'
Autor:
Zheng Zhao Bo
Publikováno v:
Physical Review B. 42:8923-8927
This paper presents a study of ac-conductivity fluctuations for a finite chain of 500 atoms with 10% impurity at zero temperature and low frequency. The average ac conductivity \ensuremath{\sigma}\ifmmode\bar\else\textasciimacron\fi{}(\ensuremath{\El
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5f44f30306eeedd84a9563d87afe499e
https://doi.org/10.1103/physrevb.42.8923
https://doi.org/10.1103/physrevb.42.8923
Autor:
Zheng Zhao-bo, Zhu Kai
Publikováno v:
Journal of Physics C: Solid State Physics. 19:L695-L698
Numerical studies on the one-dimensional lattice with incommensurate potentials En=1.9(cos(0.7n)+1/3cos(1.4n)) are performed. Fine structures of electronic density of states are shown. Mobility edges with precise positions are found and the nature of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9a0a067fc253480cb3cb8c8f6dcb0ec9
https://doi.org/10.1088/0022-3719/19/30/002
https://doi.org/10.1088/0022-3719/19/30/002
Study of amorphography by using fuzzy symmetric group and basic structural characteristic parameters
Publikováno v:
Journal of Non-Crystalline Solids. :105-108
We have calculated the average characteristic functions of fuzzy symmetric group which describes the short range order of amorphous solids, and discussed the Basic Structural Characteristic Parameters of some random network models.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9091a307e5f3da1dceed15e3f117e131
https://doi.org/10.1016/0022-3093(83)90536-7
https://doi.org/10.1016/0022-3093(83)90536-7
Autor:
Shao Zhi an, Zheng Zhao bo
Publikováno v:
Journal of Physics A: Mathematical and General. 21:L633-L637
A technique is developed for solving the large-scale generalised eigenproblem Ab=EBb, where A and B are real symmetric and block tridiagonal or band form matrices; B is positive definite. In physics this technique can be used to calculate the eigenve
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f7010a2a85ed731426f88eadb0175e56
https://doi.org/10.1088/0305-4470/21/12/003
https://doi.org/10.1088/0305-4470/21/12/003
Publikováno v:
Journal of Physics F: Metal Physics. 18:1137-1147
The local density of states of phonons and the local vibrational energy of the intrinsic-type stacking fault in copper and nickel crystals have been calculated using the recursion method. The authors have found a special extended eigenstate and discu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1391121f0951e1263e32606ca15e39f4
https://doi.org/10.1088/0305-4608/18/6/018
https://doi.org/10.1088/0305-4608/18/6/018
Publikováno v:
Journal of Physics C: Solid State Physics. 19:L705-L709
The effect of hopping beyond nearest neighbours on the electronic properties of incommensurate systems is discussed very little in the literature even though for example structural phase transitions from commensurate to incommensurate systems are imp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56db6fbbba49ea36a219c70f10bf3e30
https://doi.org/10.1088/0022-3719/19/30/004
https://doi.org/10.1088/0022-3719/19/30/004
Publikováno v:
Solid State Communications. 62:163-167
The local densities of states (LDOSs) are calculated by use of the recursion method for the lithium or phosphorous-compensated boron-doped crystal-line silicon. The impurity induced local and quasi-local vibrational modes are studied. Good agreement
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f83b6730efc19eb1477d8553bc6639f
https://doi.org/10.1016/0038-1098(87)90183-9
https://doi.org/10.1016/0038-1098(87)90183-9
Publikováno v:
Journal of Non-Crystalline Solids. :217-220
Films of amorphous silicon (a-Si:H,Cl) containing about 10 atomic % hydrogen and 2–8 at % chlorine have been prepared using the r.f. glow-discharge technique with a mixture of H 2 and SiCl 4 . The infrared spectra showed in addition to the hydrogen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::94f5adb32340dcecdeeb813a82127bba
https://doi.org/10.1016/0022-3093(83)90560-4
https://doi.org/10.1016/0022-3093(83)90560-4
Autor:
Zheng Zhao Bo
Publikováno v:
Journal of Physics A: Mathematical and General. 20:6197-6202
A method for calculating the eigenvectors of a ring system is developed. The system can be one chain or many coupled chains. A sample calculation demonstrates that this method is accurate, efficient and can be used to handle large systems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f5d415b10602f1d60a0714ca4939f18
https://doi.org/10.1088/0305-4470/20/18/019
https://doi.org/10.1088/0305-4470/20/18/019