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Akademický článek
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Autor:
Zhang, W. Y., Zhao, Y. G., Guo, Z. P., Qiao, P. T., Cui, L., Luo, L. B., Zhang, X. P., Yu, H. C., Shi, Y. G., Zhang, S. Y., Zhao, T. Y., Li, J. Q.
Effect of Ti doping on the electrical transport and magnetic properties of layered Na0.8Co1-xTixO2 compounds has been investigated. The lattice parameters a and c increase with x. A minor amount of Ti doping results in a metal-insulator transition at
Externí odkaz:
http://arxiv.org/abs/cond-mat/0506268
Autor:
Yang, H. X., Nie, C. J., Shi, Y. G., Yu, H. C., Ding, S., Liu, Y. L., Wu, D., Wang, N. L., Li, J. Q.
The nonstoichiometric NaxCoO2 system exhibits extraordinary physical properties that correlate with temperature and Na concentration in its layered lattice without evident long-range structure modification when conventional crystallographic technique
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412578
Autor:
Yang, H. X., Shi, Y. G., Nie, C. J., Wu, D., Yang, L. X., Dong, C., Yu, H. C., Zhang, H. R., Jin, C. Q., Li, J. Q.
Transmission electron microscopy observations reveal the presence of complex superstructures and remarkable phase separation in association with Na-ordering phenomenon in y-Na0.5CoO2. Resistivity and magnetization measurements indicate that three pha
Externí odkaz:
http://arxiv.org/abs/cond-mat/0409308
Epitaxial Ba0.5Sr0.5TiO3 thin films grown on the (001) LaAlO3 substrates with the ferroelectric transition of about 250K have been investigated by TEM and off-axis electron holography. Cross-sectional TEM observations show that the 350nm-thick Ba0.5S
Externí odkaz:
http://arxiv.org/abs/cond-mat/0405479
Transmission-electron-microscopy investigation reveals the presence of a superstructure with a doubled period of 2d110 in the NaxCoO2 materials for x ranging from 0.75 to 1.0. Systematic analyses suggest that this superstructure in general appears ju
Externí odkaz:
http://arxiv.org/abs/cond-mat/0401052
Structure, transport and magnetic properties have been investigated for layered NaCo1-xMnxO2 materials. With the increase of Mn-doping amount, measurements of x-ray diffraction indicate that the in-plane lattice parameter a decreases progressively, a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0312086
Publikováno v:
Supercon. Sci. Tech., 17,42-46(2004)
The structural properties of NaxCoO2 and NaxCoO2yH2O have been investigated. The NaxCoO2yH2O samples in general show up the superconducting transitions at around 3.5K. EDAX analyses suggest our samples have the average composition of Na0.65CoO2 for t
Externí odkaz:
http://arxiv.org/abs/cond-mat/0306070
Akademický článek
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Publikováno v:
Anaesthesia; Jan2024, Vol. 79 Issue 1, p63-70, 8p
