Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Phuc, N. X."'
Autor:
Tho, P. T., Xuan, C. T. A., Quang, D. M., Bach, T. N., Le, N. T. H., Thanh, T. D., Phuc, N. X., Nam, D. N. H.
La$_{1.5}$Sr$_{0.5}$NiO$_4$ is well known to have a colossal dielectric constant ($\varepsilon_R>10^7$). The La$_{1.5}$Sr$_{0.5}$NiO$_4$ nanoparticle powder was prepared by a combinational method of solid state reaction and high-energy ball milling.
Externí odkaz:
http://arxiv.org/abs/1308.2711
Publikováno v:
Journal Of The Korean Physical Society Volume: 52 Issue: 5 Pages: 1447-1451 Published: MAY 2008
The magnetic order of La0.7Sr0.3MnO3 nanoparticles (NPs) fabricated in a SPEX D8000 mill was systematically studied. The La0.7Sr0.3MnO3 nanocrystals grow from the milled constituent oxides during the milling processes. The magnetization data obtained
Externí odkaz:
http://arxiv.org/abs/0903.1565
Autor:
Nam, D. N. H., Hong, H. S., Khien, N. V., Dai, N. V., Thanh, T. D., Tuong, L. T. C., Hong, L. V., Phuc, N. X.
Magnetic and transport properties of La0.7Ca0.3Mn1-xM'xO3 (M'=Al,Ti) are studied. The dilution of the Mn lattice results in a weakening of the ferromagnetism, a deterioration of the metallic conductivity, and a strong enhancement of the magnetoresist
Externí odkaz:
http://arxiv.org/abs/0804.2101
This paper reports the observations of long-time relaxation, aging, and temperature memory behaviors of resistance and magnetization in the ferromagnetic state of a polycrystalline La0.7Ca0.3Mn0.925Ti0.075O3 compound. The observed glassy dynamics of
Externí odkaz:
http://arxiv.org/abs/0802.2729
The impact of in-plane alternating currents on the exchange bias, resistance, and magnetoresistance of a CoFe/NiCoO/CoFe/Cu/CoFe spin-valve is studied. With increasing current, the resistance is increased while the maximum magnetoresistance ratio dec
Externí odkaz:
http://arxiv.org/abs/0801.1515
Autor:
Nam, D. N. H., Dai, N. V., Hong, L. V., Phuc, N. X., Yu, S. C., Tachibana, M., Takayama-Muromachi, E.
Magnetic entropy and adiabatic temperature changes in and above the room-temperature region has been measured for La0.7Sr0.3Mn1-xM'xO3 (M' = Al, Ti) by means of magnetization and heat capacity measurements in magnetic fields up to 6 T. The magnetocal
Externí odkaz:
http://arxiv.org/abs/0708.2168
Autor:
Nam, D. N. H., Dai, N. V., Hong, L. V., Phuc, N. X., Bau, L. V., Nordblad, P., Newrock, R. S.
The magnetic lattice of mixed-valence Mn ions in La$_{0.7}$Sr$_{0.3}$MnO$_{3}$ is selectively diluted by partial substitution of Al or Ti for Mn. The ferromagnetic transition temperature $T_\mathrm{c}$ and the saturation magnetization $M_\mathrm{s}$
Externí odkaz:
http://arxiv.org/abs/0708.2025
Autor:
Nam, D. N. H., Bau, L. V., Khiem, N. V., Dai, N. V., Hong, L. V., Phuc, N. X., Newrock, R. S., Nordblad, P.
The magnetic lattice of mixed-valence Mn ions in La$_{0.7}$Sr$_{0.3}$MnO$_3$ is selectively diluted by partial substitution of Mn by Al or Ti. The ferromagnetic transition temperature and the saturation moment decreases with substitution in both seri
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601308
While both La$_{0.7}$Sr$_{0.3}$MnO$_3$ and La$_{0.7}$Sr$_{0.3}$CoO$_3$ are ferromagnets with metallic conductivity below $T_\mathrm{c}$ (360K and 220K, respectively), partial substitutions of Co by Mn in La$_{0.7}$Sr$_{0.3}$Co$_{1-y}$Mn$_y$O$_3$ ($y
Externí odkaz:
http://arxiv.org/abs/cond-mat/0207380
Publikováno v:
Phys. Rev. B 63, 174405 (2001)
Dynamic magnetic properties of $\mathrm{Y_{0.7}Ca_{0.3}MnO_{3}}$ are reported. The system appears to attain local ferromagnetic order at $T_{\mathrm{SRF}} \approx 70$ K. Below this temperature the low field magnetization becomes history dependent, i.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0007439