Showing 2004 · cond-mat.mtrl-sciShow all

5 papers · 2 filters

cond-mat.mtrl-sci2004★ 2 cited

Aharonov-Bohm Oscillation and Chirality Effect in Optical Activity of Single Wall Carbon Nanotubes

Fei Ye, Bing-Shen Wang, Zhao-Bin Su

We study the Aharonov-Bohm effect in the optical phenomena of single wall carbon nanotubes (SWCN) and also their chirality dependence. Specially, we consider the natural optical ac…

cond-mat.mtrl-sci2004★ 49 cited

Ferroelectricity in Pb(ZrTi)O thin films: critical thickness and 180 stripe domains

Zhongqing Wu, Ningdong Huang, Zhirong Liu +4

The ferroelectric properties of disorder Pb(ZrTi)O thin films are investigated with Monte Carlo simulations on the basis of a first-principles-derived Hamiton…

cond-mat.mtrl-sci2004★ 56 cited

Universal behavior of giant electroresistance in epitaxial La0.67Ca0.33MnO3 thin films

Y. G. Zhao, Y. H. Wang, G. M. Zhang +6

We report a giant resistance drop induced by dc electrical currents in La0.67Ca0.33MnO3 epitaxial thin films. Resistance of the patterned thin films decreases exponentially with in…

cond-mat.mtrl-sci2004★ 10 cited

Structural Trends Interpretation of the Metal-to-Semiconductor Transition in Deformed Carbon Nanotubes

Jun-Qiang Lu, Jian Wu, Wenhui Duan +2

Two mechanisms that drive metal-to-semiconductor transitions in single-walled carbon nanotubes are theoretically analyzed through a simple tight-binding model. By considering simpl…

cond-mat.mtrl-sci2004★ 10 cited

Electrical transport and magnetic properties of nanostructured La0.67Ca0.33MnO3

Y. G. Zhao, W. Cai, X. S. Wu +4

Nanostructured La0.67Ca0.33MnO3 (NS-LCMO) was formed by pulsed-laser deposition on the surface of porous Al2O3. The resistance peak temperature (Tp) of the NS-LCMO increases with i…