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In the present study, molecular dynamics simulation has been performed to investigate the anisotropic behavior of free standing $$\hbox {Ag}_{60}\; \hbox {Cu}_{40}$$ nanorods. We choose different orientations with various cross sections to study the dynamics of thermal behavior of $$\hbox {Ag}_{60}\; \hbox {Cu}_{40}$$ nanorods. The system is modeled using embedded atom method potentials. The radial distribution functions are analyzed to reveal the dynamic evolution of the structural behavior of nanorods with different orientations and sample sizes. The total energy and mean square displacement is also calculated to characterize the melting phenomenon of various samples. The melting temperature of the nanorods is found to be significantly size and orientation dependent, and it increases with the increase in cross-sectional area. The nanorods with low-index crystallographic surfaces such as (110) exhibit lowest melting temperature as compared to compact surfaces (111). [ABSTRACT FROM AUTHOR]

We demonstrate enhanced ferromagnetism in copper doped two-dimensional monolayer (-ML). Our first principle calculation based on density functional theory predicted that nonmagnetic -dopant with concentration of 6.25% to be ferromagnetic (FM) in 2D layer which carries a magnetic moment of 2.0 μB per atom and it is found to be long range magnetic coupling among the -dopant. The Cu-dopant in 2D -ML which can be explained in terms of p-d hybridization at Curie temperature and this dopant prefer the FM behavior in 2D layer. Hence doped 2D layer shows strong magnetic properties so that it is a promising material in the field of spintronics. [ABSTRACT FROM AUTHOR]