A comparable study of structural and electrical transport properties of Al and Cu nanowires using first-principle calculations

作者：Gao, N.; Li, J. C.^*; Jiang, Q.

来源：Applied Physics Letters, 2013, 103(26): 263108.

DOI：10.1063/1.4858408

• LARGE-SCALE-INTEGRATION
• SURFACE-ENERGY
• GOLD NANOWIRES
• ATOMIC-SCALE
• COPPER
• FCC
• INTERCONNECTS
• MOLECULES
• ALUMINUM
• CONTACTS

The structural and quantum transport properties of Al and Cu nanowires with diameters up to 3.6 nm are studied using density functional theory combined with Landauer formalism. Contrary to the classical electronic behavior, the conductance of Al wires is larger than that of Cu. This is mainly attributed to the larger contribution of conductance channels from Al-3p, which is determined by the chemical nature. Meanwhile, the stronger axial contraction of Al wires plays a minor role to conductance. This makes Al wires possible candidate interconnects in integrated circuits.

• 出版日期2013-12-23
• 单位吉林大学