58 citations · 97 across the 8 of their papers we have counts for
8 papers
Metallic bonds become molecular-like in atomic-sized devices
Harsh Deep Chopra, J. N. Armstrong, Susan Z. Hua
Covalent molecules are characterized by directed bonds, which provide stability-of-form to the molecules relative atomic positions. In contrast, bulk metals are characterized by de…
Emergence of physical properties mapped in a two-component system
Jason N. Armstrong, Eric M. Gande, John W. Vinti +2
Emergence of various properties is mapped in a two-component system from quantum to mesoscale, using Au-Ag alloys. Experiments are designed so that composition is the primary 'inte…
Anisotropic Curie temperature materials
Jason N. Armstrong, Susan Z. Hua, Harsh Deep Chopra
Existence of anisotropic Curie temperature materials [E. R. Callen, Phys. Rev. 124, 1373 (1961)] is a longstanding prediction - materials that become paramagnetic along certain cry…
Stepwise emergence of an intensive physical property from a single-atom to bulk
Jason N. Armstrong, Susan Z. Hua, Harsh Deep Chopra
Intensive or size-invariant physical properties are well known to become size-dependent when the bulk material is reduced to the nanometer scale. Using silver, the present study sh…
Stability of quantum and Sharvin constrictions
Jason N. Armstrong, Susan Z. Hua, Harsh Deep Chopra
Previously, the authors reported direct evidence of channel saturation and conductance quantization in atomic-sized gold constrictions through mechanical perturbation studies, and…
Channel saturation and conductance quantization in single-atom gold constrictions
Jason N. Armstrong, R. M. Schaub, Susan Z. Hua +1
Notwithstanding the discreteness of metallic constrictions, it is shown that the finite elasticity of stable, single-atom gold constrictions allows for a continuous and reversible…