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- Brookhaven National LaboratoryUS85 papers
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9 papers · 1 filter
Magnetic order and energy-scale hierarchy in artificial spin ice
Henry Stopfel, Erik Östman, Ioan-Augustin Chioar +6
In order to explain and predict the properties of many physical systems, it is essential to understand the interplay of different energy-scales. Here we present investigations of t…
Onset of natural selection in auto-catalytic heteropolymers
Alexei V. Tkachenko, Sergei Maslov
Reduction of information entropy along with ever-increasing complexity are among the key signatures of living matter. Understanding the onset of such behavior in early prebiotic wo…
Cathodoluminescence as an Effective Probe of Carrier Transport and Deep Level Defects in Droop-Mitigating InGaN/GaN Quantum Well Heterostructures
Zhibo Zhao, Akshay Singh, Jordan Chesin +7
Commercial InGaN/GaN light emitting diode heterostructures continue to suffer from efficiency droop at high current densities. Droop mitigation strategies target Auger recombinatio…
Molecular Polarizability of Water from the Local Dielectric Response Theory
Xiaochuan Ge, Deyu Lu
We propose a fully ab initio theory to compute the electron density response under the perturbation in the local field. This method is based on our recently developed local dielect…
The importance of the weak: Interaction modifiers in artificial spin ices
Erik Östman, Henry Stopfel, Ioan-Augustin Chioar +4
The modification of geometry and interactions in two-dimensional magnetic nanosystems has enabled a range of studies addressing the magnetic order, collective low-energy dynamics,…
Surface buckling of phosphorene materials: determination, origin and influence on electronic structure
Zhongwei Dai, Wencan Jin, Jie-Xiang Yu +7
The surface structure of phosphorene crystals materials is determined using surface sensitive dynamical micro-spot low energy electron diffraction (μLEED) analysis using a high spa…