Defeating Broken Symmetry with Doping: Symmetric Resonant Tunneling in Noncentrosymetric Heterostructures

Kavli Affiliate: Grace Xing | First 5 Authors: Jimy Encomendero, Vladimir Protasenko, Debdeep Jena, Huili Grace Xing, | Summary: Resonant tunneling transport in polar heterostructures is intimately connected to the polarization fields emerging from the geometric Berry-phase. In these structures, quantum confinement results not only in a discrete electronic spectrum, but also in built-in polarization […]


Continue.. Defeating Broken Symmetry with Doping: Symmetric Resonant Tunneling in Noncentrosymetric Heterostructures

Fighting Broken Symmetry with Doping: Toward Polar Resonant Tunneling Diodes with Symmetric Characteristics

Kavli Affiliate: Farhan Rana | First 5 Authors: Jimy Encomendero, Vladimir Protasenko, Farhan Rana, Debdeep Jena, Huili Grace Xing | Summary: The recent demonstration of resonant tunneling transport in nitride semiconductors has led to an invigorated effort to harness this quantum transport regime for practical applications. In polar semiconductors, however, the interplay between fixed polarization […]


Continue.. Fighting Broken Symmetry with Doping: Toward Polar Resonant Tunneling Diodes with Symmetric Characteristics

Fighting Broken Symmetry with Doping: Toward Polar Resonant Tunneling Diodes with Symmetric Characteristics

Kavli Affiliate: Farhan Rana | First 5 Authors: Jimy Encomendero, Vladimir Protasenko, Farhan Rana, Debdeep Jena, Huili Grace Xing | Summary: The recent demonstration of resonant tunneling transport in nitride semiconductors has led to an invigorated effort to harness this quantum transport regime for practical applications. In polar semiconductors, however, the interplay between fixed polarization […]


Continue.. Fighting Broken Symmetry with Doping: Toward Polar Resonant Tunneling Diodes with Symmetric Characteristics

A Distributionally Robust Random Utility Model

Kavli Affiliate: David Muller | First 5 Authors: David Müller, Emerson Melo, Ruben Schlotter, , | Summary: This paper introduces the distributionally robust random utility model (DRO-RUM), which allows the preference shock (unobserved heterogeneity) distribution to be misspecified or unknown. We make three contributions using tools from the literature on robust optimization. First, by exploiting […]


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Single-Step Synthesis of Shape-Controlled Polymeric Particles using Initiated Chemical Vapor Deposition in Liquid Crystals

Kavli Affiliate: Nicholas L. Abbott | First 5 Authors: Apoorva Jain, Soumyamouli Pal, Nicholas L. Abbott, Rong Yang, | Summary: The ability to synthesize shape-controlled polymer particles will benefit a wide range of applications including targeted drug delivery and metamaterials with reconfigurable structures, but existing synthesis approaches are commonly multistep and limited to a narrow […]


Continue.. Single-Step Synthesis of Shape-Controlled Polymeric Particles using Initiated Chemical Vapor Deposition in Liquid Crystals

Single-Step Synthesis of Shape-Controlled Polymeric Particles using Initiated Chemical Vapor Deposition in Liquid Crystals

Kavli Affiliate: Nicholas L. Abbott | First 5 Authors: Apoorva Jain, Soumyamouli Pal, Nicholas L. Abbott, Rong Yang, | Summary: The ability to synthesize shape-controlled polymer particles will benefit a wide range of applications including targeted drug delivery and metamaterials with reconfigurable structures, but existing synthesis approaches are commonly multistep and limited to a narrow […]


Continue.. Single-Step Synthesis of Shape-Controlled Polymeric Particles using Initiated Chemical Vapor Deposition in Liquid Crystals

Nanoscale magnetic field sensing with spin-Hall nano-oscillator devices

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Yanyou Xie, Hil Fung Harry Cheung, Gregory D. Fuchs, , | Summary: In this work, we develop a nanoscale magnetic field sensor based on a spin-Hall nano-oscillator (SHNO) device. We fabricate constriction-based SHNO devices using Ni$_{81}$Fe$_{19}$/Au$_{0.25}$Pt$_{0.75}$ bilayer and use them to demonstrate quasi-DC sensing up to […]


Continue.. Nanoscale magnetic field sensing with spin-Hall nano-oscillator devices

Nanoscale magnetic field sensing with spin-Hall nano-oscillator devices

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Yanyou Xie, Hil Fung Harry Cheung, Gregory D. Fuchs, , | Summary: In this work, we develop a nanoscale magnetic field sensor based on a spin-Hall nano-oscillator (SHNO) device. We fabricate constriction-based SHNO devices using Ni$_{81}$Fe$_{19}$/Au$_{0.25}$Pt$_{0.75}$ bilayer and use them to demonstrate quasi-DC sensing up to […]


Continue.. Nanoscale magnetic field sensing with spin-Hall nano-oscillator devices

Nanoscale magnetic field sensing with spin-Hall nano-oscillator devices

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Yanyou Xie, Hil Fung Harry Cheung, Gregory D. Fuchs, , | Summary: In this work, we develop a nanoscale magnetic field sensor based on a spin-Hall nano-oscillator (SHNO) device. We fabricate constriction-based SHNO devices using Ni$_{81}$Fe$_{19}$/Au$_{0.25}$Pt$_{0.75}$ bilayer and use them to demonstrate quasi-DC sensing up to […]


Continue.. Nanoscale magnetic field sensing with spin-Hall nano-oscillator devices

Discovery of Orbital Ordering in Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$

Kavli Affiliate: J. C. Seamus Davis | First 5 Authors: Shuqiu Wang, Niall Kennedy, Kazuhiro Fujita, Shin-ichi Uchida, Hiroshi Eisaki | Summary: The primordial ingredient of cuprate superconductivity is the CuO$_2$ unit cell. Here, theoretical attention usually concentrates on the intra-atom Coulombic interactions dominating the $3d^9$ and $3d^{10}$ configurations of each copper ion. However, if […]


Continue.. Discovery of Orbital Ordering in Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$