Practical Strategies for Enhancing the Valley Splitting in Si/SiGe Quantum Wells

Posted by dbos Delft

Kavli Affiliate: Giordano Scappucci | First 5 Authors: Merritt P. Losert, M. A. Eriksson, Robert Joynt, Rajib Rahman, Giordano Scappucci | Summary: Silicon/silicon-germanium heterostructures have many important advantages for hosting spin qubits. However, controlling the valley splitting (the energy splitting between the two low-lying conduction-band valleys) remains a critical challenge for ensuring qubit reliability. Broad […]


Continue.. Practical Strategies for Enhancing the Valley Splitting in Si/SiGe Quantum Wells

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

Posted by klaurent Cornell

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

Posted by klaurent Cornell

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

Posted by klaurent Cornell

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

Variational deep learning of equilibrium transition path ensembles

Posted by klaurent Berkeley

Kavli Affiliate: David T. Limmer | First 5 Authors: Aditya N. Singh, David T. Limmer, , , | Summary: We present a time dependent variational method to learn the mechanisms of equilibrium reactive processes and efficiently evaluate their rates within a transition path ensemble. This approach builds off variational path sampling methodology by approximating the […]


Continue.. Variational deep learning of equilibrium transition path ensembles

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

Posted by klaurent Cornell

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$_{8+x}$

Discovery of Orbital Ordering in Bi2Sr2CaCu2O8+x

Posted by dbos Cornell

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 CuO2 unit cell. Here, theoretical attention usually concentrates on the intra-atom Coulombic interactions dominating the 3d9 and 3d10 configurations of each copper ion. However, if […]


Continue.. Discovery of Orbital Ordering in Bi2Sr2CaCu2O8+x

Discovery of Orbital Ordering in Bi2Sr2CaCu2O8+x

Posted by dbos Cornell

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 CuO2 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 Bi2Sr2CaCu2O8+x

GPU-Accelerated LOD Generation for Point Clouds

Posted by klaurent Delft

Kavli Affiliate: Michael Wimmer | First 5 Authors: Markus Schütz, Bernhard Kerbl, Philip Klaus, Michael Wimmer, | Summary: About: We introduce a GPU-accelerated LOD construction process that creates a hybrid voxel-point-based variation of the widely used layered point cloud (LPC) structure for LOD rendering and streaming. The massive performance improvements provided by the GPU allow […]


Continue.. GPU-Accelerated LOD Generation for Point Clouds

Limits to the strain engineering of layered square-planar nickelate thin films

Posted by klaurent Cornell

Kavli Affiliate: Lena F. Kourkoutis | First 5 Authors: Dan Ferenc Segedin, Berit H. Goodge, Grace A. Pan, Qi Song, Harrison LaBollita | Summary: The layered square-planar nickelates, Nd$_{n+1}$Ni$_{n}$O$_{2n+2}$, are an appealing system to tune the electronic properties of square-planar nickelates via dimensionality; indeed, superconductivity was recently observed in Nd$_{6}$Ni$_{5}$O$_{12}$ thin films. Here, we investigate […]


Continue.. Limits to the strain engineering of layered square-planar nickelate thin films