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- IBM (United States)US73 papers
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14 papers · 1 filter
First-principles study of the structural stability of Mn3Z (Z=Ga, Sn and Ge) Heusler compounds
Delin Zhang, Binghai Yan, Shu-Chun Wu +4
We investigate the structural stability and magnetic properties of cubic, tetragonal and hexagonal phases of Mn3Z (Z=Ga, Sn and Ge) Heusler compounds using first-principles density…
How Robust are Linear Sketches to Adaptive Inputs?
Moritz Hardt, David P. Woodruff
Linear sketches are powerful algorithmic tools that turn an n-dimensional input into a concise lower-dimensional representation via a linear transformation. Such sketches have seen…
Beyond Worst-Case Analysis in Private Singular Vector Computation
Moritz Hardt, Aaron Roth
We consider differentially private approximate singular vector computation. Known worst-case lower bounds show that the error of any differentially private algorithm must scale pol…
Electronic and crystalline structures of zero band-gap PdLuBi thin films grown epitaxially on MgO(100)
Rong Shan, Siham Ouardi, Gerhard H. Fecher +8
Thin films of the proposed topological insulator PdLuBi - a Heusler compound with the C1b structure - were prepared on Ta-Mo-buffered MgO(100) substrates by co-sputtering from PdBi…
A p-type Heusler compound: Growth, structure, and properties of epitaxial thin NiYBi films on MgO(100)
Rong Shan, Siham Ouardi, Gerhard H. Fecher +7
Epitaxial semiconducting NiYBi thin films were directly prepared on MgO(100) substrates by magnetron sputtering. The intensity ratio of the (200) and (400) diffraction peaks, I(200…
Detecting External Electron Spins Using Nitrogen-Vacancy Centers
H. J. Mamin, M. H. Sherwood, D. Rugar
Near-surface nitrogen-vacancy (NV) centers have been created in diamond through low energy implantation of 15N to sense electron spins that are external to the diamond. By performi…