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- IBM (United States)US73 papers
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29 papers · 1 filter
Comparing XMCD and DFT with STM spin excitation spectroscopy for Fe and Co adatoms on CuN/Cu(100)
M. Etzkorn, C. F. Hirjibehedin, A. Lehnert +11
We report on the magnetic properties of Fe and Co adatoms on a CuN/Cu(100)- surface investigated by x-ray magnetic dichroism measurements and density functiona…
On Sketching Quadratic Forms
Alexandr Andoni, Jiecao Chen, Robert Krauthgamer +3
We undertake a systematic study of sketching a quadratic form: given an matrix , create a succinct sketch which can produce (without further access…
Determination of intrinsic damping of perpendicularly magnetized ultrathin films from time resolved precessional magnetization measurements
Amir Capua, See-hun Yang, Timothy Phung +1
Magnetization dynamics are strongly influenced by damping. An effective damping constant αeff is often determined experimentally from the spectral linewidth of the free induction d…
Strength of the symmetry spin filtering effect in magnetic tunnel junctions
Sergey V. Faleev, Stuart S. P. Parkin, Oleg N. Mryasov
Strength of the the symmetry spin filtering effect (as defined by the asymptotic behavior of the tunneling magnetoresistance (TMR) at large barrier thicknesses induced by this effe…
Impact of Imbalance Usage of Social Networking Sites on Families
Anika Anwar, Ishrat Ahmed, Tanzima Hashem +1
With the proliferation of social networking sites (SNSs) such as Facebook and Google+, investigating the impact of SNSs on our lives has become an important research area in recent…
Input Sparsity and Hardness for Robust Subspace Approximation
Kenneth L. Clarkson, David P. Woodruff
In the subspace approximation problem, we seek a k-dimensional subspace F of R^d that minimizes the sum of p-th powers of Euclidean distances to a given set of n points a_1, ..., a…