136 citations · 411 across the 7 of their papers we have counts for
7 papers
Element resolved evidence of superdiffusive terahertz spin current arising from ultrafast demagnetization process
R. Gupta, F. Cosco, R. S. Malik +13
Using element-specific measurements of the ultrafast demagnetization of Ru/FeCo heterostructures, we show that Ru can exhibit a significant magnetic contrast (3% asym…
Magneto-Infrared Study of Topological Insulator Bi2Se3
W. Yu, X. Chen, Z. Jiang +5
We present a magneto-infrared spectroscopic study of thin Bi2Se3 single crystal flakes. Magneto-infrared transmittance and reflectance measurements are performed in the Faraday geo…
Magnetoplasmons in quasi-neutral epitaxial graphene nanoribbons
J. M. Poumirol, W. Yu, X. Chen +8
We present infrared transmission spectroscopy study of the inter-Landau-level excitations in quasi-neutral epitaxial graphene nanoribbon arrays. We observed a substantial deviation…
Ultrafast carrier and phonon dynamics in Bi2Se3 crystals
J. Qi, X. Chen, W. Yu +9
Ultrafast time-resolved differential reflectivity of Bi2Se3 crystals is studied using optical pump-probe spectroscopy. Three distinct relaxation processes are found to contribute t…
Growth and properties of ferromagnetic In(1-x)Mn(x)Sb alloys
T. Wojtowicz, W. L. Lim, X. Liu +15
We discuss a new narrow-gap ferromagnetic (FM) semiconductor alloy, In(1-x)Mn(x)Sb, and its growth by low-temperature molecular-beam epitaxy. The magnetic properties were investiga…
In(1-x)Mn(x)Sb - a new narrow gap ferromagnetic semiconductor
T. Wojtowicz, G. Cywinski, W. L. Lim +10
A narrow-gap ferromagnetic In(1-x)Mn(x)Sb semiconductor alloy was successfully grown by low-temperature molecular beam epitaxy on CdTe/GaAs hybrid substrates. Ferromagnetic order i…