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Visualizing Magnetic Order in Self-Assembly of Superparamagnetic Nanoparticles
Xingyuan Lu, Ji Zou, Minh Pham +16
We use soft x-ray vector-ptychographic tomography to determine the three-dimensional magnetization field in superparamagnetic nanoparticles self-assembled at the liquid-liquid inte…
Universal behavior of highly-confined heat flow in semiconductor nanosystems: from nanomeshes to metalattices
Brendan McBennett, Albert Beardo, Emma E. Nelson +8
Nanostructuring on length scales corresponding to phonon mean free paths provides control over heat flow in semiconductors and makes it possible to engineer their thermal propertie…
Ultrafast perturbation of magnetic domains by optical pumping in a ferromagnetic multilayer
Dmitriy Zusin, Ezio Iacocca, Loïc Le Guyader +23
Ultrafast optical pumping of spatially nonuniform magnetic textures is known to induce far-from-equilibrium spin transport effects. Here, we use ultrafast x-ray diffraction with un…
A new regime of nanoscale thermal transport: collective diffusion counteracts dissipation inefficiency
Kathleen M. Hoogeboom-Pot, Jorge N. Hernandez-Charpak, Erik H. Anderson +5
Understanding thermal transport from nanoscale heat sources is important for a fundamental description of energy flow in materials, as well as for many technological applications i…