Spin-polarized quantum confinement in nanostructures: Scanning tunneling microscopy
Hirofumi Oka, Oleg O. Brovko, Marco Corbetta, Valeri S. Stepanyuk, Dirk Sander, and Jürgen Kirschner
A full understanding of electron confinement at surfaces and in nanostructures requires that spin-polarization effects be taken into account. This review exploits energy-dependent and spatially resolved scanning tunneling microscopy and spectroscopy to elucidate the role of spin-polarized surface states, spin-dependent scattering by magnetic impurities, and the influence of such effects on the transport properties of nanostructures. Experimental results and theoretical insights converge to give a view of how spatial variations of the electron density impact magnetic properties when electrons are confined to structures with sizes comparable to the de Broglie wavelength.
Abstract: Reviews of Modern Physics
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