TY - JOUR
T1 - Spin-polarized quantum confinement in nanostructures
T2 - Scanning tunneling microscopy
AU - Oka, Hirofumi
AU - Brovko, Oleg O.
AU - Corbetta, Marco
AU - Stepanyuk, Valeri S.
AU - Sander, Dirk
AU - Kirschner, Jürgen
N1 - Publisher Copyright:
© 2014 American Physical Society.
PY - 2014/10/3
Y1 - 2014/10/3
N2 - Experimental investigations of spin-polarized electron confinement in nanostructures by scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) are reviewed. To appreciate the experimental results on the electronic level, the physical basis of STM is elucidated with special emphasis on the correlation between differential conductance, as measured by STS, and the electron density of states, which is accessible in ab initio theory. Experimental procedures which allow one to extract the electron dispersion relation from energy-dependent and spatially resolved STM and STS studies of electron confinement are reviewed. The role of spin polarization in electron confinement is highlighted by both experimental and theoretical insights, which indicate variation of the spin polarization in sign and magnitude on the nanometer scale. This review provides compelling evidence for the necessity to include spatial-dependent spin-resolved electronic properties for an in-depth understanding and quantitative assessment of electron confinement in magnetic nanostructures and interaction between magnetic adatoms.
AB - Experimental investigations of spin-polarized electron confinement in nanostructures by scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) are reviewed. To appreciate the experimental results on the electronic level, the physical basis of STM is elucidated with special emphasis on the correlation between differential conductance, as measured by STS, and the electron density of states, which is accessible in ab initio theory. Experimental procedures which allow one to extract the electron dispersion relation from energy-dependent and spatially resolved STM and STS studies of electron confinement are reviewed. The role of spin polarization in electron confinement is highlighted by both experimental and theoretical insights, which indicate variation of the spin polarization in sign and magnitude on the nanometer scale. This review provides compelling evidence for the necessity to include spatial-dependent spin-resolved electronic properties for an in-depth understanding and quantitative assessment of electron confinement in magnetic nanostructures and interaction between magnetic adatoms.
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U2 - 10.1103/RevModPhys.86.1127
DO - 10.1103/RevModPhys.86.1127
M3 - Article
AN - SCOPUS:84908028389
VL - 86
SP - 1127
EP - 1168
JO - Reviews of Modern Physics
JF - Reviews of Modern Physics
SN - 0034-6861
IS - 4
ER -