Single-atom spin-flip spectroscopy.
We demonstrate the ability to measure the energy required to flip the spin of single adsorbed atoms. A low-temperature, high-magnetic field scanning tunneling microscope was used to measure the spin excitation spectra of individual manganese atoms adsorbed on Al2O3 islands on a NiAl surface. We find pronounced variations of the spin-flip spectra for manganese atoms in different local environments.
Heinrich
A J
AJ
IBM Research Division, Almaden Research Center, 650 Harry Road, San Jose, CA 95120, USA. heinrich@almaden.ibm.com
Gupta
J A
JA
Lutz
C P
CP
Eigler
D M
DM