Probing Single Jumps of Surface Atoms

Autor(en)

Gero Vogl, Marcel Sladecek, S. Dattagupta

Abstrakt

Jumps of single atoms can be followed on their time and space scale (nanoseconds and Angstroms) by applying nuclear resonance scattering of synchrotron radiation. Here we develop the theory for jump diffusion in two-dimensional systems. Two types of phenomena are noteworthy: apparent acceleration of the nuclear decay and relaxation of hyperfine interactions, in particular, electric quadrupole interactions. The latter effect becomes for the first time one of significance and well measurable due to the inherent anisotropy of the surface. We show how, by way of motional narrowing, to distinguish between the motion of the probe atom itself and the motion of adatoms.

Organisation(en)

Dynamik Kondensierter Systeme

Externe Organisation(en)

Philips Austria, Indian Institute of Science

Journal

Physical Review Letters

Band

99

Anzahl der Seiten

4

ISSN

0031-9007

DOI

https://doi.org/10.1103/PhysRevLett.99.155902

Publikationsdatum

2007

Peer-reviewed

Ja

ÖFOS 2012

103015 Kondensierte Materie

Link zum Portal

https://ucris.univie.ac.at/portal/de/publications/probing-single-jumps-of-surface-atoms(eb1e8769-b2fa-489f-9652-0c6bcfe8e7ec).html