44 citations · 114 across the 4 of their papers we have counts for
4 papers
Noncontact dissipation reveals critical central peak in SrTiO3
M. Kisiel, F. Pellegrini, G. E. Santoro +8
The critical fluctuations at second order structural transitions in a bulk crystal may affect the dissipation of mechanical probes even if completely external to the crystal surfac…
Two-level Physics in a Model Metallic Break Junction
P. Lucignano, G. E. Santoro, M. Fabrizio +1
We consider a model inspired by a metal break-junction hypothetically caught at its breaking point, where the non-adiabatic center-of-mass motion of the bridging atom can be treate…
Disproportionation Phenomena on Free and Strained Sn/Ge(111) and Sn/Si(111) Surfaces
G. Ballabio, G. Profeta, S. de Gironcoli +3
Distortions of the Sn/Ge(111) and Sn/Si(111) surfaces are shown to reflect a disproportionation of an integer pseudocharge, , related to the surface band oc…
The mechanism for the 3 x 3 distortion of Sn/ge (111)
S. de Gironcoli, S. Scandolo, G. Ballabio +2
We show that two distinct ground states, one nonmagnetic, metallic, and distorted, the other magnetic, semimetallic (or insulating) and undistorted, compete in -pha…