A low temperature disordered phase of alpha-Pb/Ge(111)

Details A low temperature disordered phase of alpha-Pb/Ge(111) A low temperature disordered phase of alpha-Pb/Ge(111)

2004-07-26

arxiv.org/abs/cond-mat/0407674v1

Physics

Condensed Matter

Materials Science

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.94.036105

A new structural phase transition has been observed at low temperatures for the one third of a monolayer (alpha phase) of Pb on Ge(111) using a variable-temperature scanning tunneling microscope. The well-known (r3xr3)R30 to (3x3) transition is accompanied by a new structural phase transition from (3x3) to a disordered phase at ~76 K. The formation of the new disordered phase is incompatible with the belief that the (3x3) phase is the ground state. The mechanism of the phase transition in this triangular lattice can be mapped onto antiferromagnetic spin Ising model, with the geometric frustration.

Affiliated with

Also associated with

No associations

Rating

A low temperature disordered phase of alpha-Pb/Ge(111) does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with A low temperature disordered phase of alpha-Pb/Ge(111), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A low temperature disordered phase of alpha-Pb/Ge(111) will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-86744