Anisotropic spin--spin correlations in Mn$_1$/X(111), with X = Pd, Pt, Ag and Au

Details Anisotropic spin--spin correlations in Mn$_1$/X(111), with X = Pd, Pt, Ag and Au Anisotropic spin--spin correlations in Mn$_1$/X(111), with X = Pd, Pt, Ag and Au

2010-10-25

arxiv.org/abs/1010.5135v2

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

11 pages, 5 figures, submitted to Phys Rev B

Scientific paper

We present a finite-temperature theory of the anisotropic spin-spin correlations in magnetic metallic monolayers, deposited on a suitable substrate. The `spins' are the local moments set up by the itinerant electrons, and the key concept is the relativistic disordered local moment state, which represents the paramagnetic state of a set of local moments. The spin-spin correlations between these local moments are then extracted using the linear response formalism. The anisotropy is included in a fully relativistic treatment, based on the Dirac equation, and has a qualitative impact on noncollinear magnetic states, by lifting their chiral degeneracy. The theory is applied to Mn monolayers on the hexagonal (111) surfaces of Pd, Pt, Ag and Au. The presence of competing exchange interactions is highlighted by choosing different substrates, which favour either the row-wise antiferromagnetic state or the chiral triangular N\'eel state. We correlate the electronic structure with the magnetic properties, by comparing filled with partially filled substrate d--bands, and low vs high atomic number. The disagreement between theory and experiment for Mn$_1$/Ag(111) is addressed, and the nature of the magnetic domains found experimentally is suggested to be chiral.

Affiliated with

Also associated with

No associations

Rating

Anisotropic spin--spin correlations in Mn$_1$/X(111), with X = Pd, Pt, Ag and Au 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 Anisotropic spin--spin correlations in Mn$_1$/X(111), with X = Pd, Pt, Ag and Au, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anisotropic spin--spin correlations in Mn$_1$/X(111), with X = Pd, Pt, Ag and Au will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-94197