Complex magnetic phase in submonolayer Fe stripes on Pt(997) | Zendy

J. Honolka | Zendy; T. Y. Lee | Zendy; Klaus Kuhnke | Zendy; Diego Repetto | Zendy; V. Sessi | Zendy; Peter Wahl | Zendy; Andreas Buchsbaum | Zendy; П. Варга | Zendy; Sandra Gardonio | Zendy; C. Carbone | Zendy; S. R. Krishnakumar | Zendy; Pietro Gambardella | Zendy; Matej Komelj | Zendy; Reinhard Singer | Zendy; M. Fähnle | Zendy; K. Fauth | Zendy; Gisela Schütz | Zendy; Axel Enders | Zendy; Klaus Kern | Zendy

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Complex magnetic phase in submonolayer Fe stripes on Pt(997)

Author(s) -

J. Honolka,

T. Y. Lee,

Klaus Kuhnke,

Diego Repetto,

V. Sessi,

Peter Wahl,

Andreas Buchsbaum,

П. Варга,

Sandra Gardonio,

C. Carbone,

S. R. Krishnakumar,

Pietro Gambardella,

Matej Komelj,

Reinhard Singer,

M. Fähnle,

K. Fauth,

Gisela Schütz,

Axel Enders,

Klaus Kern

Publication year - 2009

Publication title -

physical review b

Language(s) - English

Resource type - Journals

eISSN - 1538-4489

pISSN - 1098-0121

DOI - 10.1103/physrevb.79.104430

Subject(s) - condensed matter physics , materials science , monatomic ion , magnetic circular dichroism , ferromagnetism , scanning tunneling microscope , antiferromagnetism , magnetism , magnetic anisotropy , magnetic moment , magnetization , phase (matter) , physics , magnetic field , quantum mechanics , astronomy , spectral line

Correlations between magnetism and morphology of iron nanostructures of monatomic height on Pt997 substrates are studied using x-ray magnetic circular dichroism as well as scanning tunneling microscopy and helium scattering. A drastic collapse of the average magnetization by more than a factor of 4 is observed when increasing the iron coverage from 0.1 to 0.2 ML. This effect goes along with a softening of the magnetic anisotropy energy and a gradual reorientation of the magnetic easy axis from in plane to out of plane. The experimental findings together with electronic density-functional calculations suggest the formation of a complex magnetic phase in corrugated rim regions of Fe islands, leading to both ferromagnetic and antiferromagnetic exchange couplings of Fe moments depending on their various local bonding configurations.

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