Magnetism of step-decorated Fe on Pd(110)

Journal Article · Mon Oct 01 00:00:00 EDT 2001 · Physical Review B

DOI:https://doi.org/10.1103/PhysRevB.64.144410· OSTI ID:40277679

Li, Dongqi; Cuenya, B Roldan; Pearson, J; Bader, S D; Keune, W

We investigate the growth and magnetic properties of submonolayer Fe wedges on a stepped Pd(110) substrate with reflection high-energy electron diffraction (RHEED) and the surface magneto-optic Kerr effect. RHEED suggests that Fe atoms decorate the steps to form nanostripes. These stripes are ferromagnetic above 0.3 monolayer Fe coverage, or {approx}6 {angstrom} average stripe width, and have a magnetic easy axis along the surface normal. The onset temperatures of the broadened transition exhibit finite-size scaling with a shift exponent {lambda} of 1.2{+-}0.3, consistent with two-dimensional Ising expectations. The coercivity is less temperature dependent than the magnetization.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: (US)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 40277679
• Journal Information: Physical Review B, Vol. 64, Issue 14; Other Information: DOI: 10.1103/PhysRevB.64.144410; Othernumber: PRBMDO000064000014144410000001; 018138PRB; PBD: 1 Oct 2001; ISSN 0163-1829
• Publisher: The American Physical Society
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
ATOMS
ELECTRON DIFFRACTION
KERR EFFECT
MAGNETIC PROPERTIES
MAGNETISM
MAGNETIZATION
REFLECTION
SUBSTRATES