Structural and magnetic properties of the Fe[Formula: see text]O[Formula: see text] (110) surface

Area of Science:

• Materials Science
• Surface Science
• Magnetism

Background:

• Understanding the surface properties of iron oxides is crucial for their application in various fields.
• Characterizing magnetic domains and their behavior at the nanoscale provides fundamental insights into magnetic materials.

Purpose of the Study:

• To investigate the structural and magnetic properties of the Fe[Formula: see text]O[Formula: see text] (110) surface.
• To obtain a vector magnetization map and analyze domain wall types.

Main Methods:

• X-ray Photoemission Electron Microscopy (XPEEM)
• Low-Energy Electron Microscopy (LEEM)
• X-ray magnetic circular dichroism (XMCD)

Main Results:

• A well-defined one-dimensional reconstructed surface was achieved after sputtering and annealing.
• Magnetization vectors were mapped, showing domains aligned with bulk easy axes and featuring 180°, 109°, and 71° Néel-type domain walls.
• Estimated iron spin and orbital magnetic moments were 3.4 μB and 0.6 μB, respectively.

Conclusions:

• The study successfully characterized the magnetic and structural properties of the Fe[Formula: see text]O[Formula: see text] (110) surface.
• The observed domain structures and magnetic moments provide valuable data for theoretical models and potential applications.