Measuring hystereses of magnetic surfaces by ion scattering

Schleberger, Marika; Dirska, M.; Manske, J.; Närmann, A.

doi:10.1063/1.120275

Cited by 11 publications

(2 citation statements)

References 9 publications

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“…The experimental set-up has been described in detail elsewhere 9,13 and here we will only briefly describe the basics. A copper single crystal oriented in the (111) direction within 0.5°was sputter cleaned Ar C , E D 500 eV and annealed T Anneal D 670 K before each deposition.…”

Section: Methodsmentioning

confidence: 99%

Thin Co films on Cu(111) studied by electron capture spectroscopy

Schleberger¹,

Manske²,

Dirska³

2005

Surface & Interface Analysis

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We have studied thin films of Co on Cu(111) single crystals with electron capture spectroscopy (ECS). The magnetism from the cobalt layer can be detected clearly in remanence and as a function of the outer magnetic field. The measured circular polarization of the emitted light is related directly to the structural and magnetic changes of the system, depending on the cobalt layer thickness. We find the set-in of in-plane magnetization at ∼2 monolayers of cobalt and the saturation of our signal at a film thickness of 7-8 monolayers. At coverages above 3-4 monolayers the increasing growth of hcp cobalt domains at the expense of fcc cobalt domains gives rise to a linearly increasing ECS signal up to 7.5 monolayers. We attribute this to the fact that the fcc cobalt domains are covered with copper, whereas the hcp cobalt domains expose cobalt in the upper layer. Monte-Carlo simulations of our ion scattering experiments show that great experimental care has to be taken in order to avoid excessive sputtering damage to the sample. By using moderate primary ion energies and small angles of incidence, thin films can be investigated with ECS in the grazing incidence geometry without changing the film structure.

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Section: Methodsmentioning

confidence: 99%

Thin Co films on Cu(111) studied by electron capture spectroscopy

Schleberger¹,

Manske²,

Dirska³

2005

Surface & Interface Analysis

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“…10-16͒ and Ni͑110͒, 17 a thin film of Mn on Fe͑100͒, 18 and an amorphous ferromagnetic Fe 5 Co 75 B 20 ribbon. 19 Ion-scattering experiments under a glancing angle of incidence ⌽ in ͑up to some degrees͒ run under conditions of planar ''channeling,'' 20 i.e., the projectile motion is characterized by a ''slow'' motion normal to the surface plane and a ''fast'' parallel motion. Then atomic projectiles are reflected from the topmost layer of surface atoms.…”

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confidence: 99%