S. Danzenbächer

Strong ferromagnetism at the surface of an antiferromagnet caused by buried magnetic moments

Carrying a large, pure spin magnetic moment of 7 μB per atom in the half-filled 4f shell, divalent europium is an outstanding element for assembling novel magnetic devices in which a two-dimensional electron gas may be polarized due to exchange interaction with an underlying magnetically-active Eu layer. Here we show that the Si-Rh-Si surface trilayer of the antiferromagnet EuRh2Si2 bears a surface state, which exhibits an unexpected and large spin splitting controllable by temperature. The splitting sets in below ~32.5 K, well above the ordering temperature of the Eu 4f moments (~24.5 K) in the bulk, indicating a larger ordering temperature in the topmost Eu layers. The driving force for the itinerant ferromagnetism at the surface is the aforementioned exchange interaction. Such a splitting may also be induced into states of functional surface layers deposited onto the surface of EuRh2Si2 or similarly ordered magnetic materials with metallic or semiconducting properties.

Evolution of magnetism in Yb(Rh1-xCox)2Si2

We present a study of the evolution of magnetism from the quantum critical system YbRh

ARPES view on surface and bulk hybridization phenomena in the antiferromagnetic Kondo lattice CeRh2Si2

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Spectroscopic studies of the electronic properties of regularly arrayed two-dimensional protein layers

Si

Wave-vector dependent intensity variations of the Kondo peak in photoemission from CePd3

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Interplay of Dirac fermions and heavy quasiparticles in solids

to the stable trivalent Yb system YbCo

CeFePO: f-d Hybridization and Quenching of Superconductivity

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X-ray Damage in Protein—Metal Hybrid Structures: A Photoemission Electron Microscopy Study

Si

Detecting the parity of electron wave functions in solids by quantum-well states of overlayers

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Spin Orientation of Two-Dimensional Electrons Driven by Temperature-Tunable Competition of Spin–Orbit and Exchange–Magnetic Interactions

. Single crystals of Yb(Rh