Stöhr et al., Science 259, 658 (1993)

First Magnetic Image with X-Rays:Magnetic Bits on Recording Disk

First Antiferromagnetic Contrast with X-Rays:NiO/MgO(100)

Stöhr et al., PRL 83, 1862 (1999)

42 microns

Morphology and Strain Determines Orientation of Antiferromagnetic Axis:

polycrystalline NiO

E

7 m

Unpublished Results

First Antiferromagnetic Domain Images with X-RaysLaFeO3 bi-crystal

11

m

E

Scholl et al., Science 287, 1014 (2000)

a) LaFeO3 layer b) Co layer

dark

light

light

medium

dark

770 775 780 785 790 795 800

No

rma

lize

d I

nte

nsi

ty (

a.u

.)

Photon Energy (eV)705 710 715 720 725 730

No

rma

lize

d I

nte

nsi

ty (

a.u

.)

Photon Energy (eV)

2 µm

Coupling of Antiferromagnetic and Ferromagnetic DomainsCo/LaFeO3

Nolting et al., Nature 405, 767 (2000)

Co on NiO(001): Parallel Coupling of Spins

868 870 872 874

0.00

0.05

0.10

0.15

TE

Y (

a.u.

)

Photon Energy(eV)

777 778 779

0

4

8

TE

Y (

a.u.

)

Photon Energy (eV)

m

[010]

NiOXMLD

CoXMCD

Ohldag et al., PRL 86, 2874 (2001)

AFM Reorientation of NiO(001) Surface

Bare NiO, axes = <121> NiO with Co, axes = <110>

Ohldag et al., PRL 86, 2874 (2001)

Magnetic Imaging of Interfaces: Co on NiO(001

Ohldag et al., PRL 87, 247201 (2001)