W. Siemons

Critical thickness for itinerant ferromagnetism in ultrathin films of SrRuO$_3$ (2008)

Xia, Jing, Siemons, W., Koster, G., Beasley, M. R., Kapitulnik, A.

Ultrathin films of the itinerant ferromagnet SrRuO$_3$ were studied using transport and magnto-optic polar Kerr effect. We find that below 4 monolayers the films become insulating and their magnetic...

Preparation and properties of amorphous MgB2/MgO superstructures: Model disordered superconductor (2008)

Siemons, W., Steiner, M.A., Koster, G., Blank, D.H.A., Beasley, M.R., Kapitulnik, A.

In this paper, we introduce a unique method for fabricating MgB2/MgO multilayers and demonstrate the potential for using them as a new model for disordered superconductors. In this approach, we...

Polar Kerr-Effect Measurements of the High-Temperature YBa2Cu3O6+x Superconductor: Evidence for Broken Symmetry near the Pseudogap Temperature (2008)

Xia, Jing, Schemm, Elizabeth, Deutscher, G., Kivelson, S.A., Bonn, D.A., Hardy, W.N., ...

The polar Kerr effect in the high-Tc superconductor YBa2Cu3O6+x was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed nonzero Kerr...

Polar Kerr Effect Measurements of YBa2Cu3O6+x: Evidence for Broken Symmetry Near the Pseudogap Temperature (2007)

Xia, Jing, Schemm, Elizabeth, Deutscher, G., Kivelson, S. A., Bonn, D. A., Hardy, W. N., ...

Polar Kerr effect in the high-Tc superconductor \YBCO was measured at zero magnetic field with high precision using a cyogenic Sagnac fiber interferometer. We observed non-zero Kerr rotations of...

Preparation and properties of amorphous MgB$_2$/MgO superstructures: A new model disordered superconductor (2007)

Siemons, W., Steiner, M. A., Koster, G., Blank, D. H. A., Beasley, M. R., Kapitulnik, A.

In this paper we introduce a novel method for fabricating MgB$_2$/MgO multilayers and demonstrate the potential for using them as a new model for disordered superconductors. In this approach we...