On the dc Magnetization, Spontaneous Vortex State and Specific Heat in the superconducting state of the weakly ferromagnetic superconductor RuSr${}_2$GdCu${}_2$O${}_8$

Thomas P. Papageorgiou, Ennio Casini, Hans F. Braun +3

Magnetic-field changes $<$ 0.2 Oe over the scan length in magnetometers that necessitate sample movement are enough to create artifacts in the dc magnetization measurements of the…