Physics – Condensed Matter – Superconductivity
Scientific paper
2001-12-20
Phys. Rev. B65, 174514 (2002).
Physics
Condensed Matter
Superconductivity
11 pages, 11 figures, submitted to PRB
Scientific paper
10.1103/PhysRevB.65.174514
Comprehensive measurements of dc and ac susceptibility, dc resistance, magnetoresistance, Hall resistivity, and microwave absorption and dispersion in fields up to 8 T have been carried out on RuSr_2GdCu_2O_8 with the aim to establish the properties of RuO_2 and CuO_2 planes. At ~130 K, where the magnetic order develops in the RuO_2 planes, one observes a change in the slope of dc resistance, change in the sign of magnetoresistance, and the appearance of an extraordinary Hall effect. These features indicate that the RuO_2 planes are conducting. A detailed analysis of the ac susceptibility and microwave data on both, ceramic and powder samples show that the penetration depth remains frequency dependent and larger than the London penetration depth even at low temperatures. We conclude that the conductivity in the RuO_2 planes remains normal even when superconducting order is developed in the CuO_2 planes below \~45 K. Thus, experimental evidence is provided in support of theoretical models which base the coexistence of superconductivity and magnetic order on decoupled CuO_2 and RuO_2 planes.
Basletic Mario
Dulcic A.
Hamzic Amir
Kramer Simon
Paar D.
No associations
LandOfFree
Decoupled CuO_2 and RuO_2 layers in superconducting and magnetically ordered RuSr_2GdCu_2O_8 does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Decoupled CuO_2 and RuO_2 layers in superconducting and magnetically ordered RuSr_2GdCu_2O_8, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Decoupled CuO_2 and RuO_2 layers in superconducting and magnetically ordered RuSr_2GdCu_2O_8 will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-175139