### Session H30: Focus Session: Superconducting and Magnetic Oxide Superlattices and Films

8:00 AM–11:00 AM, Tuesday, March 17, 2009
Room: 334

Chair: Jak Chakhalian, University of Arkansas

Abstract ID: BAPS.2009.MAR.H30.4

### Abstract: H30.00004 : Dynamics of Proximate Order Parameters Measured by the Time-Resolved Magneto-Optical Kerr Effect in SrRuO$_{3}$ /YBa$_{2}$Cu$_{3}$O$_{7-x }$Heterostructures

9:00 AM–9:12 AM

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#### Authors:

C.L.S. Kantner
(Dept. of Physics, UC Berkeley and Lawrence Berkeley National Lab)

M.C. Langner
(Dept. of Physics, UC Berkeley and Lawrence Berkeley National Lab)

S.P. Crane
(Dept. of Materials Science, UC Berkeley)

L.W. Martin
(Dept. of Materials Science, UC Berkeley)

Y.-H. Chu
(Dept. of Materials Science, UC Berkeley)

P. Yu
(Dept. of Materials Science, UC Berkeley)

R. Ramesh
(Dept. of Physics and Dept. of Materials Science, UC Berkeley)

J.W. Orenstein
(Dept. of Physics, UC Berkeley and Lawrence Berkeley National Lab)

The interaction between ferromagnetic and superconducting complex oxides in a heterostructure is a subject of great interest. The recent observation of ferromagnetic resonance in SrRuO$_{3}$ by the time-resolved magneto-optical Kerr effect (TRMOKE) presents a new method for insight into such a system. TRMOKE has been used to compare the temperature dependence of magnetization dynamics in SrRuO$_{3}$ grown on insulating substrates and ferromagnetic SrRuO$_{3}$/superconducting YBa$_{2}$Cu$_{3}$O$_{7-x }$heterostructures. The substantial differences between SRO grown on an insulating substrate compared to YBCO as well as the effects seen upon passing through the YBCO transition temperature are reported.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2009.MAR.H30.4