Novel properties in heterostructures of Cuprate and Manganite
Jauyn Grace Lin1*
1Center for Condensed Matter Sciences, National Taiwan University, Taipei, Taiwan
* presenting author:Jauyn Grace Lin, email:jglin@ntu.edu.tw
Interaction of mutually exclusive superconductor (S) and ferromagnet (F) leads to many interesting and novel phenomena such as depression and/or oscillation of superconducting transition temperature, domain wall superconductivity, superconducting spin switch effect, odd-parity spin triplet superconductivity etc. In artificial structures such as F/S, F/S/F and S/F/S, fabrication of appropriate interfaces and understanding their role are vital from both basic physics and applications point of view for realization of various superconducting spintronic devices. In particular, epitaxially grown heterostructures of half metallic manganite La0.7Sr0.3MnO3 (LSMO) and high temperature superconductor YBa2Cu3O7 (YBCO) are well recorded in the literatures. In this talk, some novel properties of YBCO/LSMO and YBCO/LSMO/YBCO will be discussed, including long ranged proximity effect, spin injection effects and the interfacial vortex states. In addition, several systems with LSMO being replaced by other half metallic oxides, such as C-type antiferromagnetic Nd0.35Sr0.65MnO3 and A-type antiferromagnetic Nd0.43Sr0.57MnO3 are studied comparatively.
[1] A. Mani, T. G. Kumary, Daniel Hsu, J. G. Lin, Appl. Phys. Lett. 94, 072509 (2009)
[2] P. Paul Joseph, Daniel Hsu and J. G. Lin, Appl. Phys. Lett. 103, 012601 (2013)


Keywords: superconductor, Cuprate, proximity effect, Manganite, antiferromagnetic