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arXiv · 0902.4737

Modulation of superconductivity by spin canting in a hybrid antiferromagnet/superconductor oxide

Awadhesh Mani·T. Geetha Kumary·Daniel Hsu·J. G. Lin·Chyh-Hong Chern
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Abstract

The proximity effect of a C-type antiferromagnet (C-AFM) with the spin canting at low temperature is investigated in the hybrid Nd0.35Sr0.65MnO3(NSCO)/YBa2Cu3O7(YBCO) oxide system through magnetic and transport measurements. It is found that the onset of a spin-canted state destroys partially the superconducting order parameter. Interestingly, due to the instability of this spin-canted state, zero-resistivity recovers at the offset of spin canting. Our result demonstrates clearly the high sensitivity of superconducting order parameter to a modulation of internal field.

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Awadhesh Mani, T. Geetha Kumary, Daniel Hsu, J. G. Lin, Chyh-Hong Chern. 2009-02-27. Modulation of superconductivity by spin canting in a hybrid antiferromagnet/superconductor oxide. https://doi.org/10.1063/1.3087000

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