arxiv: cond-mat/0101095 · v2 · submitted 2001-01-08 · ❄️ cond-mat.supr-con · cond-mat.str-el

Antiferromagnetic ordering in superconducting {bf YBa₂Cu₃O_{6.5}}

Y. Sidis , C. Ulrich , P. Bourges , C. Bernhard , C.Niedermayer , L.P. Regnault , N.H. Andersen , B. Keimer This is my paper

classification ❄️ cond-mat.supr-con cond-mat.str-el

keywords antiferromagneticorderingsuperconductingbeencoexistingcommensuratecupratedemonstrate

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Commensurate antiferromagnetic ordering has been observed in the superconducting high-$Tc$ cuprate ${\rm YBa_{2}Cu_{3}O_{6.5}}$ (${\rm T_{c}}$=55 K) by polarized and unpolarized elastic neutron scattering. The magnetic peak intensity exhibits a marked enhancement at $T_{c}$. Zero-field $\mu $SR experiments demonstrate that the staggered magnetization is not truly static but fluctuates on a nanosecond time scale. These results point towards an unusual spin density wave state coexisting with superconductivity.

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Antiferromagnetic ordering in superconducting {bf YBa₂Cu₃O_{6.5}}

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