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arXiv · 1407.3570

Intra-unit-cell Magnetic Order in Stoichiometric La$_2$CuO$_4$

Vyacheslav G. Storchak·Jess H. Brewer·Dmitry G. Eshchenko·Patrick W. Mengyan·Oleg E. Parfenov·Andrey M. Tokmachev·Pinder Dosanjh·Sergey N. Barilo
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Abstract

Muon spin rotation measurements supported by magnetization experiments have been carried out in a stoichiometric high-$T_c$ parent compound La$_2$CuO$_4$ in %the a temperature range from 2~K to 340~K and in transverse magnetic fields up to 5~T. Along with the antiferromagnetic local field, muon spin rotation spectra indicate presence of an additional source of magnetic field on the muon. The characteristic splitting of about 45~G coming from this additional magnetic field is consistent with spontaneous circulating currents model of Varma.

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Vyacheslav G. Storchak, Jess H. Brewer, Dmitry G. Eshchenko, Patrick W. Mengyan, Oleg E. Parfenov, Andrey M. Tokmachev, Pinder Dosanjh, Sergey N. Barilo. 2014-07-14. Intra-unit-cell Magnetic Order in Stoichiometric La$_2$CuO$_4$. https://doi.org/10.1103/physrevb.91.205122

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