Cross-type orbital ordering in the layered hybrid organic-inorganic compound (C6 H5CH2CH2NH3)2CuCl4

A. A. Nugroho, Z. Hu, C. Y. Kuo, M. W. Haverkort, T. W. Pi, D. Onggo, M. Valldor, L. H. Tjeng

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4 Scopus citations

Abstract

We have studied the magnetic properties and the underlying type of orbital ordering in the layered hybrid organic-inorganic compound (C6H5CH2CH2NH3)2CuCl4 by using ac-magnetic susceptibility and polarization-dependent soft-x-ray absorption spectroscopy at the Cu-L2 and Cu-L3 edges. We have established that the compound has a long-range ferromagnetic ordering both in plane and out of plane and we found from the analysis of the absorption spectra that the orbital ordering of the Cu2+ holes involves the cross-type dx2-z2/dy2-z2 arrangement which is different from the dx2-y2 arrangement found in the parent compounds of the high-Tc cuprate superconductors.

Original languageEnglish
Article number184404
JournalPhysical Review B
Volume94
Issue number18
DOIs
StatePublished - 2016

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