Cross-type orbital ordering in the layered hybrid organic-inorganic compound (C<sub>6</sub>H<sub>5</sub>CH<sub>2</sub>CH<sub>2</sub>NH<sub>3</sub>)<sub>2</sub>CuCl<sub>4</sub>
- Nugroho, A.
- Hu, Z.
- Kuo, C.
- Haverkort, M.
- Pi, T.
- Onggo, D.
- Valldor, M.
- Tjeng, L.
Publication date
November 2016
DOIAbstract
We have studied the magnetic properties and the underlying type of orbital ordering in the layered hybrid organic-inorganic compound (C6H5CH2CH2NH3)(2)CuCl4 by using ac-magnetic susceptibility and polarization-dependent soft-x-ray absorption spectroscopy at the Cu-L-2 and Cu-L-3 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 d(x2-z2)/d(y2-z2) arrangement which is different from the d(x2-y2) arrangement found in the parent compounds of the high-T-c cuprate superconductors
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