Mott versus Slater-type metal-insulator transition in Mn-substituted Sr3Ru2O7
We present a temperature-dependent x-ray absorption (XAS) and resonant elastic x-ray scattering (REXS) study of the metal-insulator transition (MIT) in Sr3(Ru1-xMnx)2O7. The XAS results reveal that the MIT drives the onset of local antiferromagnetic correlations around the Mn impurities, a precursor...
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| Main Authors: | , , |
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| Format: | Article (Journal) Chapter/Article |
| Language: | English |
| Published: |
2012
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| In: |
Arxiv
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| Online Access: | Verlag, kostenfrei, Volltext: http://arxiv.org/abs/1206.4689
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| Author Notes: | M.A. Hossain, B. Bohnenbuck, Y.D. Chuang, M.W. Haverkort, I.S. Elfimov, A. Tanaka, A.G. Cruz, Z. Hu, H.-J. Lin, C.T. Chen, R. Mathieu, Y. Tokura, Y. Yoshida, L.H. Tjeng, Z. Hussain, B. Keimer, G.A. Sawatzky, and A. Damascelli |
| Summary: | We present a temperature-dependent x-ray absorption (XAS) and resonant elastic x-ray scattering (REXS) study of the metal-insulator transition (MIT) in Sr3(Ru1-xMnx)2O7. The XAS results reveal that the MIT drives the onset of local antiferromagnetic correlations around the Mn impurities, a precursor of the long-range antiferromagnetism detected by REXS at T_order<T_MIT. This establishes that the MIT is of the Mott-type (electronic correlations) as opposed to Slater-type (magnetic order). While this behavior is induced by Mn impurities, the (1/4,1/4,0) order exists for a wide range of Mn concentrations, and points to an inherent instability of the parent compound. |
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| Item Description: | Die Ziffern 3, 2 und 7 im Text sind tiefgestellt Gesehen am 27.11.2017 |
| Physical Description: | Online Resource |