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Persistent URL http://purl.org/net/epubs/work/35160
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Record Id 35160
Title Structural aspects of metamagnetism in Ca2-xSrxRuO4: Evidence for field tuning of orbital occupation
Abstract The crystal structure of Ca<sub>2-x</sub>SrxRuO<sub>4</sub> with 0.2 <= x <= 1.0 has been studied by diffraction techniques and by high resolution capacitance dilatometry as a function of temperature and magnetic field. Upon cooling in zero magnetic field, the crystal structure and the octahedra shrink along the c direction and elongate in the a and b planes, whereas the opposite occurs upon cooling at high field (x = 0.2 and 0.5). These findings yield evidence for an orbital rearrangement driven by temperature and magnetic field, which accompanies the metamagnetic transition at low temperature. The temperature and magnetic-field dependencies are found to be governed by the same energy scale.
Organisation CCLRC , ISIS , ISIS-GEM
Keywords Physics , neutron powder diffraction , Magnetism , orbital ordering , ISIS 2006
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Language English (EN)
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Journal Article Phys Rev Lett 95 (2005): 267403. doi:10.1103/PhysRevLett.95.267403 2005