Journal
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN
Volume 77, Issue 2, Pages -Publisher
PHYSICAL SOC JAPAN
DOI: 10.1143/JPSJ.77.023705
Keywords
magnetic Compton scattering; magnetic Compton profile; YTiO3; orbital ordering; strongly correlated electron system
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Orbital ordering state of 3d electrons in YTiO3 has been studied by magnetic Compton profile (MCP) measurement for crystallographic directions of [100] (a-axis) and [001] (c-axis). The magnetic effect of the observed MCP leads to the spin moment that is equal to the saturated magnetic moment within the estimated errors, which strongly suggests quenching of the orbital moment. Shape of the observed MCPs shows directional anisotropy between the two axes. The MCPs are calculated by using an atomic model wave function of a linear combination of two 3d-t(2g) orbitals, ud(yz) +/- vd(zx) (u(2) + v(2) = 1) for the Ti sites. The observed MCP is best reproduced by the calculated MCP with u = 0.84 +/- 0.04 and v = 0.54 +/- 0.04. This value of u is slightly larger than those obtained in the previous studies.
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