The effect of hole-doping on the magnetic properties of Nd1-xTiO3

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dc.creatorSefat, Athena S.
dc.creatorGreedan, John E.
dc.creatorCranswick, Lachlan
dc.date2006-07-11
dc.date.accessioned2026-07-07T07:15:57Z
dc.date.available2026-07-07T07:15:57Z
dc.descriptionThe magnetic properties of the hole(x)-doped Mott-Hubbard, antiferromagnetic insulator, NdTiO3, have been investigated in Nd1-xTiO3. For the materials in 0.010(6) < x < 0.112(4), correlation between the structural and magnetic properties is discussed with respect to the Ti - O - Ti angles and the Ti - O bond distances. For 0.010(6) < x < 0.071(10), long-range magnetic order is observed through low temperature neutron diffraction and heat capacity. Neel ordering temperatures of 88.2 K and 61.9 K are determined, respectively, for x = 0.019(6) and x = 0.064(10). From high resolution neutron diffraction, the Pnma magnetic structure is assigned, unambiguously, as GxCy on Ti3+ and Cy2 on Nd3+. The Ti3+ ordered moment decreases gradually from 0.45(8) uB for x = 0.019(6) to 0.31(7) uB for x = 0.071(10), but vanishes abruptly for higher x. Antiferromagnetic short-range order exists for 0.074(9) < x < 0.098(10) as determined by neutron diffraction and the field-dependence of the susceptibility. This is the first observation of short-range order for any hole-doped titanate system. For 29(4)% hole-doping in Nd1-xTiO3, x > 0.098(10), all magnetic ordering is destroyed.
dc.identifierhttps://arxiv.org/abs/cond-mat/0607286
dc.identifierhttp://arxiv.org/abs/cond-mat/0607286
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/113408
dc.subjectStrongly Correlated Electrons
dc.titleThe effect of hole-doping on the magnetic properties of Nd1-xTiO3
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