Magnetoelastic coupling in RETiO3 (RE = La, Nd, Sm, Gd, Y)

Abstract

A detailed analysis of the crystal structure in RETiO3 with RE = La, Nd, Sm, Gd, and Y reveals an intrinsic coupling between orbital degrees of freedom and the lattice which cannot be fully attributed to the structural deformation arising from bond-length mismatch. The TiO6 octahedra in this series are all irregular with the shape of the distortion depending on the RE ionic radius. These octahedron distortions vary more strongly with temperature than the tilt and rotation angles. Around the Ti magnetic ordering all compounds exhibit strong anomalies in the thermal-expansion coefficients, these anomalies exhibit opposite signs for the antiferromagnetic and ferromagnetic compounds. Furthermore the strongest effects are observed in the materials close to the magnetic cross-over from antiferromagnetic to ferromagnetic order.

References in corpus (20)

• Mott transition and suppression of orbital fluctuations in orthorhombic 3$d^1$ perovskites
• Orbital order and fluctuations in Mott insulators
• Orbital liquid in three dimensional Mott insulator: $LaTi{O}_3$
• Crystal and magnetic structure of LaTiO3 : evidence for non-degenerate $t_{2g}$-orbitals
• How chemistry controls electron localization in 3d1 perovskites: A Wannier-function study
• Sign change of the Grueneisen parameter and magnetocaloric effect near quantum critical points
• Spin Dynamics and Orbital State in LaTiO_3
• Magnetic Order and Dynamics in an Orbitally Degenerate Ferromagnetic Insulator
• Order from disorder: Quantum spin gap in magnon spectra of LaTiO_3
• Evidence for Jahn-Teller distortions at the antiferromagnetic transition in LaTiO${}_3$
• Lattice Distortion and Magnetism of 3d-$t_{2g}$ Perovskite Oxides
• Determination of the orbital moment and crystal field splitting in LaTiO${}_3$
• Optical study of orbital excitations in transition-metal oxides
• Lattice Distortion and Magnetic Ground State of YTiO${}_3$ and LaTiO${}_3$
• The magnetic structure of the Jahn-Teller System LaTiO3
• Origin of G-type Antiferromagnetism and Orbital-Spin Structures in ${\mathrm{LaTiO}}_3$
• Temperature and magnetic field dependence of the lattice constant in spin-Peierls cuprate CuGeO_3 studied by capacitance dilatometry in fields up to 16 Tesla
• Heavy-Fermion Formation at the Metal-to-Insulator Transition in Gd${}_{1-x}$Sr${}_x$TiO${}_3$
• Structural aspects of metamagnetism in Ca_{2-x}Sr_{x}RuO_4 (0.2 < x < 0.5): field tuning of orbital occupation
• The spin-wave spectrum of the Jahn-Teller system LaTiO3

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• A New Line Defect in NdTiO3 Perovskite
• High-Pressure Laser Floating Zone Furnace
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• Spin resonance in EuTiO3 probed by time-domain GHz ellipsometry
• Superexchange Interactions in Orthorhombically Distorted Titanates RTiO3 (R= Y, Gd, Sm, and La)
• Uniaxial strain control of bulk ferromagnetism in rare-earth titanates
• Structural, magnetic, and electronic properties of GdTiO3 Mott insulator thin films grown by pulsed laser deposition
• Oxide 2D electron gases as a route for high carrier densities on (001) Si
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• Magnetic orders of LaTiO${}_3$ under epitaxial strain: a first-principles study
• Towards Mott design by $\delta$-doping of strongly correlated titanates
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• Realistic many-body approaches to materials with strong nonlocal correlations
• Magneto-Elastic Coupling to Coherent Acoustic Phonon Modes in Ferrimagnetic Insulator GdTiO${}_3$
• Response of the lattice across the filling-controlled Mott metal-insulator transition of a rare earth titanate
• Magnetic resonance as an orbital state probe
• Magnetism and electronic structure of ($001$)- and ($111$)-oriented LaTiO${}_3$ bilayers sandwiched in LaScO${}_3$ barriers
• Possible ferrimagnetism and ferroelectricity of half-substituted rare-earth titanate: a first-principles study on Y${}_{0.5}$La${}_{0.5}$TiO${}_3$
• Strain driven sequential magnetic transitions in strained GdTiO3 on compressive substrates: a first-principles study
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• Ferroelectricity-induced asymmetrical two-dimensional electron gas in superlattices consisteing of insulating GdTiO3 and ferroelectric BaTiO3
• Magnetic resonance study of rare-earth titanates