Crystal field states ofTb3+in the pyrochlore spin liquidTb2Ti2O7from neutron spectroscopy

2015/01/20 by A. J. Princep, H. C. Walker, D. T. Adroja +2 · 2 citations
Chemistry · Materials Science · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Algorithm #Chemistry #Computer science #Crystal (programming language) #Crystallography #Field (mathematics) #Mathematics #Multiferroics and related materials #Nuclear materials and radiation effects #Physics #cond-mat.str-el

paper · pdf · doi:10.1103/physrevb.91.224430

published as Phys. Rev. B 91, 224430 (2015) · 7 pages, 3 figures

arxiv created 2015/01/20 · openalex publication_date 2015/06/29 · arxiv updated 2015/09/04 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We report time-of-flight neutron scattering measurements of the magnetic spectrum of Tb³⁺ in Tb₂Ti₂O₇. The data, which extend up to 120 meV and have calibrated intensity, enable us to consolidate and extend previous studies of the single-ion crystal field spectrum. We successfully refine a model for the crystal field potential in Tb₂Ti₂O₇ without relying on data from other rare-earth titanate pyrochlores, and we confirm that the ground state is a non-Kramers doublet with predominantly |\ifmmode±\else\textpm\fi4\ensuremath⟩ components. We compare the model critically with earlier models.

Citations

• Dynamically Induced Frustration as a Route to a Quantum Spin Ice State inTb2Ti2O7via Virtual Crystal Field Excitations and Quantum Many-Body Effects
• Recent advances in magnetic structure determination by neutron powder diffraction
• Field-Induced Order and Spin Waves in the Pyrochlore AntiferromagnetTb2Ti2O7
• Crystal field and magnetoelastic interactions in Tb2Ti2O7
• Understanding paramagnetic spin correlations in the spin-liquid pyrochloreTb2Ti2O7

Cited by

• Frustrated Quantum Rare-Earth Pyrochlores
• Quadrupole Order in the Frustrated PyrochloreTb2+xTi2−xO7+y