Quantum spin configurations in Tb2Ti2O7
S. H. Curnoe
TL;DR
This paper classifies the low-energy spin states of Tb3+ ions in Tb2Ti2O7, analyzes degeneracy lifting, and uses neutron scattering data to identify the ground state, advancing understanding of its magnetic properties.
Contribution
It provides a detailed classification of collective angular momentum states and links theoretical predictions with experimental neutron scattering results.
Findings
Degeneracy lifting due to exchange interactions is analyzed.
Diffuse neutron scattering patterns are calculated for different states.
The ground state is identified through comparison with experimental data.
Abstract
Low energy collective angular momentum states of the Tb3+ ions in Tb2Ti2O7 are classified according to the irreducible representations of the octahedral point group. Degeneracy lifting due to the exchange interaction is discussed. Diffuse neutron scattering intensity patterns are calculated for each collective angular momentum state and the ground state is inferred by comparing to experiment.
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