Low-temperature magnetic behavior on the triangular lattice in hexagonal Ba3Tb(BO3)3

IF 3.7 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review B Pub Date : 2025-02-18 DOI:10.1103/physrevb.111.054427

Nicola D. Kelly, M. Duc Le, Denis Sheptyakov, Camilla Tacconis, Cheng Liu, Gavin B. G. Stenning, Peter J. Baker, Siân E. Dutton

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引用次数: 0

Abstract

The hexagonal polymorph of Ba3Tb(BO3)3 contains Tb3+ ions on a quasi-2D triangular lattice, resulting in geometric magnetic frustration. Powder samples of Ba3Tb(BO3)3 have been investigated using specific heat, powder neutron diffraction (PND), inelastic neutron scattering (INS), and muon-spin relaxation spectroscopy (μSR). No long-range magnetic ordering is observed down to the lowest measured temperatures of 75 mK in PND and specific heat data and 1.5 K in the μSR data. Modeling the INS spectrum using a point charge model suggests that the ground state is a singlet with a low-lying doublet on each of the two crystallographically independent Tb3+ sites and that both the Tb ions display weak XY single-ion anisotropy.

Published by the American Physical Society

2025

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来源期刊

Physical Review B 物理-物理：凝聚态物理

CiteScore

6.70

自引率

32.40%

发文量

审稿时长

3.0 months

期刊介绍： Physical Review B (PRB) is the world’s largest dedicated physics journal, publishing approximately 100 new, high-quality papers each week. The most highly cited journal in condensed matter physics, PRB provides outstanding depth and breadth of coverage, combined with unrivaled context and background for ongoing research by scientists worldwide. PRB covers the full range of condensed matter, materials physics, and related subfields, including: -Structure and phase transitions -Ferroelectrics and multiferroics -Disordered systems and alloys -Magnetism -Superconductivity -Electronic structure, photonics, and metamaterials -Semiconductors and mesoscopic systems -Surfaces, nanoscience, and two-dimensional materials -Topological states of matter