Realization of Quantum Dipoles in Triangular Lattice Crystal Ba3Yb(BO3)3

TL;DR

This paper explores the low-temperature magnetic properties of Ba3Yb(BO3)3, revealing it as a potential quantum dipole lattice with dominant dipole-dipole interactions and no long-range magnetic order down to 56 mK.

Contribution

It provides experimental evidence for a quantum dipole lattice state in a triangular lattice compound, highlighting the role of dipole-dipole interactions over exchange interactions.

Findings

No long-range order observed down to 56 mK

Magnetization and heat capacity suggest quantum dipole behavior

Dipole-dipole interactions dominate over exchange interactions

Abstract

We investigate the thermodynamic properties of the ytterbium-based triangular lattice compound Ba3Yb(BO3)3. The results demonstrate the absence of any long-range ordering down to 56 mK. Analysis of the magnetization, susceptibility and specific heat measurements suggests that Ba3Yb(BO3)3 may realize a S = 1/2 quantum dipole lattice, in which the dominant interaction is the long range dipole-dipole coupling on the geometrically frustrated triangular lattice, and exchange interactions are subdominant or negligible.