  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.
