Nanoscale freezing of the 2D spin liquid Pr$_{3}$Ga$_{5}$SiO$_{14}$

TL;DR

This study reports the growth and characterization of Pr3Ga5SiO14, revealing a gapless 2D spin liquid state at low temperatures and nanoscale spin order induced by magnetic fields, suggesting complex magnetic phenomena.

Contribution

It presents the first detailed analysis of the magnetic properties and field-induced spin ordering in Pr3Ga5SiO14, a distorted kagomé system, highlighting potential ferro-spin nematic phases.

Findings

No magnetic order down to 0.035 K

Presence of T^2 specific heat behavior indicating a gapless spin liquid

Field-induced nanoscale spin islands and reduced T^2 term

Abstract

In this letter, we report on the single crystal growth and physical characterization of the distorted kagom\'{e} system Pr$_3$Ga$_5$SiO$_{14}$. It is found that at zero magnetic field the system shows no magnetic order down to 0.035 K and exhibits a $T^{2}$ behavior for the specific heat at low temperatures, indicative of a gapless 2D spin liquid state. Application of an applied field induces nanoscale islands of ordered spins, with a concomitant reduction of the $T^{2}$ specific heat term. This state could be a possible ferro-spin nematic ordering stabilized out of an unusual spin liquid state.