Abstract
We report on high magnetic field magnetization, magnetic torque, specific-heat, and $^{51}\text{V}$ NMR measurements on ${\text{Bi}}_{4}{\text{Cu}}_{3}{\text{V}}_{2}{\text{O}}_{14}$ single crystals, which display a characteristic chain structure along the crystallographic $a$ axis. The system undergoes a magnetic phase transition below 5.5 K. For the magnetic field $H\ensuremath{\parallel}a$, the data reveal a metamagnetic transition from an antiferromagnetic (AFM) to a weak-ferromagnetic (WFM) state at ${H}_{c}\ensuremath{\simeq}7.6\text{ }\text{T}$. Based on our results, the low-temperature magnetic phase diagram is determined. Furthermore, the magnetization measurements along with the NMR results suggest that the weak ferromagnetism along the $a$ axis is possibly due to a canted AFM spin structure with two distinct magnetic sublattices.
Published Version
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