Synthesis and Magnetism of a Li${}_2$FeSiO${}_4$ Single Crystal

Abstract

A macroscopic single crystal of ${\gamma }_{\mathrm{II}}$-Li\(_2\)FeSiO\(_4\) has been grown by means of the high-pressure optical floating-zone technique. Static magnetic susceptibility $\chi$ implies that the tetrahedrally-coordinated Fe${}^{2+}$ ions are in the high-spin, $S=2$, state. While a sharp decrease in $\chi$ implies long-range antiferromagnetic order below \tn\ = 17.0(5)~K, the presence of a broad maximum at $T_{\mathrm{m}}=28$~K suggests quasi-low-dimensional magnetism. Applying magnetic fields along the easy magnetic $a$-axis yields additional contributions to the susceptibility $\partial M/\partial B$ and magnetostriction for $B>7$~T, and an anomaly at $B\approx 14.8$~T.

References in corpus (1)

• High-pressure optical floating-zone growth of Li(Mn,Fe)PO${}_4$ single crystals

Cited by in corpus (3)

• Challenges in the crystal growth of Li2FeSiO4
• Quasi-two-dimensional magnetism and antiferromagnetic ground state in Li${}_2$FeSiO${}_4$
• Critical behavior and evidence of dimensional crossover in quasi-two-dimensional Li${}_2$FeSiO${}_4$