Magnetic Properties of Spinel FeCr$_{2}$S$_{4}$ in High Magnetic Field

Details Magnetic Properties of Spinel FeCr$_{2}$S$_{4}$ in High Magnetic Field Magnetic Properties of Spinel FeCr$_{2}$S$_{4}$ in High Magnetic Field

2011-06-07

arxiv.org/abs/1106.1248v1

Physics

Condensed Matter

Strongly Correlated Electrons

11 pages, 5 figures

Scientific paper

We studied temperature and magnetic field dependence of magnetization, $M(T)$ and $M(B)$, on thiospinel FeCr$_{2}$S$_{4}$. We observed a step-like anomaly at $T_{OO} \sim$ 9 K for $M$($T$) attributed to an orbital order transition in magnetic field 0 $< B \leq$ 7 T. Furthermore, also for $M$($B$), an step-like anomaly appears at $B_{c} \sim$ 5.5 T below $T_{OO}$. This suggests an existence of a magnetic phase boundary at $B_{c}$ in $T < T_{OO}$. Because the anomaly at $B_{c}$ of $M(B)$ exists in the orbital ordered phase, the spin structure of FeCr$_{2}$S$_{4}$ in $T\ <\ T_{OO}$ is strongly coupled with the lattice of the system.

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