| Autor: |
Hergett, Waldemar, Jonak, Martin, Billert, Fabian, Werner, Johannes, Sauerland, Sven, Koo, Changhyun, Neef, Christoph, Klingeler, Rüdiger |
| Rok vydání: |
2019 |
| Předmět: |
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| Zdroj: |
J. Magn. Magn. Mat. 477, 1-3 (2019) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.jmmm.2019.01.032 |
| Popis: |
A macroscopic single crystal of $\gamma_{\rm II}$-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 $T_{\rm m} = 28$~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. |
| Databáze: |
arXiv |
| Externí odkaz: |
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