Magnetic Properties of Multifunctional $^7$LiFePO$_4$ under Hydrostatic Pressure
| Autor: | Miniotaite, Ugne, Forslund, Ola Kenji, Nocerino, Elisabetta, Elson, Frank, Palm, Rasmus, Matsubara, Nami, Ge, Yuqing, Khasanov, Rustem, Kobayashi, Genki, Sassa, Yasmine, Weissenrieder, Jonas, Pomjakushin, Vladimir, Andreica, Daniel, Sugiyama, Jun, Månsson, Martin |
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| Rok vydání: | 2022 |
| Předmět: | |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/1742-6596/2462/1/012049 |
| Popis: | LiFePO$_4$ (LFPO) is an archetypical and well-known cathode material for rechargeable Li-ion batteries. However, its quasi-one-dimensional (Q1D) structure along with the Fe ions, LFPO also displays interesting low-temperature magnetic properties. Our team has previously utilized the muon spin rotation ($\mu^+$SR) technique to investigate both magnetic spin order as well as Li-ion diffusion in LFPO. In this initial study we extend our investigation and make use of high-pressure $\mu^+$SR to investigate effects on the low-$T$ magnetic order. Contrary to theoretical predictions we find that the magnetic ordering temperature as well as the ordered magnetic moment increase at high pressure (compressive strain). Comment: 8 pages, 6 figures, submitted as a part of the International Conference on Muon Spin Rotation, Relaxation and Resonance 2022. Accepted Dec 2022 |
| Databáze: | arXiv |
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