Magnetic memory effect in hollandite-type α-K MnO2 monocrystalline nanorods
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Perović, Marija M.
Article (Published version)
© 2019 Elsevier B.V.
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Memory effect due to spin-glass state below about 20 K has been illustrated in the hollandite-type α-KxMnO2 monocrystalline nanorods by systematic magnetization measurements including temperature- and time-dependent magnetization curves in low fields. In this work, we succeeded in writing, reading, and deleting 8-bits digital information in the investigated system. These results show that α-KxMnO2 is a good candidate material for a thermal memory cell. The phenomenological droplet model was used in the description of the observed memory effect, whose origin in α-KxMnO2 is associated with bulk properties, doping and frustration. © 2019 Elsevier B.V.
Keywords:Manganese dioxide / Nanorods / Spin-glasses / Memory effect
Source:Journal of Alloys and Compounds, 2020, 820, 153406-
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