Volume 133, Number 1, January 2021
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||05 March 2021|
Designing reversible multi-level resistance states in a half-doped manganite
CMP Division, Saha Institute of Nuclear Physics - Kolkata 700064, India
Received: 30 September 2020
Accepted: 7 December 2020
We design reversible multi-level resistance states in a half-doped charge-ordered manganite, (SCSMO). By exploiting the electronic phase separation in SCSMO at 10 K, we show that the system can be stabilized into several metastable states, against thermal cycling, up to 62 K. The magnetization and the resistivity remain unaltered in each metastable states during the thermal cycling. Monte Carlo calculations using a two-band double-exchange model, including super-exchange, electron-phonon coupling, and quenched disorder, show that the system freezes into a phase-separated metastable state due to the disorder during the thermal cycling. We outline pathway to control the multi-level switching between four reversible metastable states. Our results may open the door for future investigations to engineer memory devices based on multi-level resistance switching using phase-separated transition metal oxides.
PACS: 75.47.-m – Magnetotransport phenomena; materials for magnetotransport
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