Magnetic Nanoplatelet-Based Spin Memory Device Operating at Ambient Temperatures

Guy Koplovitz, Darinka Primc, Oren Ben Dor, Shira Yochelis, Dvir Rotem, Danny Porath, Yossi Paltiel*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

46 Scopus citations


There is an increasing demand for realizing a simple Si based universal memory device working at ambient temperatures. In principle, nonvolatile magnetic memory can operate at low power consumption and high frequencies. However, in order to compete with existing memory technology, size reduction and simplification of the used material systems are essential. In this work, the chiral-induced spin selectivity effect is used along with 30–50 nm ferromagnetic nanoplatelets in order to realize a simple magnetic memory device. The vertical memory is Si compatible, easy to fabricate, and in principle can be scaled down to a single nanoparticle size. Results show clear dual magnetization behavior with threefold enhancement between the one and zero states. The magnetization of the device is accompanied with large avalanche like noise that is ascribed to the redistribution of current densities due to spin accumulation inducing coupling effects between the different nanoplatelets.

Original languageAmerican English
Article number1606748
JournalAdvanced Materials
Issue number17
StatePublished - 3 May 2017

Bibliographical note

Funding Information:
Y.P. acknowledges support from the Volkswagen Foundation (VW 88 367), from the 419 Israel Science Foundation (ISF grant no. 1248/10), and from the MOS Israel. D.P. acknowledges support from the Israel Science Foundation (ISF grant 1589/14) and from the Minerva Centre for biohybrid complex systems. D.P. thanks the Etta and Paul Schankerman Chair of Molecular Biomedicine.

Publisher Copyright:
© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim


  • magnetic memory
  • magnetic nanoparticles
  • molecular electronics
  • self-assembled monolayers
  • spintronics


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