Exploring room-temperature transport of single-molecule magnet-based molecular spintronics devices using the magnetic tunnel junction as a device platform

Tyagi, Pawan; Riso, Christopher; Amir, Uzma; Rojas-Dotti, Carlos; Martínez-Lillo, Jose

doi:10.1039/C9RA09003G

Title: Exploring room-temperature transport of single-molecule magnet-based molecular spintronics devices using the magnetic tunnel junction as a device platform

Journal Article · Tue Mar 31 00:00:00 EDT 2020 · RSC Advances

DOI:https://doi.org/10.1039/C9RA09003G· OSTI ID:1607829

^[1]; Riso, Christopher ^[1]; Amir, Uzma ^[1]; Rojas-Dotti, Carlos ^[2];

^[2]

Department of Mechanical Engineering, University of the District of Columbia, Washington DC-20008, USA
Instituto de Ciencia Molecular (ICMol), Universitat de València, 46980 Paterna, Spain

A device architecture utilizing a single-molecule magnet (SMM) as a device element between two ferromagnetic electrodes may open vast opportunities to create novel molecular spintronics devices. Here, we report a method of connecting an SMM to the ferromagnetic electrodes. We utilized a nickel (Ni)–AlOx–Ni magnetic tunnel junction (MTJ) with the exposed side edges as a test bed. In the present work, we utilized an SMM with a hexanuclear [Mn₆(μ₃-O)₂(H₂N-sao)₆(6-atha)₂(EtOH)₆] [H₂N-saoH = salicylamidoxime, 6-atha = 6-acetylthiohexanoate] complex that is attached to alkane tethers terminated with thiols. These Mn-based molecules were electrochemically bonded between the two Ni electrodes of an exposed-edge tunnel junction, which was produced by the lift-off method. Here, the SMM-treated MTJ exhibited current enhancement and transitory current suppression at room temperature. Monte Carlo simulation was utilized to understand the transport properties of our molecular spintronics device.

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Research Organization:: University of the District of Columbia, Washington, DC (United States)

Sponsoring Organization:: USDOE National Nuclear Security Administration (NNSA)

Grant/Contract Number:: NA0003945; FOA-0003945

OSTI ID:: 1607829

Alternate ID(s):: OSTI ID: 1638592

Journal Information:: RSC Advances, Journal Name: RSC Advances Vol. 10 Journal Issue: 22; ISSN 2046-2069

Publisher:: Royal Society of ChemistryCopyright Statement

Country of Publication:: United Kingdom

Language:: English

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Cited by: 19 works

Citation information provided by
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