Understanding the electronic behaviour of MXene (Ti<sub>3</sub>C<sub>2</sub>) and Fe based SCO heterostructure

ORAL

Abstract

The family of 2D layered materials is intensely explored due to the extraordinary electronic and optical properties. Similar to 2D materials, spin crossover molecules (SCO) have gained great attention for the development of next-generation memory devices1 due to their bistable switching nature. The heterostructure of the SCO and the inorganic 2D materials2,3 paves a way to lower impedance in a device structure where the spin crossover thin film resistance might be very large. In this study, we make an effort to understand the electronic properties of [Fe{H2B(pz)2}2(bipy)] – MXene (Ti3C2) heterostructures by investigating the charge transfer between these materials using X-ray magnetic dichroism (XMCD) spectroscopy. Temperature dependent X-ray absorption spectroscopy (XAS) has been used to elucidate the spin locking property of the system which is crucial for a nonvolatile device.

*This research was supported by the National Science Foundation through NSF-DMR 2003057.

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Publication: (1) Ekanayaka, T. K.; Hao, G.; Mosey, A.; Dale, A. S.; Jiang, X.; Yost, A. J.; Sapkota, K. R.; Wang, G. T.; Zhang, J.; N'Diaye, A. T.; Marshall, A.; Cheng, R.; Naeemi, A.; Xu, X.; Dowben, P. A. Nonvolatile Voltage Controlled Molecular Spin-State Switching for Memory Applications. Magnetochemistry 2021, 7 (3), 37. https://doi.org/10.3390/magnetochemistry7030037.
(2) Senthil Kumar, K.; Šalitroš, I.; Boubegtiten-Fezoua, Z.; Moldovan, S.; Hellwig, P.; Ruben, M. A Spin Crossover (SCO) Active Graphene-Iron( II ) Complex Hybrid Material. Dalton Trans. 2018, 47 (1), 35–40. https://doi.org/10.1039/C7DT03623J.
(3) Torres-Cavanillas, R.; Morant-Giner, M.; Escorcia-Ariza, G.; Dugay, J.; Canet-Ferrer, J.; Tatay, S.; Cardona-Serra, S.; Giménez-Marqués, M.; Galbiati, M.; Forment-Aliaga, A.; Coronado, E. Spin-Crossover Nanoparticles Anchored on MoS2 Layers for Heterostructures with Tunable Strain Driven by Thermal or Light-Induced Spin Switching. Nat. Chem. 2021, 13 (11), 1101–1109. https://doi.org/10.1038/s41557-021-00795-y.

Presenters

  • Gauthami Viswan

    • University of Nebraska - Lincoln

Authors

  • Gauthami Viswan

    • University of Nebraska - Lincoln

  • Jared Phillips

    • Indiana University-Purdue University Indianapolis

  • Mohammad Zaid Zaz

    • University of Nebraska - Lincoln

  • Wai Kiat Chin

    • University of Nebraska - Lincoln

  • Jackson Alexander Oles

    • Indiana University-Purdue University Indianapolis

  • Joseph Rafael Soruco

    • Indiana University-Purdue University Indianapolis

  • Elliot T Barnett

    • Indiana University-Purdue University Indianapolis

  • Ruihua Cheng

    • Indiana University - Purdue University Indianapolis

  • Peter A Dowben

    • University of Nebraska - Lincoln