These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Room-temperature spin-valve devices without spacer layers based on Fe3GaTe2 van der Waals homojunctions.
    Author: Deng Y, Zhu K, Wang M, Hu T, Wang Y, Lei B, Chen X.
    Journal: Nanoscale; 2024 Aug 22; 16(33):15793-15800. PubMed ID: 39118536.
    Abstract:
    In the advancement of spintronic devices, spin valves play a critical role, especially in the sensor and information industries. The emergence of two-dimensional (2D) van der Waals (vdW) magnetic materials has opened up new possibilities for the development of high-performance spin-valve devices. However, the Curie temperature (TC) of most 2D vdW ferromagnets falls below room temperature, resulting in a scarcity of room-temperature spin-valve devices. In this study, we have prepared spin-valve devices without spacer layers based on Fe3GaTe2 vdW homojunctions and observed notable two-state magnetoresistance (MR) from 2 K to room temperature. A maximum MR of 50% surpasses some heterojunctions with spacer-layer structures and it remains 0.6% at room temperature. Furthermore, spin-valve devices exhibit favorable ohmic contact and low operating current as low as 10 nA. These findings demonstrate the enormous potential of Fe3GaTe2-based room-temperature devices and the simplified two-layer structure shows significant prospect in the context of the ongoing trend towards miniaturization of contemporary devices.
    [Abstract] [Full Text] [Related] [New Search]