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    Research

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    Currently  Research Topics 

     

    1. Spin-transfer torque and spin-orbit torque nano-oscillators and its’ nonlinear spin-wave dynamics

    2. Spin-torque-driven dynamics of nontrivial magnetic texture (magnetic Vortex, Skyrmion, Meron) in magnetic devices and thin films

    3. Highly efficient interconversion between spin and charge in various emerging strong spin-orbit coupling materials

    4. Neuromorphic computing by using abundant nonlinear dynamics of spintronic devices with excellent plasticity and scalability

    5. Super-spintronics in superconductor and ferromagnet hybrid structures

    6. Strong coupling among phonons, photons and magnons in magnetic hybrid systems.

     

     

    Research Project Grants

    1. Research and Innovation Project Supported by Jiangsu Province Key Laboratory

    2. Start-up and Innovation Talent Projects by Nanjing University

    3. Thousand Talents Program for Distinguished Young Scholars

    4. Science and Technology Support Project of Jiangsu Province

    5. Involved Project “Spintronics: Physics,Materials and Devices” Supported by National Key Research and Developement Program of CHINA (2016YFA0300803).

    6. the National Natural Science Foundation of China

     

    Introduction to Our Research

    Our research focuses on the engineering design and magnetotronsport investigation on nanomagnetic devices and advanced functional materials to develop new technologies that address next-generation data and energy storage challenges. The main goal of the research is to design, develop and optimize the spin-transfer torque magnetic random-access memory (STT-MRAM) and spin-transfer nano-oscillator (STNO) based on nanomagnetic devices and spintronic materials.

    Nano-scale magnetic tunnel junction (MTJ), spin valve GMR, magnetic domain wall racetrack memory, spin Hall nano-oscillator and nano-scale non-trivial magnetic textures have huge potential application in ultracompact data storage and processing, and have been intensively studying in the field of nanomagnetism and spintronics. Besides the conventional magnetic multilayer structures based MTJ and GMR, the novel spintronic materials, interfaces, architectures and new methods for spin-current generation are expanding the territory of spintronics to nonmagnetic materials such as spin Hall materials (Pt, Ta, W et al), topological insulators, superconductors et al.
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    We will concentrate mainly on the following aspects:

    (i) Pure spin current generation by spin Hall effect and spin Hall nano-oscillator (SHNO)

    Picture3_2(ii)To improve MR and reliability of spin devices based on MTJ and GMR structures by optimizing film growth conditions and devices nano-fabrication processes and spin transport quantum effects.
    (iii) Electric field effect on current-induced effect magnetic field (spin-orbit effect) and spin field effect transistor.
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    (iv) To develop architectures and new methods for spin-current generation such as non-local spin injection.
    b09e57f4402b170b7b6de2fd2da52f17
    (v) To explore and develop non-trivial topological spin textures (Skyrmion, Vortex, Meron) by engineering the interface effects (DMI, PMA, Rashba, SHE) in bilayer or multilayers film with strong spin-orbit coupling and micromagnetic simulation.
    af08956dc5242f6de29e2bb9949d2f6f(vi) Neuromorphic computing with nanoscale spintronic devices (Spin-torque nano-oscillators; Domain-wall memristors; Resistance memristors; Neuromorphic chip)
    (vii) To explore the novel spintronic materials, hybrid structures, and new spin effect for achieving high efficient spin current generation and transfer (Superconductors/Ferromagnet, topological insulator,graphene, metal dichalcogenides, Valley Pseudospin).
    superspintronics_2      8579f6b8a3f9997a1fe6d18396955841
    (viii) Design and build the special scientific tools and equipment focused on the electrical detection and manipulation of freedom degrees (spin, charge) of electron under microscale and nanoscale.