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: Voltage-Controlled Antiferromagnetism in Magnetic Tunnel Junctions.
    Author: Xu M, Li M, Khanal P, Habiboglu A, Insana B, Xiong Y, Peterson T, Myers JC, Ortega D, Qu H, Chien CL, Zhang W, Wang JP, Wang WG.
    Journal: Phys Rev Lett; 2020 May 08; 124(18):187701. PubMed ID: 32441982.
    Abstract:
    We demonstrate a voltage-controlled exchange bias effect in CoFeB/MgO/CoFeB magnetic tunnel junctions that is related to the interfacial Fe(Co)O_{x} formed between the CoFeB electrodes and the MgO barrier. The unique combination of interfacial antiferromagnetism, giant tunneling magnetoresistance, and sharp switching of the perpendicularly magnetized CoFeB allows sensitive detection of the exchange bias. We find that the exchange bias field can be isothermally controlled by magnetic fields at low temperatures. More importantly, the exchange bias can also be effectively manipulated by the electric field applied to the MgO barrier due to the voltage-controlled antiferromagnetic anisotropy in this system.
    [Abstract] [Full Text] [Related] [New Search]