Correlation between the Dzyaloshinskii-Moriya interaction and spin-mixing conductance at an antiferromagnet/ferromagnet interface
- Univ. of California, Santa Barbara, CA (United States). Dept. of Electrical and Computer Engineering; DOE EFRC SHINES
- Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics, Inst. of Physics
- Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering
- Univ. of California, Santa Barbara, CA (United States). Dept. of Electrical and Computer Engineering
- Univ. of Texas, Austin, TX (United States). Dept. of Physics, Center for Complex Quantum Systems
- Univ. of California, Los Angeles, CA (United States). Dept. of Electrical Engineering, and Dept. of Physics
The rich interaction phenomena at antiferromagnet (AFM)/ferromagnet (FM) interfaces are key ingredients in AFM spintronics, where many underlying mechanisms remain unclear. Here in this paper we report on a correlation observed between the interfacial Dzyaloshinskii-Moriya interaction (DMI) DS and effective spin-mixing conductance g$$↑↓\atop{eff}$$ at the IrMn/CoFeB interface. Both DS and g$$↑↓\atop{eff}$$ are quantitatively determined with Brillouin light-scattering measurements, and increase with IrMn thickness in the range of 2.5 ~ 7.5 nm. Such correlation likely originates from the AFM-states-mediated spin-flip transitions in the FM, which promote both the interfacial DMI and spin pumping effect. Our findings provide deeper insight into the AFM-FM interfacial coupling for future spintronic design.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Spins and Heat in Nanoscale Electronic Systems (SHINES); Univ. of California, Riverside, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- SC0012670
- OSTI ID:
- 1474502
- Journal Information:
- Physical Review B, Journal Name: Physical Review B Journal Issue: 10 Vol. 98; ISSN 2469-9950; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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