Large magnetic Bragg peak enhancement by ultrasound injection on FeTiO3
FeTiO3 is an ilmenite antiferromagnetic insulator containing Fe2+, with two-dimensional ferromagnetic honeycomb layers antiferromagnetically stacked along the c-axis. The magnetic Bragg peak intensity is found to be enhanced under the application of ultrasound up to 300% in FeTiO3 crystals at low temperatures. The pronounced enhancement is attributed to strong spin–lattice coupling of Fe2+ in FeTiO3. This effect disappears above 35 K, suggesting that the energy splitting of Fe2+ levels induced by spin–orbit coupling is about 35 K. This finding suggests a promising pathway toward high efficiency acoustic spin pumping.
Authors
- Shin‐ichi Shamoto (ORCID: https://orcid.org/0000-0001-5496-9640)
- Tetsuya Yokoo (ORCID: https://orcid.org/0000-0003-4488-3629)
- Mitsuhiro Akatsu (ORCID: https://orcid.org/0000-0002-5672-5612)
- Jae-Ho Chung (ORCID: https://orcid.org/0000-0002-8472-9012)
- Kwangwoo Shin
- Jun’ichi Ieda (ORCID: https://orcid.org/0000-0001-6069-8533)
- Masaki Imai
- Daichi Ueta (ORCID: https://orcid.org/0000-0001-6617-2356)
- L. J. Chang (ORCID: https://orcid.org/0000-0002-1649-8670)
- Amer Mahmoud Amer Hassan (ORCID: https://orcid.org/0009-0008-3825-4870)
- Yuichi Nemoto
Institutions
- Japan Atomic Energy Agency (JP)
- University of Seoul (KR)
- High Energy Accelerator Research Organization (JP)
- University of Tsukuba (JP)
- Korea University (KR)
- The Graduate University for Advanced Studies, SOKENDAI (JP)
- Japan Proton Accelerator Research Complex (JP)
- Egyptian Atomic Energy Authority (EG)
- National Institutes for Quantum Science and Technology (JP)
- Korea Basic Science Institute (KR)
- Niigata University (JP)
- National Cheng Kung University (TW)
Publication Details
- Journal
- Applied Physics Letters
- Published
- 2025-09-29
- DOI
- https://doi.org/10.1063/5.0273424
- Primary Topic
- Magnetic properties of thin films
- Type
- article
- Field-Weighted Citation Impact
- 0.00