Nanoscale magnetic bubbles in Nd2Fe14B at room temperature
Research output: Contribution to journal › Research article › Contributed › peer-review
Contributors
Abstract
The increasing demand for computer data storage with a higher recording density can be addressed by using smaller magnetic objects, such as bubble domains. Small bubbles predominantly require a strong saturation magnetization combined with a large magnetocrystalline anisotropy to resist self-demagnetization. These conditions are well satisfied for highly anisotropic materials. Here, we study the domain structure of thin Nd2Fe14B lamellae. Magnetic bubbles with a minimum diameter of 74 nm were observed at room temperature, approaching even the range of magnetic skyrmions. The stripe domain width and the bubble size are both thickness dependent. Furthermore, a kind of bubble was observed below the spin-reorientation transition temperature that combine bubbles with opposite helicity. In this paper, we reveal Nd2Fe14B to be a good candidate for a high-density magnetic bubble-based memory.
Details
Original language | English |
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Article number | 064426 |
Pages (from-to) | 1-8 |
Number of pages | 8 |
Journal | Phys. Rev. B |
Volume | 105 |
Issue number | 6 |
Publication status | Published - 18 Feb 2022 |
Peer-reviewed | Yes |
External IDs
unpaywall | 10.1103/physrevb.105.064426 |
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Mendeley | f7505467-2c08-3f25-967a-48e2d43ee166 |
WOS | 000761167800005 |
Scopus | 85126042777 |
Bibtex | he2022nanoscale |
ORCID | /0000-0002-4859-4325/work/142253289 |