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Updated: Jun 14, 2026

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芯片上的平面元表面用于具有极大增强灵敏度的磁传感器

Aleix Barrera1, Emile Fourneau2, Natanael Bort-Soldevila3

  • 1Institut de Ciència de Materials de Barcelona, ICMAB-CSIC, Campus de la UAB, Bellaterra 08193, Spain.

ACS nano
|March 6, 2025
PubMed
概括

工程磁性超材料,特别是永久合金 (Py) 超表面,可以显著提高 (Co) 磁传感器的灵敏度. 这一突破为磁性功能设备提供了两级的改进.

关键词:
磁流集中器的磁流集中器磁传感器 磁传感器超材料是指金属材料.metasurfaces 是一个表层.微磁主义是微磁主义.

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Magnetic Susceptibility and Permeability01:31

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In linear magnetic materials, like paramagnets and diamagnets, magnetization is proportional to the magnetic field intensity. The constant of proportionality, a dimensionless number, is called magnetic susceptibility. The value of the susceptibility depends on the type of material.
When diamagnetic materials are placed under an external magnetic field, the moments opposite to the field are induced. Hence, the susceptibility for diamagnets has a minimal negative value of 10-5–10-6. Since...