标题： 磁介质体的磁悬浮增强与静磁表面共振 显示英文标题

标题： Magnetic levitation of metamaterial bodies enhanced with magnetostatic surface resonances

摘要： 我们提出，由负磁导率超材料构成的宏观物体可能在低频磁场中经历共振增强的磁力。 时间平均力的共振增强起源于磁静力表面共振（MSR），这与负介电常数粒子的静电共振类似，在光学中众所周知为表面等离子体共振。 我们将经典问题的均匀物体的MSR推广到包括各向异性超材料，并考虑各向异性最极端的情况，即磁导率在一个方向上为负，在其他方向上为正。 结果显示，由这种不定（双曲）介质制成的深亚波长物体表现出显著的磁偶极子共振，该共振与均匀或弱非均匀磁场强烈耦合，并提供磁力的显著增强，从而实现增强磁悬浮等应用。 显示英文摘要

摘要： We propose that macroscopic objects built from negative-permeability metamaterials may experience resonantly enhanced magnetic force in low-frequency magnetic fields. Resonant enhancement of the time-averaged force originates from magnetostatic surface resonances (MSR) which are analogous to the electrostatic resonances of negative-permittivity particles, well known as surface plasmon resonances in optics. We generalize the classical problem of MSR of a homogeneous object to include anisotropic metamaterials, and consider the most extreme case of anisotropy where the permeability is negative in one direction but positive in the others. It is shown that deeply subwavelength objects made of such indefinite (hyperbolic) media exhibit a pronounced magnetic dipole resonance that couples strongly to uniform or weakly inhomogeneous magnetic field and provides strong enhancement of the magnetic force, enabling applications such as enhanced magnetic levitation.