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Updated: Jul 13, 2025

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在反铁磁的迪拉克半金属的多波向量电荷密度波形状态中的巨大磁阻

Ratnadwip Singha1, Kirstine J Dalgaard1, Dmitry Marchenko2

  • 1Department of Chemistry, Princeton University, Princeton, NJ 08544, USA.

Science advances
|October 13, 2023
PubMed
概括

研究人员在迪拉克半金属CeSbTe中发现了巨大的负磁阻,这种现象通常在矿中见到. 在被电子杂材料中的这一发现为了解和利用这种效应在先进的电子设备中开辟了新的途径.

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Paramagnets are materials with unpaired electrons that possess a finite magnetic moment. In the absence of a magnetic field, these moments are randomly oriented, and thus the net moment is zero. Under an external field, a torque acting on the moments tends to align them along the field's direction. However, the random thermal motion of electrons produces a torque opposite to the external field and tries to disorient the moments. These two competing effects align only a few moments along the...
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The vector...
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Magnetic Susceptibility and Permeability

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.
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