半金属Co $_{2}$ CrAl Heusler合金的巨抗磁性
Giant diamagnetism in half-metallic Co$_{2}$CrAl Heusler alloy
摘要：
在低于一定温度（$T_z$）的情况下，观察到Co $_{2}$ CrAl化合物在体相和薄膜中的巨抗磁性。高于$T_z$，化合物表现为普通铁磁体。由于半金属性质，抗磁性取向可能由朗道抗磁性引发，并且抗磁性的钉扎被特殊的电子结构所保持。
英文摘要：
A giant diamagnetism in the Co$_{2}$CrAl compounds, in both bulk and thin film, below a certain temperature ($T_z$) was observed. Above $T_z$, the compound behaves as an ordinary ferromagnet. The diamagnetic alignment might be initiated by the Landau diamagnetism because of the half-metallic properties and the pinning of the diamagnetism is preserved by the peculiar electronic structures.
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