论文标题
在CETE $ _ {3} $薄膜中观察到具有磁性磁滞的量子振荡
Quantum oscillations with magnetic hysteresis observed in CeTe$_{3}$ thin films
论文作者
论文摘要
我们已经在CETE $ _ {3} $薄膜中进行了磁转运测量，低至$ 0.2〜 {\ rm k} $。众所周知，CETE $ _ {3} $在$ t _ {\ rm n1} \大约3〜 {\ rm k} $和$ t _ {\ rm n2} \ of 1〜1〜 {\ rm k k} $。在$ 4〜 {\ rm k} $上观察到了明显的Shubnikov-De-Haas（SDH）振荡，证明了该材料中强的二维性质。 $ t _ {\ rm n2} $以下，SDH振荡具有两个频率，表明由于第二个磁过渡，费米表面可能会稍微调节。我们还观察到$ t _ {\ rm n1} $的SDH振荡中的磁性磁滞。尤其是，仅当磁场从足够高的场（超过$ 2〜 {\ rm t} $）扫除到零字段时，磁敏度的磁势率$ b \ of $ b \ of 0.6〜 {\ rm t} $。
We have performed magnetotransport measurements in CeTe$_{3}$ thin films down to $0.2~{\rm K}$. It is known that CeTe$_{3}$ has two magnetic transitions at $T_{\rm N1} \approx 3~{\rm K}$ and $T_{\rm N2} \approx 1~{\rm K}$. A clear Shubnikov-de-Haas (SdH) oscillation was observed at $4~{\rm K}$, demonstrating the strong two-dimensional nature in this material. Below $T_{\rm N2}$, the SdH oscillation has two frequencies, indicating that the Fermi surface could be slightly modulated due to the second magnetic transition. We also observed a magnetic hysteresis in the SdH oscillation below $T_{\rm N1}$. Especially, there is a unique spike in the magnetoresistance at $B \approx 0.6~{\rm T}$ only when the magnetic field is swept from a high enough field (more than $2~{\rm T}$) to zero field.
