We have already prepared a thin permanent magnet with the thickness of sub-millimeter by obtaining magnet powders using a pulsed laser deposition (PLD) method. In the article, the PLD followed by a flash annealing enabled us to deposit isotropic Pr–Fe–B magnet powders with coercivity $(H_{\mathrm {cj}})> 1000$ kA/m on a stainless thin shaft applicable to a miniaturized motor. Observation on the surface of Pr–Fe–B magnets and evaluation on the mechanical behavior were carried out. Since the surface of a Pr–Fe–B magnet was coated by a Pr oxide through an annealing process, their magnetic properties did not degrade after one year. We also confirmed that the Pr–Fe–B magnet has the possibility to be applied to a micro-magnetization process. It was clarified that the powder technology using the PLD is useful to propose a thin magnet applicable to a next-generation small motor.

中文翻译：

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脉冲激光制备和沉积Pr-Fe-B永磁粉末

我们已经通过使用脉冲激光沉积（PLD）方法获得磁粉制备了亚毫米厚度的薄永磁体。在这篇文章中，PLD 和闪光退火使我们能够在适用于小型化电机。对 Pr-Fe-B 磁体的表面进行了观察，并对机械性能进行了评估。由于 Pr-Fe-B 磁体的表面通过退火过程涂覆有 Pr 氧化物，因此它们的磁性能在一年后不会降低。我们还确认了 Pr-Fe-B 磁体有可能应用于微磁化过程。