Quantum oscillations of bloch point in cylindrical ferromagnetic nanowire: Quasiclassical approach

IF 4.4 2区物理与天体物理 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Results in Physics Pub Date : 2025-04-08 DOI:10.1016/j.rinp.2025.108245

A.B. Shevchenko , O.V. Oliinyk , A.V. Minitskyi , M.Yu. Barabash

引用次数: 0

Abstract

Quantum oscillations of a Bloch point (BP) in the domain wall of a cylindrical ferromagnetic nanowire are investigated using the quasiclassical approximation. The conditions for these oscillations in an external uniform magnetic field are determined. It is shown that quantum oscillations of BP in the domain walls of nickel and iron nanowires can be observed at temperatures of liquid helium. The evolution of the BP wave packet over time is investigated. The characteristic time of its transformation into beats, which form because of superposition of two wave functions with equal amplitudes and close energies and wave numbers, is determined. The train of this wave provides the transfer of BP energy. The obtained results can find practical application in micro − and nanotechnologies based on the quantum properties of BP.

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圆柱形铁磁纳米线中斑点点的量子振荡：准经典方法

利用准经典近似研究了圆柱形铁磁纳米线畴壁中布洛赫点的量子振荡。确定了这些振荡在外均匀磁场中的条件。结果表明，在液氦温度下，镍和铁纳米线的畴壁中存在BP的量子振荡。研究了BP波包随时间的演变。确定了由两个振幅相等、能量和波数相近的波函数叠加而形成的拍的特征时间。这个波的序列提供BP能量的传递。所得结果可以在基于BP量子特性的微纳米技术中找到实际应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Results in Physics MATERIALS SCIENCE, MULTIDISCIPLINARYPHYSIC-PHYSICS, MULTIDISCIPLINARY

CiteScore

8.70

自引率

9.40%

发文量

754

审稿时长

50 days

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