In this letter we study magnetization reversal and transformation of magnetic domain structures in glass-covered magnetic microwires. Studies were performed using the magneto-optical Kerr effect technique in the presence of the combination of tension and torsion mechanical stresses. Formation and reversible transformations of the surface helical structure, induced by the combined stress, were found. Comparative analysis of the magnetic domain images and hysteresis curves gives unambiguous explanation of the character of the magnetization reversal. Spiral and elliptic structures, as basic helical structures, exist in microwires depending on the values and direction of the applied stresses.

中文翻译：

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通过扭转和拉应力的组合控制磁性微丝中的畴结构

在这封信中，我们研究了玻璃覆盖的磁微线中磁畴结构的磁化反转和转换。在张力和扭转机械应力的组合存在下，使用磁光克尔效应技术进行研究。发现了由组合应力引起的表面螺旋结构的形成和可逆转变。磁畴图像和磁滞曲线的比较分析给出了磁化反转特征的明确解释。螺旋和椭圆结构作为基本的螺旋结构，存在于微丝中，这取决于所施加应力的值和方向。