Lorentz microscopy and small-angle electron diffraction study of magnetic textures in La1-xSrxMnO3 (0.15 < x < 0.30): The role of magnetic anisotropy

Article

关键词: REAL-SPACE OBSERVATION;    SKYRMION LATTICE;    THIN-FILMS;    DOMAIN-STRUCTURES;    BUBBLE DOMAINS;    COBALT;    MNSI;   

DOI  :  10.1103/PhysRevB.94.024407

来源: SCIE

【 摘 要 】

Magnetic textures in the ferromagnetic phases of La1-xSrxMnO3 for 0.15 < x < 0.30 have been investigated by Lorentz microscopy combined with small-angle electron diffraction experiments. Various types of magnetic textures characterized by stripe, plate-shaped, and cylindrical (magnetic bubble) domains were found. Two distinct types of magnetic stripe domains appeared in the orthorhombic structure with an inversion symmetry of La0.825Sr0.175MnO3, depending significantly on magnetocrystalline anisotropy. Based on in situ observations as functions of temperature and the strength of the external magnetic field, a magnetic field-temperature phase diagram was constructed, showing the stabilization of magnetic bubbles in the ferromagnetic phase of La0.825Sr0.175MnO3.

【 授权许可】

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