Direct observation of multiple magnetic transitions in the La3NiGe2-type compounds

Shulan Zuo; Jun Liu; Kaiming Qiao; Xinqi Zheng; Ying Zhang; Tongyun Zhao; Fengxia Hu; Jirong Sun; Chengbao Jiang; Baogen Shen

doi:10.1063/5.0012637

Direct observation of multiple magnetic transitions in the La₃NiGe₂-type compounds

Shulan Zuo^*, Jun Liu, Kaiming Qiao, Xinqi Zheng, Ying Zhang, Tongyun Zhao, Fengxia Hu, Jirong Sun, Chengbao Jiang^*, Baogen Shen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

By using Lorentz transmission electron microscopy, we show the real-space observation of magnetic domain structures in orthorhombic polycrystalline (Tb1-xGdx)3NiSi2 (x = 0, 0.4) compounds. The significant changes in magnetic domains related to multiple magnetic transitions were identified. A spin reorientation transition was further studied and a type of magnetic domain structure with two mutually perpendicular domain walls was observed, where the magnetic vortices and antivortices appeared as an array. This magnetic domain pattern evolves with temperature, which corresponds well to the spin reorientation transition and is related to the change in ferromagnetic and noncollinear magnetic components.

Original language	English
Article number	0012637
Journal	Applied Physics Letters
Volume	117
Issue number	2
DOIs	https://doi.org/10.1063/5.0012637
Publication status	Published - 13 Jul 2020
Externally published	Yes

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10.1063/5.0012637

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title = "Direct observation of multiple magnetic transitions in the La3NiGe2-type compounds",

abstract = "By using Lorentz transmission electron microscopy, we show the real-space observation of magnetic domain structures in orthorhombic polycrystalline (Tb1-xGdx)3NiSi2 (x = 0, 0.4) compounds. The significant changes in magnetic domains related to multiple magnetic transitions were identified. A spin reorientation transition was further studied and a type of magnetic domain structure with two mutually perpendicular domain walls was observed, where the magnetic vortices and antivortices appeared as an array. This magnetic domain pattern evolves with temperature, which corresponds well to the spin reorientation transition and is related to the change in ferromagnetic and noncollinear magnetic components.",

author = "Shulan Zuo and Jun Liu and Kaiming Qiao and Xinqi Zheng and Ying Zhang and Tongyun Zhao and Fengxia Hu and Jirong Sun and Chengbao Jiang and Baogen Shen",

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T1 - Direct observation of multiple magnetic transitions in the La3NiGe2-type compounds

AU - Zuo, Shulan

AU - Liu, Jun

AU - Qiao, Kaiming

AU - Zheng, Xinqi

AU - Zhang, Ying

AU - Zhao, Tongyun

AU - Hu, Fengxia

AU - Sun, Jirong

AU - Jiang, Chengbao

AU - Shen, Baogen

PY - 2020/7/13

Y1 - 2020/7/13

N2 - By using Lorentz transmission electron microscopy, we show the real-space observation of magnetic domain structures in orthorhombic polycrystalline (Tb1-xGdx)3NiSi2 (x = 0, 0.4) compounds. The significant changes in magnetic domains related to multiple magnetic transitions were identified. A spin reorientation transition was further studied and a type of magnetic domain structure with two mutually perpendicular domain walls was observed, where the magnetic vortices and antivortices appeared as an array. This magnetic domain pattern evolves with temperature, which corresponds well to the spin reorientation transition and is related to the change in ferromagnetic and noncollinear magnetic components.

AB - By using Lorentz transmission electron microscopy, we show the real-space observation of magnetic domain structures in orthorhombic polycrystalline (Tb1-xGdx)3NiSi2 (x = 0, 0.4) compounds. The significant changes in magnetic domains related to multiple magnetic transitions were identified. A spin reorientation transition was further studied and a type of magnetic domain structure with two mutually perpendicular domain walls was observed, where the magnetic vortices and antivortices appeared as an array. This magnetic domain pattern evolves with temperature, which corresponds well to the spin reorientation transition and is related to the change in ferromagnetic and noncollinear magnetic components.

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DO - 10.1063/5.0012637

M3 - Article

AN - SCOPUS:85088472041

SN - 0003-6951

VL - 117

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 2

M1 - 0012637

ER -

Direct observation of multiple magnetic transitions in the La₃NiGe₂-type compounds

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