Noncollinear Mn3Sn for antiferromagnetic spintronics

Wang, Xiaoning; Yan, Han; Zhou, Xiaorong; Chen, Hongyu; Feng, Zexin; Qin, Peixin; Meng, Ziang; Liu, Li; Liu, Zhiqi

doi:10.1016/j.mtphys.2022.100878

Cited by 14 publications

(6 citation statements)

References 123 publications

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“…Magnetic materials with noncollinear magnetic structures are a subject of great interest due to several intriguing phenomena, such as spin frustration and topological phases, which have great potential for excellent spintronic devices [1,2]. As an example of magnetic material, the antiferromagnet Mn 3 Sn has attracted tremendous attention since it has been found significant anomalous Hall effect and intrinsic spin Hall effect [3][4][5][6][7], which generates no perturbing stray field and has much faster spin dynamics than ferromagnets [8][9][10][11][12]. Because of the robustness against magnetic field perturbation and ultrafast * Authors to whom any correspondence should be addressed.…”

Section: Introductionmentioning

confidence: 99%

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The structural stability of Mn₃Sn Heusler compound under high pressure

Zhang,

Lu,

2024

J. Phys.: Condens. Matter

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Pressure engineering has attracted growing interest in the understanding of structural changes and structure-property relations of layered materials. In this study, we investigated the effect of pressure on the crystal structure of Mn3Sn. In-situ high-pressure X-ray diffraction experiments revealed that Mn3Sn maintained hexagonal lattice symmetry within the pressure range of ambient to 50.4 GPa. The ratio of lattice constants c/a is almost independent of the pressure and remains constant at 0.80, indicating a stable cell shape. Density functional theory calculations revealed the strong correlation between the crystal structure and the localization of d electrons. The Mn3Sn have been found in flat energy bands near the Fermi level, exhibiting a large density of states (DOS) primarily contributed by the d electrons. This large DOS near the Fermi level increases the energy barrier for a phase transition, making the transition from the hexagonal phase to the tetragonal phase challenging. Our results confirm the structural stability of Mn3Sn under high pressure, which is beneficial to the robustness of spintronic devices.

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Section: Introductionmentioning

confidence: 99%

“…spin dynamics compared to ferromagnetic materials, Mn 3 Sn is considered a promising candidate for next-generation memory devices [7,10,13]. In addition, Mn 3 Sn is an example of a topological Weyl magnet and exhibits large topological responses.…”

Section: Introductionmentioning

confidence: 99%

The structural stability of Mn₃Sn Heusler compound under high pressure

Zhang,

Lu,

2024

J. Phys.: Condens. Matter

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“…While hematite has been long studied, its spin-flip transition along with its tunability in T M offers hematite a unique role in spintronics. Indeed, hematite recently returned to the forefront of magnetism research thanks to the increasing interest in AFM spintronics [13][14][15][16][17][18][19][20][21][22][23][24]. Also, it has been recently proposed that hematite is an altermagnet [25].…”

Section: Introductionmentioning

confidence: 99%

Coercivity Enhancement in Hematite/Permalloy Heterostructures Across the Morin Transition

Wang,

Basaran,

Hage

et al. 2024

Preprint

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“…11 Therefore, antiferromagnets with appropriate magnetic octupoles can be used instead of ferromagnetic materials to accelerate the development of spintronics. 7,12 Mn 3 X is the most promising material for observing the magnetic octupole-driven anomalous Hall effect (AHE) at room temperature. 5−8 The AHE of Mn 3 Ge is maintained at low temperatures, while the AHE and magnetic phase diagram of Mn 3 Sn strongly correlates with crystallinity [residual resistivity ratio (RRR)]; the octupole-driven AHE disappears at 275 K for high-quality Mn 3 Sn (type A in Figure 1a), while low-quality Mn 3 Sn show the AHE above ∼50 K (type B.).…”

Section: ■ Introductionmentioning

confidence: 99%

Tuning of Anomalous Hall Effect by Systematic Doping on Mn₃Sn

Yano,

Kabeya,

Hayashi

et al. 2024

Crystal Growth & Design

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Mn 3 Sn is an AHE antiferromagnet exhibiting a hysteretic anomalous Hall effect (AHE) originating from the cluster octupole moments of inverse triangular antiferromagnetic spins at room temperature, whereas the AHE disappears at low temperatures. In this study, we evaluated the systematic doping effect on the AHE of Mn 3 Sn to stabilize the AHE at low temperatures. We grew single crystals of M 0.1 Mn 2.9 Sn and Mn 3 Sn 0.9 X 0.1 (M = Cr and Fe; X = Si and Ge) and evaluated their transport and magnetic properties. Compared with doping at the Sn site, doping at the Mn site drastically changes the AHE at low temperatures. Reproducible magnetic structures were not observed at low temperatures owing to low Fe content fluctuation near x ∼ 0.1 in Fe x Mn 3−x Sn. Some crystals showed a large hysteretic-type AHE, unlike the AHE at 300 K, while others did not show a finite AHE below 50 K. Conversely, Cr doping stabilizes the AHE with additional magnetoresistance that hinders observing the AHE. Considering these features, we prepared Cr and Fe codoped Mn 3 Sn crystals. The Fe 0.05 /Cr 0.1 -doped Mn 3 Sn crystals showed the AHE from room temperature to 2 K without magnetic transitions. This finding provides a new route to access octupole-driven phenomena of Mn 3 Sn-based devices at low temperatures.

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Noncollinear Mn3Sn for antiferromagnetic spintronics

Cited by 14 publications

References 123 publications

The structural stability of Mn₃Sn Heusler compound under high pressure

The structural stability of Mn₃Sn Heusler compound under high pressure

Coercivity Enhancement in Hematite/Permalloy Heterostructures Across the Morin Transition

Tuning of Anomalous Hall Effect by Systematic Doping on Mn₃Sn

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Noncollinear Mn3Sn for antiferromagnetic spintronics

Cited by 14 publications

References 123 publications

The structural stability of Mn3Sn Heusler compound under high pressure

The structural stability of Mn3Sn Heusler compound under high pressure

Coercivity Enhancement in Hematite/Permalloy Heterostructures Across the Morin Transition

Tuning of Anomalous Hall Effect by Systematic Doping on Mn3Sn

Contact Info

Product

Resources

About

The structural stability of Mn₃Sn Heusler compound under high pressure

The structural stability of Mn₃Sn Heusler compound under high pressure

Tuning of Anomalous Hall Effect by Systematic Doping on Mn₃Sn