Tunable exchange bias in hard/soft SmMnO3/α-Mn2O3 composite with AFM structures

Shen, Hui; Peng, Feng; Jiang, Guochao; Wu, Anhua

doi:10.1016/j.physb.2020.412084

Cited by 5 publications

(1 citation statement)

References 35 publications

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“…This effect is explained by considering that the cooling field would act on the AFM component to give rise to an additional induced magnetization. Correspondingly, the magnetic domain size would increase, and both the exchange coupling intensity of the interfacial domains and the unidirectional anisotropy would be strengthened, 84 , 85 resulting in a stronger pinning interaction between AFM and SG phases that enhances μ 0 H EB . 86 , 87 Likewise, the slight decrease in μ 0 H c with cooling field that we observe ( Figure 6 h) can be explained by considering that larger cooling fields would increase the polarization of the spin glass 87 weakly ordering this phase and reducing the pinning within the SG domain, leading to the suppression of μ 0 H c .…”

Section: Discussionmentioning

confidence: 99%

Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe₂ Spin Glass

Kong,

Kaminsky,

Groschner

et al. 2023

J. Am. Chem. Soc.

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Some magnetic systems display a shift in the center of their magnetic hysteresis loop away from zero field, a phenomenon termed exchange bias. Despite the extensive use of the exchange bias effect, particularly in magnetic multilayers, for the design of spin-based memory/electronics devices, a comprehensive mechanistic understanding of this effect remains a longstanding problem. Recent work has shown that disorder-induced spin frustration might play a key role in exchange bias, suggesting new materials design approaches for spin-based electronic devices that harness this effect. Here, we design a spin glass with strong spin frustration induced by magnetic disorder by exploiting the distinctive structure of Fe intercalated ZrSe 2 , where Fe(II) centers are shown to occupy both octahedral and tetrahedral interstitial sites and to distribute between ZrSe 2 layers without long-range structural order. Notably, we observe behavior consistent with a magnetically frustrated and multidegenerate ground state in these Fe 0.17 ZrSe 2 single crystals, which persists above room temperature. Moreover, this magnetic frustration leads to a robust and tunable exchange bias up to 250 K. These results not only offer important insights into the effects of magnetic disorder and frustration in magnetic materials generally, but also highlight as design strategy the idea that a large exchange bias can arise from an inhomogeneous microscopic environment without discernible long-range magnetic order. In addition, these results show that intercalated TMDs like Fe 0.17 ZrSe 2 hold potential for spintronic technologies that can achieve room temperature applications.

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Section: Discussionmentioning

confidence: 99%

Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe₂ Spin Glass

Kong,

Kaminsky,

Groschner

et al. 2023

J. Am. Chem. Soc.

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show abstract

Ferromagnetism in LaMnO3-LaFeO3-LaCoO3 mixed spin perovskite oxide solid solution

Shukla

Kumar

Pathak

2023

Ceramics International

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Electrochemical and magnetic properties of perovskite type RMnO3 (R = La, Nd, Sm, Eu) nanofibers

Yue

Yang

et al. 2021

Journal of Alloys and Compounds

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Tunable exchange bias in hard/soft SmMnO3/α-Mn2O3 composite with AFM structures

Cited by 5 publications

References 35 publications

Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe₂ Spin Glass

Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe₂ Spin Glass

Ferromagnetism in LaMnO3-LaFeO3-LaCoO3 mixed spin perovskite oxide solid solution

Electrochemical and magnetic properties of perovskite type RMnO3 (R = La, Nd, Sm, Eu) nanofibers

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Tunable exchange bias in hard/soft SmMnO3/α-Mn2O3 composite with AFM structures

Cited by 5 publications

References 35 publications

Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe2 Spin Glass

Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe2 Spin Glass

Ferromagnetism in LaMnO3-LaFeO3-LaCoO3 mixed spin perovskite oxide solid solution

Electrochemical and magnetic properties of perovskite type RMnO3 (R = La, Nd, Sm, Eu) nanofibers

Contact Info

Product

Resources

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Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe₂ Spin Glass

Near Room-Temperature Intrinsic Exchange Bias in an Fe Intercalated ZrSe₂ Spin Glass