Multiple helimagnetic phases in triclinic CuSeO3

Tomar, Ruchi; Kakkar, Sonali; Goyal, Saveena; Devi, Manisha; Bera, Chandan; Chakraverty, S.

doi:10.1016/j.jmmm.2019.165945

Cited by 6 publications

(6 citation statements)

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“…Other materials. Apart from the much-investigated LAO/STO interface, 2DEGs at a TMOI can be found in other material combinations, for example LVO/KTO (LaVO 3 /KTaO 3 ) [144], LVO/STO [145], LTO/STO [134] and CZO/STO [146] interfaces where CZO stands for CaZrO 3 (the last-mentioned system stands out by being non-polar without strain). AMR was only studied in the first two examples; sometimes, anisotropic data is shown [134] (longitudinal and transversal MR seperately, as mentioned before), although not being referred to as AMR in the respective publication.…”

Section: Two-dimensional Electron Gasesmentioning

confidence: 99%

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Anisotropic magnetoresistance: materials, models and applications

Ritzinger,

Výborný

2023

R. Soc. open sci.

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Resistance of certain (conductive and otherwise isotropic) ferromagnets turns out to exhibit anisotropy with respect to the direction of magnetization: R ∥ for magnetization parallel to the electric current direction is different from R ⊥ for magnetization perpendicular to the electric current direction. In this review, this century-old phenomenon is reviewed both from the perspective of materials and physical mechanisms involved. More recently, this effect has also been identified and studied in antiferromagnets. To date, sensors based on the anisotropic magnetoresistance (AMR) effect are widely used in different fields, such as the automotive industry, aerospace or in biomedical imaging.

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Section: Two-dimensional Electron Gasesmentioning

confidence: 99%

“…In low-temperature measurements in (001)-interfaces of LVO/KTO [144] and LVO/STO [145] a lowfield twofold AMR turned into a high-field fourfold AMR. In the case of a (111)-interface of LVO/STO the high-field AMR was sixfold.…”

Section: Two-dimensional Electron Gasesmentioning

confidence: 99%

Anisotropic magnetoresistance: materials, models and applications

Ritzinger,

Výborný

2023

R. Soc. open sci.

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“…The AMR and PHE observed in STO‐based systems have been irregular and their origins were linked to anisotropy in magnetic scattering and change in the Fermi surface due to their orbital configuration and reconstruction. [ 199–204 ] The LVO‐KTO system was found to show both PHE and AMR, [ 45 ] which were oscillatory in nature, having sinϕcosϕ and cos 2 ϕ dependences, respectively (Figure 18d,e). The AMR oscillations showed a transition from twofold to fourfold behavior when the magnetic exceeded 7 T, whereas no such change was observed in the PHE.…”

Section: Low‐dimensional Electron Gas In Ktao3: Surfaces and Interfacesmentioning

confidence: 99%

KTaO₃—The New Kid on the Spintronics Block

Gupta¹,

Harsha²,

Kumari³

et al. 2022

Advanced Materials

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Long after the heady days of high‐temperature superconductivity, the oxides came back into the limelight in 2004 with the discovery of the 2D electron gas (2DEG) in SrTiO3 (STO) and several heterostructures based on it. Not only do these materials exhibit interesting physics, but they have also opened up new vistas in oxide electronics and spintronics. However, much of the attention has recently shifted to KTaO3 (KTO), a material with all the “good” properties of STO (simple cubic structure, high mobility, etc.) but with the additional advantage of a much larger spin‐orbit coupling. In this state‐of‐the‐art review of the fascinating world of KTO, it is attempted to cover the remarkable progress made, particularly in the last five years. Certain unsolved issues are also indicated, while suggesting future research directions as well as potential applications. The range of physical phenomena associated with the 2DEG trapped at the interfaces of KTO‐based heterostructures include spin polarization, superconductivity, quantum oscillations in the magnetoresistance, spin‐polarized electron transport, persistent photocurrent, Rashba effect, topological Hall effect, and inverse Edelstein Effect. It is aimed to discuss, on a single platform, the various fabrication techniques, the exciting physical properties and future application possibilities of this family of materials.

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“…Perovskite oxides are a class of materials that host an enormous amount of rich physical properties. [ 7–20 ] In addition, due to their simple cubic structures, heterostructures of different perovskite oxides can rather easily be prepared. Realization of Weyl fermions in perovskite oxides may give additional freedom of integrating other physical properties to achieve higher functionalities and emergent physical properties if an appropriate heterostructure is designed.…”

Section: Introductionmentioning

confidence: 99%

Possible Signatures of Chiral Anomaly in the Magnetoresistance of a Quasi‐2‐Dimensional Electron Gas at the Interface of LaVO₃ and KTaO₃

Silotia¹,

Kumari²,

Gupta³

et al. 2022

Adv Elect Materials

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In a Dirac semimetal, charges flow between two Weyl nodes when electric and magnetic fields (E||B) are parallel to each other manifesting interesting physical properties such as negative longitudinal magnetoresistance (NLMR), planar Hall effect (PHE). A co‐existence of weak antilocalization (WAL) is observed with large NLMR and an unusual Hall resistance with (B||E) configuration, at the conducting interface of LaVO3 (LVO) and KTaO3 (KTO). The full‐width half maxima of the depth of the conducting channel at the interface is estimated to be around 10 nm by using spectroscopy techniques of photoluminescence and time‐correlated single‐photon counting: suggesting a quasi‐2‐dimensional nature of the conducting electrons. The PHE exhibits oscillatory behavior as a function of the angle between E and B. Very similar temperature dependence of NLMR and PHE suggest a strong correlation among them.

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Multiple helimagnetic phases in triclinic CuSeO3

Cited by 6 publications

References 50 publications

Anisotropic magnetoresistance: materials, models and applications

Anisotropic magnetoresistance: materials, models and applications

KTaO₃—The New Kid on the Spintronics Block

Possible Signatures of Chiral Anomaly in the Magnetoresistance of a Quasi‐2‐Dimensional Electron Gas at the Interface of LaVO₃ and KTaO₃

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Multiple helimagnetic phases in triclinic CuSeO3

Cited by 6 publications

References 50 publications

Anisotropic magnetoresistance: materials, models and applications

Anisotropic magnetoresistance: materials, models and applications

KTaO3—The New Kid on the Spintronics Block

Possible Signatures of Chiral Anomaly in the Magnetoresistance of a Quasi‐2‐Dimensional Electron Gas at the Interface of LaVO3 and KTaO3

Contact Info

Product

Resources

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KTaO₃—The New Kid on the Spintronics Block

Possible Signatures of Chiral Anomaly in the Magnetoresistance of a Quasi‐2‐Dimensional Electron Gas at the Interface of LaVO₃ and KTaO₃