Spin-Wave Analysis of the Sublattice Magnetization Behavior of Antiferromagnetic and Ferromagnetic Cr<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Cl</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Narath, Albert; Davis, Harold L.

doi:10.1103/physrev.137.a163

Cited by 73 publications

(54 citation statements)

References 29 publications

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“…MCD signals of exfoliated monolayer, bilayer and trilayer CrBr 3 have been observed at low temperatures, with magnetic hysteresis showing remanent magnetization . On the other hand, temperature‐dependent conductance at zero applied field has been for CrCl 3 tunneling devices, with an marked decrease in the conductance between 14 and 16 K, reflecting an onset of interlayer antiferromagnetic alignment, in agreement with bulk Néel temperature …”

Section: Progress On Van Der Waals Magnets and Heterostructuressupporting

confidence: 52%

“…67 On the other hand, temperature-dependent conductance at zero applied field has been for CrCl 3 tunneling devices, with an marked decrease in the conductance between 14 and 16 K, reflecting an onset of interlayer antiferromagnetic alignment, in agreement with bulk Néel temperature. 69 Besides the experimental effort in exploring the 2D magnetism, recent theoretical investigations have shown a strong dependence of the magnetic interlayer coupling in CrI 3 on stacking structure. In particular, a rhombohedral stacking structure is predicted to favor a ferromagnetic interlayer coupling, whereas a monoclinic stacking structure is coupled antiferromagnetically.…”

Section: Cr-based Vdw Magnetsmentioning

confidence: 99%

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Van der Waals magnets: Wonder building blocks for two‐dimensional spintronics?

Zhang

Wong

Zhu

et al. 2019

InfoMat

105

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The unprecedented realization of two‐dimensional (2D) van der Waals magnets excitingly extends the synergy between spintronics and 2D materials, started with graphene over the last decade. This article reviews the recent milestones in the development of 2D magnets and its derived heterostructures. In particular, a number of critical challenges centered around the scalability, ambient stability and Curie temperature of these atomically thin magnets are discussed. This mini‐review also provides an outlook on what the future might hold for this integrated field of 2D spintronics, and assesses its potential in postsilicon electronics.

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Section: Progress On Van Der Waals Magnets and Heterostructuressupporting

confidence: 52%

Section: Cr-based Vdw Magnetsmentioning

confidence: 99%

Van der Waals magnets: Wonder building blocks for two‐dimensional spintronics?

Zhang

Wong

Zhu

et al. 2019

InfoMat

105

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“…A conspicuously strong fielddependent susceptibility is observed in the magnetic ordered state in these hexagonal layer-type crystals [7]. This behaviour is explained by a ferromagnetic coupling within each layer and a relatively weak antiferromagnetic coupling between adjacent layers, that can be disturbed in relatively weak external fields [6].…”

Section: Introductionmentioning

confidence: 99%

Magnetic Ordering in CrCl3 at the Phase Transition

Kuhlow

1982

phys. stat. sol. (a)

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The Faraday‐rotation of CrCl3 crystals is investigated in the temperature range from 7 to 23.5 K and in fields up to 320 kA/m. The magnetic ordering sets in at T = 16.8 K whereas the maximum of the susceptibility is observed at T = (15.5 ± 0.2) K. Consequently during cooling first a twodimensional ferromagnetic ordering at Tc = 16.8 K occurs in the hexagonal layers of the crystal, and the antiferromagnetic ordering between the layers appears at a somewhat lower temperature at TN = (15.5 ± 0.2) K. A spin‐flop is found in the antiferromagnetic state. It shows that CrCl3 is not a metamagnet as often assumed. The flop‐field is Hsf = (13.0 ± 0.5) kA/m at T = 7 K, corresponding to an anisotropy field of 780 A/m in the layer plane.

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“…CWST was applied with great elegance and one might say virtuosity in the above systems and appears to fit the data extraordinarily well. 2,4,10 We, however, explain the apparent good fits as being due to layers of analysis that introduce a sufficient number of adjustable parameters to fit almost any magnetization curve. We think that the simple behaviors actually displayed by CrCl 3 and the fluoride systems, as well as other simple magnetic systems, 14 herald the need for a review of the validity of conventional spin-wave theory.…”

Section: -mentioning

confidence: 99%

“…No NS measurements were made, but the 53 Cr NMR data of Narath and Davis, 10 like the NMR data of the fluoride compounds, are exceptionally precise, and performed with outstanding thermometry. In the low-temperature regime (M 0 > M > 0:9M 0 ), i.e., for T < 4 K, CrCl 3 exhibits a precise T 1:33 fall-off of the magnetization.…”

Section: -mentioning

confidence: 99%

Serious discrepancies between nuclear magnetic resonance and neutron scattering measurements in the critical region of classic two-dimensional magnets and anomalous behaviors at low temperatures

Bykovetz

Klein

Lin

2011

Journal of Applied Physics

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Follow this and additional works at: http://repository.upenn.edu/physics_papers Part of the Physics CommonsSuggested Citation: Bykovetz, N., Klein, J. and Lin, C.L. (2007). Serious discrepancies between nuclear magnetic resonance and neutron scattering measurements in the critical region of classic two-dimensional magnets and anomalous behaviors at low temperatures. Journal of Applied Physics. 109, 07E119. Recommended CitationBykovetz, N., Klein, J., & Lin, C. L. (2011). Serious discrepancies between nuclear magnetic resonance and neutron scattering measurements in the critical region of classic two-dimensional magnets and anomalous behaviors at low temperatures. Retrieved from http://repository.upenn.edu/physics_papers/136Serious discrepancies between nuclear magnetic resonance and neutron scattering measurements in the critical region of classic two-dimensional magnets and anomalous behaviors at low temperatures Abstract A characterization of 2D critical behavior in the classic 2D antiferromagnets K 2 NiF 4 , Rb 2 MnF 4 , and K 2 MnF 4 made originally by Birgeneau et al. [Phys. Rev. B 1, 2211(1970], using neutron scattering (NS), is used to review NMR data in these compounds and in some classic 2D ferromagnets. On analyzing the NMR data, very serious discrepancies were found between the NMR and NS results for the critical exponent ß, with the values of the NMR ßs being some 50% higher. Some novel results were also found, including 2D cases where ß = 0.33 (but characterized by a non-3D parameter, D~1). The discrepancies surely need to be resolved, and if the present analysis of the NMR data is further validated, these results could present a clear and nontrivial hurdle for current critical-region theories. Additionally, from the NMR data it was found that the lowtemperature behaviors of these classical 2D systems are at odds with the predictions of conventional spinwave theory analyses. Serious discrepancies between nuclear magnetic resonance and neutron scattering measurements in the critical region of classic two-dimensional magnets and anomalous behaviors at low temperatures A characterization of 2D critical behavior in the classic 2D antiferromagnets K 2 NiF 4 , Rb 2 MnF 4 , and K 2 MnF 4 made originally by Birgeneau et al. [Phys. Rev. B 1, 2211(1970], using neutron scattering (NS), is used to review NMR data in these compounds and in some classic 2D ferromagnets. On analyzing the NMR data, very serious discrepancies were found between the NMR and NS results for the critical exponent b, with the values of the NMR bs being some 50% higher. Some novel results were also found, including 2D cases where b ¼ 0:33 (but characterized by a non-3D parameter, D $ 1). The discrepancies surely need to be resolved, and if the present analysis of the NMR data is further validated, these results could present a clear and nontrivial hurdle for current critical-region theories. Additionally, from the NMR data it was found that the low-temperature behaviors of these classical 2D systems are at odds with the predictions of co...

show abstract

Spin-Wave Analysis of the Sublattice Magnetization Behavior of Antiferromagnetic and Ferromagnetic CrCl3

Cited by 73 publications

References 29 publications

Van der Waals magnets: Wonder building blocks for two‐dimensional spintronics?

Van der Waals magnets: Wonder building blocks for two‐dimensional spintronics?

Magnetic Ordering in CrCl3 at the Phase Transition

Serious discrepancies between nuclear magnetic resonance and neutron scattering measurements in the critical region of classic two-dimensional magnets and anomalous behaviors at low temperatures

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