Reply to Comments by R. M. Bowen and P. M. Tracy

Liu, Ching Shi; Cambel, Ali Bulent

doi:10.1063/1.1711122

Cited by 7 publications

(13 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We have calculated both the magneto-crystalline anisotropic energy, MAE (K) and the DMI values of 0.51 meV and 0.18 meV respectively, per Cr atom, with vertical electric field of 2.0 V/nm using DFT calculation. The out-of-plane electric field, however, had a little effect on the exchange energy and the magnetic moments associated with the Cr-I bonds, consistent with report by Liu et al 14 For the spin dynamics calculation, we have considered the Néel type DMI corresponding to different electric field values. Periodic boundary conditions were considered in our system to rule out any possible effects arising from shape-induced anisotropy.…”

Section: Dft Calculationsupporting

confidence: 83%

“…Recent works. 14,32,33 on a monolayer CrI3 suggested that the magnetic anisotropy and the DMI can be tuned in a monolayer CrI3 by the application of an electric field in out of plane direction. At equilibrium conditions (no external perturbation applied to the system), a CrI3 lattice possesses an inversion crystal symmetry.…”

Section: Dft Calculationmentioning

confidence: 99%

“…Table 1 and are consistent with the earlier reports. 14,29,34 Other crystal parameters, such as the three lattice angles, Cr-I bond length, the formation energy (ground state 3 ̅ and excited state 2 ), and the relative formation energy of monolayerto-bilayer CrI3 are mentioned in the Table 1. The magnetic moment, gyromagnetic ratio, and the Heisenberg exchange were calculated to be 3 , 0.23 and 2.53 meV respectively, which are comparable to the previous reported values.…”

Section: Dft Calculationmentioning

confidence: 99%

“…11 However, after Huang et al and Gong et al demonstrated the first atomic thin 2D magnets recently there have been new interest in possible observation of 2D skyrmions. [12][13][14][15][16] CrI3, with an Ising-type ferromagnetic ordering in monolayer at temperature below 45 K, shows a crossover from ferromagnetic to antiferromagnetic in the monolayer-bilayer transition. CrI3 bilayer demonstrates electrical field control of 2D linear magnetoelectric-induced antiferromagnetic-ferromagnetic switching.…”

mentioning

confidence: 99%

See 3 more Smart Citations

Magnetic skyrmions in atomic thin CrI3 monolayer

Behera

Chowdhury

Das

2019

Applied Physics Letters

View full text Add to dashboard Cite

In this letter, we report the visualization of topologically protected spin textures, in the form of magnetic skyrmions, in recently discovered monoatomic-thin two-dimensional CrI3. By combining density functional theory and atomistic spin dynamic simulation, we demonstrate that an application of out-of-plane electric field to CrI3 lattice favors the formation of sub-10 nm skyrmions at 0 K temperature. The spin texture arises due to a strong correlation between magneto-crystalline anisotropy, Dzyaloshinskii-Moriya interaction and the vertical electric field, whose shape and size could be tuned with the magnetic field. Such finding will open new avenues for atomic-scale quantum engineering and precision sensing.

show abstract

Section: Dft Calculationsupporting

confidence: 83%

Section: Dft Calculationmentioning

confidence: 99%

Section: Dft Calculationmentioning

confidence: 99%

mentioning

confidence: 99%

See 2 more Smart Citations

Magnetic skyrmions in atomic thin CrI3 monolayer

Behera

Chowdhury

Das

2019

Applied Physics Letters

View full text Add to dashboard Cite

show abstract

“…To date many experimental, 26,29,30,32,36,44,52 computational and theoretical 3,17,22,23,27,35,41,[45][46][47]49,50,53 studies on the dynamic wetting behavior of droplets on texa) Electronic mail: ozlemozturk@itu.edu.tr b) Electronic mail: cservantie@itu.edu.tr tured/rough surfaces have shown that a stick-slip type of microscopic slipping is a common behavior.…”

Section: Introductionmentioning

confidence: 99%

Statics and dynamics of polymeric droplets on chemically homogeneous and heterogeneous substrates

Öztürk

Servantie

2019

Phys. Rev. E

View full text Add to dashboard Cite

We present a molecular dynamics study of the motion of cylindrical polymer droplets on striped surfaces. We first consider the equilibrium properties of droplets on different surfaces, we show that for small stripes the Cassie-Baxter equation gives a good approximation of the equilibrium contact angle. As the stripe width becomes non-negligible compared to the dimension of the droplets, the droplet has to deform significantly to minimize its free energy, this results in a smaller value of the contact angle than the continuum model predicts. We then evaluate the slip length, and thus the damping coefficient as a function of the stripe width. For very small stripes, the heterogeneous surface behaves as an effective surface, with the same damping as an homogeneous surface with the same contact angle. However, as the stripe width increases, damping at the surface increases until reaching a plateau. Afterwards, we study the dynamics of droplets under a bulk force. We show that if the stripes are large enough the droplets are pinned until a critical acceleration. The critical acceleration increases linearly with stripe width. For large enough accelerations, the average velocity increases linearly with the acceleration, we show that it can then be predicted by a model depending only the size of droplet, viscosity and slip length. We show that the velocity of the droplet varies sinusoidally as a function of its position on the substrate. On the other hand, for accelerations just above the depinning acceleration we observe a characteristic stick-slip motion, with successive pinnings and depinnings.

show abstract

Perspective: Dissipative particle dynamics

Español

Warren

2017

The Journal of Chemical Physics

493

392

View full text Add to dashboard Cite

Dissipative particle dynamics (DPD) belongs to a class of models and computational algorithms developed to address mesoscale problems in complex fluids and soft matter in general. It is based on the notion of particles that represent coarse-grained portions of the system under study and allow, therefore, reaching time and length scales that would be otherwise unreachable from microscopic simulations. The method has been conceptually refined since its introduction almost twenty five years ago. This perspective surveys the major conceptual improvements in the original DPD model, along with its microscopic foundation, and discusses outstanding challenges in the field. We summarize some recent advances and suggest avenues for future developments.

show abstract

Reply to Comments by R. M. Bowen and P. M. Tracy

Cited by 7 publications

References 1 publication

Magnetic skyrmions in atomic thin CrI3 monolayer

Magnetic skyrmions in atomic thin CrI3 monolayer

Statics and dynamics of polymeric droplets on chemically homogeneous and heterogeneous substrates

Perspective: Dissipative particle dynamics

Contact Info

Product

Resources

About