Hydrogen-bond potential for ice VIII-X phase transition

Zhang, Xi; Chen, Shun; Li, Jichen

doi:10.1038/srep37161

Cited by 44 publications

(62 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The first is to mix two spin-species since these feel opposite emergent fields ±B em . This happens in antiferromagnetic skyrmions [41,42,43,44,45] -a skyrmion consisting of two sublattices with mutually reversed spins. The THE vanishes and a topological spin Hall effect emerges: electrons with spins aligned parallel to the texture are deflected into one transverse direction, while electrons with oppositely aligned spins are deflected into the other direction.…”

Section: Suppression Of the Topological Hall Effect In The Presence Omentioning

confidence: 99%

Compensated Quantum and Topological Hall Effects of Electrons in Polyatomic Stripe Lattices

Göbel

Mook

Henk

et al. 2020

Physica Status Solidi (b)

View full text Add to dashboard Cite

The quantum Hall effect is generally understood for free electron gases, in which topologically protected edge states between Landau levels form conducting channels at the edge of the sample. In periodic crystals the Landau levels are imprinted with lattice properties; plateaus in the transverse Hall conductivity are not equidistant in energy anymore. In this paper we consider crystals with a polyatomic basis. For a stripe arrangement of different atoms the band structure resorts non-trivially and exhibits strong oscillations that form a salient pattern with very small band gaps. The Hall conductivity strongly decreases for energies within these bands and only sharp peaks remain for energies in the gap. We trace back these effects to open orbits in the initial band structure; the corresponding Landau levels are formed from states with positive and negative effective mass. The partial cancellation of transverse charge conductivity also holds for different polyatomic stripe lattices and even when the magnetic field is replaced by a topologically non-trivial spin texture. We show that the topological Hall effect is suppressed in the presence of magnetic skyrmions. Our discussion is complemented by calculations of Hofstadter butterflies and the orbital magnetization.

show abstract

Section: Suppression Of the Topological Hall Effect In The Presence Omentioning

confidence: 99%

Compensated Quantum and Topological Hall Effects of Electrons in Polyatomic Stripe Lattices

Göbel

Mook

Henk

et al. 2020

Physica Status Solidi (b)

View full text Add to dashboard Cite

show abstract

“…[35] On the other hand, the METTL13/ FEATp rotein was also implied as at umor suppressor in bladder carcinomab yn egatively regulating cell proliferation,m igration, and invasion in bladder cancer cells. [36]…”

Section: Eukaryotic Proteinntmtsthat Methylate Elongation Factor 1amentioning

confidence: 99%

Chemical Biology of Protein N‐Terminal Methyltransferases

Huang

2019

ChemBioChem

View full text Add to dashboard Cite

Protein α‐N‐terminal methylation is catalyzed by protein N‐terminal methyltransferases. The prevalent occurrence of this methylation in ribosomes, myosin, and histones implies its function in protein–protein interactions. Although its full spectrum of function has not yet been outlined, recent discoveries have revealed the emerging roles of α‐N‐terminal methylation in protein–chromatin interactions, DNA damage repair, and chromosome segregation. Herein, an overview of the discovery of protein N‐terminal methyltransferases and functions of α‐N‐terminal methylation is presented. In addition, substrate recognition, mechanisms, and inhibition of N‐terminal methyltransferases are reviewed. Opportunities and gaps in protein α‐N‐terminal methylation are also discussed.

show abstract

“…Antiferromagnets can also be electrically manipulated by conventional spin-transfer torques in the absence of the spin-orbit interaction [17][18][19][20][21][22][23][24][25][26][27][28][29]. Previous studies on conventional spin-transfer torques can be classified into two groups.…”

Section: Introductionmentioning

confidence: 99%

“…The first group [17][18][19][20][21][22][23] is for spin-valve-like structures in which an antiferromagnet is interfaced with a normal metal and the spin-transfer torque consists of damping-like and field-like components through real and imaginary spin-mixing conductances at the antiferromagnet/normal metal interface [22,30]. The second group [23][24][25][26][27][28][29] is for continuously varying antiferromagnetic spin textures such as domain walls for which the spin-transfer torque consists of adiabatic and non-adiabatic torques. An ab initio study [23] computed the adiabatic spin torque for a domain wall in a system where two ferromagnetic layers are antiferromagnetically coupled in the thickness direction.…”

Section: Introductionmentioning

confidence: 99%

Numerical computation of spin-transfer torques for antiferromagnetic domain walls

Park

Jeong

et al. 2020

Phys. Rev. B

View full text Add to dashboard Cite

We numerically compute current-induced spin-transfer torques for antiferromagnetic domain walls, based on a linear response theory in a tight-binding model. We find that, unlike for ferromagnetic domain wall motion, the contribution of adiabatic spin torque to antiferromagnetic domain wall motion is negligible, consistent with previous theories. As a result, the non-adiabatic spin-transfer torque is a main driving torque for antiferromagnetic domain wall motion. Moreover, the non-adiabatic spin-transfer torque for narrower antiferromagnetic domain walls increases more rapidly than that for ferromagnetic domain walls, which is attributed to the enhanced spin mistracking process for antiferromagnetic domain walls. * Electronic address: kj_lee@korea.ac.krIn this section, we discuss effective adiabatic spin-transfer torques (b FM J andb AFM J ) and effective non-adiabatic spin-transfer torques (c FM J andc AFM J ), which are calculated by integrating the local 13 torques over the domain wall profile [see Eqs. (24), (25), and (28)]. For ferromagnetic domain walls [Fig. 3(a)], the effective adiabatic (b FM J ; left panel) and nonadiabatic (c FM J ; right panel) torques are almost constant regardless of the domain wall width ranging from 6d to 28d. Even with a variation of E F , this insensitivity to the domain wall width is maintained. Since bothb FM J andc FM J are finite, one can define the effective non-adiabaticity β eff (≡c FM J /b FM J ), which is almost a constant of the order of 0.05 in our model, consistent with previous works [48-51]. In contrast, the effective torques for antiferromagnetic domain walls show two distinct features in comparison to those for ferromagentic domain walls. First, the effective adiabatic torque [b AFM J ; left panel of Fig. 3(b)] is almost zero regardless of the Fermi energy and domain wall width. Given that the local adiabatic torque for antiferromagnetic domain walls is finite [left panel of Fig. 2(b)], this nearly zero effective adiabatic torque results from the symmetry of n × ∂ 2 n ∂x 2 · ∂n ∂φ , which is zero when integrating over a whole domain wall profile [see the integral of Eq. (25)]. It also supports that the adiabatic torque contribution to the antiferromagnetic domain wall motion is almost absent. Second, the effective non-adiabatic torque [c AFM J ; right panel of Fig. 3(b)] increases rapidly with decreasing the domain wall width, which is consistent with that expected for the spin mistracking process. To further validate the spin mistracking process as a main origin of the enhancedc AFM J for a narrower wall, we computec FM J andc AFM J with varying the exchange parameter ∆ (Fig. 4).We find thatc AFM J increases more rapidly thanc FM J . These results support that the spin mistracking process is responsible for the enhancedc AFM J for a narrower wall, especially in antiferromagnets. V. CONCLUSIONIn this paper, we numerically compute the adiabatic and non-adiabatic spin-transfer torques for antiferromangetic domain walls. We find that the effective adiabatic torque in...

show abstract

Hydrogen-bond potential for ice VIII-X phase transition

Cited by 44 publications

References 39 publications

Compensated Quantum and Topological Hall Effects of Electrons in Polyatomic Stripe Lattices

Compensated Quantum and Topological Hall Effects of Electrons in Polyatomic Stripe Lattices

Chemical Biology of Protein N‐Terminal Methyltransferases

Numerical computation of spin-transfer torques for antiferromagnetic domain walls

Contact Info

Product

Resources

About