Effect of X-ray irradiation on hepatocarcinoma cells and erythrocytes in salvaged blood

Zhang, Fengjiang; Yang, Jung Hun; Tang, Lihui; Wang, Wenna; Sun, Kai; Yue, Maoxing; Muhammad, Kanhar Ghulam; Zheng, Yinfei; Yan, Min

doi:10.1038/s41598-017-08405-z

Cited by 15 publications

(18 citation statements)

References 29 publications

(44 reference statements)

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“…3 and using the energy difference shown in Table I is 3.01 meV, which is much smaller than that of other predicted 2D magnets such as Co 2 S 2 with the J 1 of 58.7 meV. 38 Strain engineering has been widely used to tune the structural and electrical properties of single-layer materials, offering an important degree of flexibility. [39][40][41] We apply in-plane biaxial strains ( aa = bb ) to singlelayer pentagonal CoS 2 .…”

Section: Resultsmentioning

confidence: 88%

Single-layer antiferromagnetic semiconductor CoS2 with pentagonal structure

Liu

Kankam

2018

Phys. Rev. B

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Structure-property relationships have always been guiding principles in discovering new materials.Here we explore the relationships to discover novel two-dimensional (2D) materials with the goal of identifying 2D magnetic semiconductors for spintronics applications. In particular, we report a density functional theory + U study of single-layer antiferromagnetic (AFM) semiconductor CoS2 with the pentagonal structure forming the so-called Cairo Tessellation. We find that this singlelayer magnet exhibits an indirect bandgap of 1.06 eV with light electron and hole effective masses of 0.03 and 0.10 m0, respectively, which may lead to high carrier mobilities. The hybrid density functional theory calculations correct the bandgap to 2.24 eV. We also compute the magnetocrystalline anisotropy energy (MAE), showing that the easy axis of the AFM ordering is out of plane with a sizable MAE of 153 µeV per Co ion. We further calculate the magnon frequencies at different spin-spiral vectors, based on which we estimate the Néel temperatures to be 20.4 and 13.3 K using the mean field and random phase approximations, respectively. We then apply biaxial strains to tune the bandgap of single-layer pentagonal CoS2. We find that the energy difference between the ferromagnetic and AFM structures strongly depends on the biaxial strain, but the ground state remains the AFM ordering. Although the low critical temperature prohibits the magnetic applications of single-layer pentagonal CoS2 at room temperature, the excellent electrical properties may find this novel single-layer semiconductor applications in optoelectronic nanodevices.

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Section: Resultsmentioning

confidence: 88%

Single-layer antiferromagnetic semiconductor CoS2 with pentagonal structure

Liu

Kankam

2018

Phys. Rev. B

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“…Here, the superexchange mechanism contributes to the magnetism. Furthermore, ferromagnetism has also been predicted in several other materials (denoted by OM in Table 1) including materials such as MnO 2 , FeC 2 etc [60][61][62][63][64][65][66][67][68][69][70][71] . It is also important to mention here that Mounet and co-workers have also theoretically identified a group of ferromagnetic metals and semiconductors using data-mining algorithms and advanced, high-throughput electronic structure theory 72 .…”

Section: Proposed 2d Ferromagnetic Materials and Their Experimenmentioning

confidence: 99%

Long range intrinsic ferromagnetism in two dimensional materials and dissipationless future technologies

Shabbir

Nadeem

Dai

et al. 2018

Applied Physics Reviews

137

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The inherent susceptibility of low-dimensional materials to thermal fluctuations has long been expected to poses a major challenge to achieving intrinsic long-range ferromagnetic order in two-dimensional materials. The recent explosion of interest in atomically thin materials and their assembly into van der Waals heterostructures has renewed interest in two-dimensional ferromagnetism, which is interesting from a fundamental scientific point of view and also offers a missing ingredient necessary for the realization of spintronic functionality in van der Waals heterostructures. Recently several atomically thin materials have been shown to be robust ferromagnets. Such ferromagnetism is thought to be enabled by magneto crystalline anisotropy which suppresses thermal fluctuations. In this article, we review recent progress in two-dimensional ferromagnetism in detail and predict new possible two-dimensional ferromagnetic materials. We also discuss the prospects for applications of atomically thin ferromagnets in novel dissipationless electronics, spintronics, and other conventional magnetic technologies. Particularly atomically thin ferromagnets are promising to realize time reversal symmetry breaking in two-dimensional topological systems,

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“…A prominent example here is a chimera state in a one-or two-dimensional oscillatory medium with long-range interactions [28]. A population of oscillators driven by two mean fields [29] also demonstrated nontrivial regimes with a coexistence of ordered and disordered subpopulations. Indeed, chimera states are defined as the coexistence of coherent and noncoherent domains among identical oscillators, and finitesize fluctuations [30] may lead to cross-correlations in the disordered domain; this issue is currently under consideration.…”

Section: Discussionmentioning

confidence: 99%

Microscopic correlations in the finite-size Kuramoto model of coupled oscillators

2019

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Super-critical Kuramoto oscillators with distributed frequencies separate into two disjoint groups: an ordered one locked to the mean field, and a disordered one consisting of effectively decoupled oscillators -at least so in the thermodynamic limit. In finite ensembles, in contrast, such clear separation fails: The mean field fluctuates due to finite-size effects and thereby induces order in the disordered group. To our best knowledge, this publication is the first to reveal such an effect, similar to noise-induced synchronization, in a purely deterministic system. We start by modeling the situation as a stationary mean field with additional white noise acting on a pair of unlocked Kuramoto oscillators. An analytical expression shows that the cross-correlation between the two increases with decreasing ratio of natural frequency difference and noise intensity. In a deterministic finite Kuramoto model, the strength of the mean field fluctuations is inextricably linked to the typical natural frequency difference. Therefore, we let a fluctuating mean field, generated by a finite ensemble of active oscillators, act on pairs of passive oscillators with a microscopic natural frequency difference between which we then measure the cross-correlation, at both super-and subcritical coupling.

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Effect of X-ray irradiation on hepatocarcinoma cells and erythrocytes in salvaged blood

Cited by 15 publications

References 29 publications

Single-layer antiferromagnetic semiconductor CoS2 with pentagonal structure

Single-layer antiferromagnetic semiconductor CoS2 with pentagonal structure

Long range intrinsic ferromagnetism in two dimensional materials and dissipationless future technologies

Microscopic correlations in the finite-size Kuramoto model of coupled oscillators

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