Study on magnetic properties of a nano-graphene bilayer

Jiang, Wei; Yang, Yingying; Guo, Anhong

doi:10.1016/j.carbon.2015.07.097

Cited by 128 publications

(19 citation statements)

References 40 publications

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“…The other system parameters have been fixed as displayed in the figure. In a recent work [21], six different compensation types [36,37] have been observed for an Ising trilayer system. On the other hand, Ref.…”

Section: Equilibrium Propertiesmentioning

confidence: 99%

“…In this regard, investigation of magnetic properties of graphenelike multilayers gained particular attention, and a wide variety of such systems have been successfully modeled within the framework of Ising model and its variants [19,20,21,22,23]. For instance, using the effective field theory (EFT) formalism, Jiang and coworkers [21] investigated the magnetic properties such as magnetization and the magnetic susceptibility of a nanographene bilayer. For a trilayer Ising nanostructure, EFT calculations have been performed and from the thermal variations of the total magnetization, six distinct compensation types have been reported by Santos and Sá Barreto [22].…”

Section: Introductionmentioning

confidence: 99%

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Monte Carlo simulation of equilibrium and dynamic phase transition properties of an Ising bilayer

Yüksel

2018

Eur. Phys. J. B

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Magnetic properties of an Ising bilayer system defined on a honeycomb lattice with non-magnetic interlayers which interact via an indirect exchange coupling have been investigated by Monte Carlo simulation technique. Equilibrium properties of the system exhibit ferrimagnetism with P -, N-and Q-type behaviors. Compensation phenomenon suddenly disappears with decreasing strength of indirect ferrimagnetic interlayer exchange coupling. Qualitative properties are in a good agreement with those obtained by effective field theory. In order to investigate the stochastic dynamics of kinetic Ising bilayer, we have introduced two different types of dynamic magnetic fields, namely a square wave, and a sinusoidally oscillating magnetic field form. For both field types, compensation point and critical temperature decrease with increasing amplitude and field period. Dynamic ferromagnetic region in the presence of square wave magnetic field is narrower than that obtained for sinusoidally oscillating magnetic field when the amplitude and the field period are the same for each type of dynamic magnetic fields.

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Section: Equilibrium Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Monte Carlo simulation of equilibrium and dynamic phase transition properties of an Ising bilayer

Yüksel

2018

Eur. Phys. J. B

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“…While there have been a number of studies investigating electronic (Fischetti et al, 2002;Kato et al, 2004;Minot et al, 2003;Mkhoyan et al, 2009;Ruffieux et al, 2012), magnetic (Akbarzadeh et al, 2012;Jiang et al, 2015;Li et al, 2011;Reddy et al, 2012;Saha et al, 2019), plasmonic (Boltasseva and Shalaev, 2015) and optical properties (Aumer et al, 2000;Jacobsen et al, 2006;Kuznetsov et al, 2016;Silambarasu et al, 2018;Yang et al, 2002) of ceramic nanomaterials, the importance of mechanical performances focused on deformation, fracture, and failure has been relatively underestimated. However, to assure the reliable operation and prolonged lifetime of such engineering systems under various loading and straining conditions, it is of great importance to understand the fundamental mechanical deterioration mechanisms, e.g., fracture, that impair the integrity and performance.…”

Section: Introductionmentioning

confidence: 99%

Crack-tip plasticity and intrinsic toughening in nano-sized brittle amorphous carbon

Shin

Jang

2020

International Journal of Plasticity

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Most monolithic brittle materials are vulnerable to the failure by cracks because of a lack of intrinsic toughening mechanisms, such as the plasticity in the vicinity of the crack front. As a result, most of the efforts to mitigate the sudden failure of brittle ceramics have been focused on developing the extrinsic toughening mechanisms that hinder crack propagation behind the tip, such as the fiber bridging. In this work, we experimentally demonstrate that the intrinsic toughening arises even in the brittle monolithic ceramic material such as diamond-like carbon (DLC) when its external dimension reduces down to sub-micron scales. This unique phenomenon owes its origin to the decrease of the crack driving force in the small samples, which in turn enables them to bear high enough stresses to activate the local atomic plasticity. Through nanomechanical tensile and bending experiments, electron energy loss spectroscopy analysis, and finite element method for stress distribution calculation, we confirmed that the local atomic plasticity associated with sp 3 to sp 2 rehybridization is responsible for the intrinsic toughening.

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“…Graphene is a versatile material with interesting electronic [17][18][19][20]33], optical [21][22][23], magnetic [24][25][26][27][28][29][30][31][32][34][35][36][37], and thermal characteristics [38][39][40][41] that could utilize in many device applications. It is also an important material for spintronic aims since the concentration of carriers can be controlled by gate voltages (or applied chemical potential).…”

Section: Introductionmentioning

confidence: 99%

Tunable magnetoresistance in spin-orbit coupled graphene junctions

Beiranvand

Hamzehpour

2019

Journal of Magnetism and Magnetic Materials

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Using the Landauer-Bütikker formalism, we study the graphene magneto-transport in the presence of Rashba spin-orbit interaction (RSOI). we show that the angle resolved transmission probability in the proposed structures can be tuned by the RSOI strength. The transmission spectrum show Klein tunneling in the parallel (P) magnetization configuration which can be blocked by the RSOI. This effect is also observable for the anti-parallel (AP) magnetization configuration in different incident angle. The numerical results shows that the spin-polarized conductance strongly depends on the strength of the RSOI and can be generated by tuning the magnetic exchange field and RSOI strength. This spin-polarized conductance is a sensitive oscillatory function of the thickness of the RSO region. Because of the spin-flip effect, the junction shows a spin-valve effect with large and negative magnetoresistance (MR) and spin-magnetoresistance (SMR) in the presence of RSOI. When the RSOI is on, the frequency and amplitude of shot-noise and Fano factor's oscillations are also increased. These results can provide a way to extending the application of graphene-based junctions in spintronics. * razieh.beiranvand@abru.ac.ir arXiv:1808.03957v1 [cond-mat.mes-hall]

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Study on magnetic properties of a nano-graphene bilayer

Cited by 128 publications

References 40 publications

Monte Carlo simulation of equilibrium and dynamic phase transition properties of an Ising bilayer

Monte Carlo simulation of equilibrium and dynamic phase transition properties of an Ising bilayer

Crack-tip plasticity and intrinsic toughening in nano-sized brittle amorphous carbon

Tunable magnetoresistance in spin-orbit coupled graphene junctions

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