نتایج جستجو برای: buttiker formalism

تعداد نتایج: 35516  

Journal: :Physical review 2022

Recently, the intrinsic magnetic topological insulator MnBi2Te4 has attracted enormous research interest due to great success in realizing exotic quantum states, such as anomalous Hall effect (QAHE), axion state, high-Chern-number and high-temperature Chern states. One key issue this field is effectively manipulate these states control phase transitions. Here, by systematic angle-dependent tran...

Journal: : 2021

When creating a model of composite medium based on carbon nanotubes in the gigahertz and subterahertz ranges, it is necessary to take into account tunnel coupling between nanoparticles. To simplify consideration, we present consisting same randomly oriented linear chains parallel single walled metallic connected by contacts. The problem scattering electromagnetic radiation was solved through ap...

Disordered T-shaped graphene nanodevice (TGN) was designed and studied in this paper. We demonstrated the intrinsic transport properties of the TGN by using Landauer approach. Knowing the transmission probability of an electron the current through the system is obtained using Landauer-Buttiker formalism. The effects of single disorder on conductance, current and on the transport length scales a...

2008
Philippe Ben-Abdallah

Using the Landauer-Buttiker theory we calculate the thermal conductance associated to plasmons modes in one dimensional arrays of nanoparticles closely spaced in a host fluid. Our numerical simulations show that the nearfield interactions between particles have a negligible effect on the thermal conductivity of nanoparticles colloidal solutions (nanofluids). PACS: 65.20.+w, 61.46.+w, 65.80.+n, ...

Journal: :Computer Physics Communications 2011
Matthew Shelley Nicolas Poilvert Arash A. Mostofi Nicola Marzari

A robust, user-friendly, and automated method to determine quantum conductance in quasi-one-dimensional systems is presented. The scheme relies upon an initial density-functional theory calculation in a specific geometry after which the ground-state eigenfunctions are transformed to a maximally-localised Wannier function (MLWF) basis. In this basis, our novel algorithms manipulate and partition...

Journal: :Journal of physics 2023

Abstract Different types of transport in topological semimetals probe the signatures their band topology directly. Using Landuer-Buttiker formalism, we study through a rectangular potential barrier created across junction between two multi-Weyl (MSMs). In contrast to regular Weyl semimetal with charge J = 1, MSMs are allowed have monopole charges > 1. Consequently, structures show highly ani...

Journal: :Nanotechnology 2007
Thushari Jayasekera J W Mintmire

We study the transport properties of multiterminal graphene nanodevices using the Landauer-Buttiker approach and the tight binding model. We consider a four-terminal device made at the crossing of a zigzag and armchair nanoribbons and two types of T-junction devices. The transport properties of graphene multiterminal devices are highly sensitive to the details of the junction region. Thus the p...

2011
Siraj A. Khan Prafulla Dutta Abdul M. Khan Pritom Chowdhury Jani Borah Pabitra Doloi Jagadish Mahanta

5. Alzahrani AG, Al Shaiban HM, AlMazroa MA, Al-Hayani O, MacNeil A, Rollin PE, et al. Epidemiologic characteristics of Alkhurma hemorrhagic fever in humans in Najran City, Saudi Arabia. Emerg Infect Dis. 2010;16:1882–8. 6. Hoogstraal H, Wassef HY, Buttiker W. Ticks (Acarina) of Saudi Arabia family Argasidae, Ixodidae. In: Wittmer W, Buttiker W, editors. Fauna of Saudi Arabia. Vol. 3. Basel: Ci...

رضا منصوری, , صمد خاکشورنیا, ,

  A null thin shell immersed in a generic spherically symmetric space-time is studied within the distributional formalism. It has been shown that the distributional formalism leads to the same result as the conventional Barrabes-Israel formalism.

Journal: :سیاست 0
محمد تقی قزلسفلی استادیار گروه علوم سیاسی دانشگاه مازندران نگین نوریان دهکردی دانشجوی دکتری گروه علوم سیاسی دانشگاه ارمنستان

this article explain unsuccessful iranian intellectuals' attempts in the fields of thoughts and politics through surveying ideas of ehsan tabari and jalal ale-ahmad. it tries to show that theirs ideas have been under hegemony of political formalism; so their naïve attitudes has converted their thought to an ideology which serve to political aims based on a political formalism. this article...

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