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相关论文: One-dimensional transport in polymer nanofibers

200 篇论文

The paper addresses the problem whether and how it is possible to detect the Luttinger-liquid behavior from the $IV$ curves for tunneling to 1D or quasi-1D conductors. The power-law non-ohmic $IV$ curve, which is usually considered as a…

介观与纳米尺度物理 · 物理学 2019-10-09 E. B. Sonin

We investigate discrepancies between recent experimental results on transport through one-dimensional quantum dots and universal power laws predicted by an idealized Luttinger Liquid description. The temperature dependence of Coulomb…

介观与纳米尺度物理 · 物理学 2007-05-23 T. Kleimann , J. Stockburger , M. Sassetti , B. Kramer

The search for theoretically predicted Wigner crystal in one-dimensional (1D) wires of structurally disordered materials exhibiting properties of charge-density-waves have remained unsuccessful. Based on the results of a low temperature…

介观与纳米尺度物理 · 物理学 2007-05-23 Atikur Rahman , Milan K. Sanyal

We introduce a new quantum transport formalism based on a map of a real 3-dimensional lead-conductor-lead system into an effective 1-dimensional system. The resulting effective 1D theory is an in principle exact formalism to calculate the…

其他凝聚态物理 · 物理学 2013-05-29 Pierre Darancet , Valerio Olevano , Didier Mayou

The advances in the growth techniques provide numerous scope to explore the possibilities of new 2D materials for potential applications. With the aid of first-principle calculations we show that 2D Na can be a new addition to the family of…

材料科学 · 物理学 2019-08-08 Ajit Jena , Wu Li

We have studied ballistic transport in a 1D channel formed using surface gate techniques on a back-gated, high-mobility, bilayer 2D hole system. At millikelvin temperatures, robust conductance quantization is observed in the quantum wire…

介观与纳米尺度物理 · 物理学 2009-11-11 R. Danneau , W. R. Clarke , O. Klochan , A. P. Micolich , A. R. Hamilton , M. Y. Simmons , M. Pepper , D. A. Ritchie

We extend the pseudoparticle transport description of the Hubbard chain to all energy scales. In particular we compute the mean value of the electric current transported by any Bethe-ansatz state and the transport masses of the charge…

强关联电子 · 物理学 2016-08-31 N. M. R. Peres , J. M. P. Carmelo , D. K. Campbell , A. W. Sandvik

We measure electrical transport on networks of single wall nanotube ropes as a function of temperature T, voltage V and pressure up to 22GPa. We observe Luttinger liquid (LL) behavior, a conductance ~T^alpha and a dynamic conductance…

介观与纳米尺度物理 · 物理学 2009-11-10 M. Monteverde , M. Nunez-Regueiro

We discuss the Luttinger Liquid behaviour of a semiconducting Quantum Wire. We show that the measured value of the bulk critical exponent, $\alpha_{bulk}$, for the tunneling density of states can be easily calculated. Then, the problem of…

介观与纳米尺度物理 · 物理学 2016-08-31 S. Bellucci , P. Onorato

Individual metallic single-wall carbon nanotubes show unsual non-Ohmic transport behaviors at high bias fields. For low resistance contact samples, the differential conductance dI/dV increases with increasing bias, reaching a maximum at…

介观与纳米尺度物理 · 物理学 2015-06-04 S. Fujita , H. C. Ho

We investigate quantum transport in aligned carbon nanotube (CNT) fibers fabricated via solution spinning, focusing on the roles of structural dimensionality and quantum interference effects. The fibers exhibit metallic behavior at high…

We study electronic transport through a one-dimensional, finite-length quantum wire of correlated electrons (Luttinger liquid) coupled at arbitrary position via tunnel barriers to two semi-infinite, one-dimensional as well as stripe-like…

强关联电子 · 物理学 2015-05-13 P. Wächter , V. Meden , K. Schönhammer

One-dimensional (1D) quantum wires, which are functionalized by magnetic ad-atoms, can host ballistic helical transport. Helicity protects transport from an undesirable influence of material imperfections, and it makes the magnetically…

强关联电子 · 物理学 2020-10-14 F. Stäbler , A. M. Tsvelik , O. M. Yevtushenko

We study thermal transport in a one-dimensional (1d) interacting electron gas, employing the Luttinger liquid model. Both thermal conductance and thermopower are analyzed for a pure 1d gas and with impurities. The universal ratio of…

凝聚态物理 · 物理学 2009-10-28 C. L. Kane , Matthew P. A. Fisher

Using low-resistance electrical contacts, we have measured the intrinsic high-field transport properties of metallic single-wall carbon nanotubes. Individual nanotubes appear to be able to carry currents with a density exceeding 10^9…

介观与纳米尺度物理 · 物理学 2009-10-31 Zhen Yao , Charles L. Kane , Cees Dekker

Quantum-confined semiconductor structures are the cornerstone of modern-day electronics. Spatial confinement in these structures leads to formation of discrete low-dimensional subbands. At room temperature, carriers transfer among different…

介观与纳米尺度物理 · 物理学 2009-08-14 I. Knezevic , E. B. Ramayya , D. Vasileska , S. M. Goodnick

Using bosonization we derive the dc conductance G(L,T) of an interacting quantum wire with good contacts including current relaxing backscattering and Umklapp processes. Our result yields the dependence of the conductance on length L and…

强关联电子 · 物理学 2013-02-01 N. Sedlmayr , P. Adam , J. Sirker

In this paper we review recent theoretical results for transport in a one-dimensional (1d) Luttinger liquid. For simplicity, we ignore electron spin, and focus exclusively on the case of a single-mode. Moreover, we consider only the effects…

介观与纳米尺度物理 · 物理学 2008-02-03 Matthew P. A. Fisher , Leonid I. Glazman

The transport properties of a tunnel barrier in a one-dimensional wire are investigated at finite voltages and temperatures. We generalize the Luttinger model to account for finite ranges of the interaction. This leads to deviations from…

介观与纳米尺度物理 · 物理学 2009-10-30 Margit Steiner , Wolfgang Häusler

This review summarizes the current studies of the thermal transport properties of one-dimensional (1D) carbon nanomaterials and nanoarchitectures. Considering different hybridization states of carbon, emphases are laid on a variety of 1D…

材料科学 · 物理学 2018-03-20 Haifei Zhan , Yuantong Gu