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We study a model of an electron on a cylindrical surface, which is coupled to the torsion field due to a dislocation along the axis of the cylinder. We discuss the effect of this torsion field on the energy spectrum of the electrons and…

强关联电子 · 物理学 2015-06-23 Debabrata Sinha

We study spin-fluctuation mediated divergent superconducting fluctuations in a Luttinger liquid proximity-coupled to a spin chain. Our study provides insight into how spin fluctuations can induce superconductivity in a strongly correlated…

强关联电子 · 物理学 2022-12-12 Niels Henrik Aase , Asle Sudbø

Electronic transport in a one-dimensional mesoscopic ring threaded by a magnetic flux is studied in presence of Rashba and Dresselhaus spin-orbit interactions. A completely analytical technique within a tight-binding formalism unveils the…

介观与纳米尺度物理 · 物理学 2011-08-30 Santanu K. Maiti , Moumita Dey , Shreekantha Sil , Arunava Chakrabarti , S. N. Karmakar

The effect of Rashba spin-orbit interaction in quantum wires with hard-wall boundaries is discussed. The exact wave function and eigenvalue equation are worked out pointing out the mixing between the spin and spatial parts. The spectral…

介观与纳米尺度物理 · 物理学 2007-05-23 C. A. Perroni , D. Bercioux , V. M. Ramaglia , V. Cataudella

We show that the combination of a Dresselhaus interaction and a spatially periodic Rashba interaction leads to the formation of a helical liquid in a quantum wire when the electron-electron interaction is weakly screened. The effect is…

强关联电子 · 物理学 2015-06-17 George I. Japaridze , Henrik Johannesson , Mariana Malard

We show that Rashba spin-orbit coupling may result in an energy gap in the spectrum of electrons in a two-mode quantum wire if a suitable confining potential is chosen. This leads to a dip in the conductance and a spike in the spin current…

介观与纳米尺度物理 · 物理学 2014-02-03 K. E. Nagaev , A. S. Goremykina

We propose a mechanism for spin polarized photocurrent generation in quantum wires. The effect is due to the combined effect of Rashba spin-orbit interaction, external magnetic field and microwave radiation. The time-independent…

介观与纳米尺度物理 · 物理学 2007-05-23 Yuriy V. Pershin , Carlo Piermarocchi

Indirect exchange interaction between magnetic impurities in one dimensional systems is a matter of long discussions since Kittel has established that in the asymptotic limit it decays as the inverse of distance x between the impurities. In…

介观与纳米尺度物理 · 物理学 2019-03-29 Joelson F. Silva , E. Vernek

We investigate the production of spin-polarized currents in corrugated graphene nanoribbons. Such corrugations are modeled as multiple regions with Rashba spin-orbit interactions, where concave and convex curvatures are treated as Rashba…

介观与纳米尺度物理 · 物理学 2020-07-08 Hernán Santos , A. Latgé , L. Brey , Leonor Chico

The spin Edelstein effect has proven to be a promising phenomenon to generate spin polarization from a charge current in systems without inversion symmetry. In recent years, a current-induced orbital magnetization, called orbital Edelstein…

介观与纳米尺度物理 · 物理学 2024-01-17 Sergio Leiva M. , Jürgen Henk , Ingrid Mertig , Annika Johansson

It is shown that the recent Comment [cond-mat/0306019] by Y. Yu on the above article is not substantiated.

介观与纳米尺度物理 · 物理学 2007-05-23 Wolfgang Häusler

We demonstrate that spin current can be generated by an ac voltage in a one-channel quantum wire with strong repulsive electron interactions in the presence of a non-magnetic impurity and uniform static magnetic field. In a certain range of…

介观与纳米尺度物理 · 物理学 2007-08-28 Bernd Braunecker , D. E. Feldman , Feifei Li

The spin dynamics in a quantum wire with a Rashba spin orbit interaction (SOI) is shown to be controllable via sub-picosecond electromagnetic pulses shaped appropriately. If the light polarization vector is along the wire's direction, the…

介观与纳米尺度物理 · 物理学 2015-05-20 Zhen-Gang Zhu , Cheng-Long Jia , Jamal Berakdar

Starting from a continuum constituted by charged tops, we formulate the classical counterpart of a previously obtained covariant continuity-like equation for the spin current. Such a formulism provides an intuitive picture to elucidate the…

介观与纳米尺度物理 · 物理学 2008-04-19 Pei-Qing Jin , You-Quan Li

Suspended nanowires are shown to provide mechanically-controlled coherent mixing/splitting of the spin states of transmitted electrons, caused by the Rashba spin-orbit interaction. The sensitivity of the latter to mechanical bending makes…

介观与纳米尺度物理 · 物理学 2013-10-30 R. I. Shekhter , O. Entin-Wohlman , A. Aharony

We give a brief introduction to Luttinger liquids and to the phenomena of electronic transport or conductance in quantum wires. We explain why the subject of transport in Luttinger liquids is relevant and fascinating and review some…

强关联电子 · 物理学 2009-10-31 Sumathi Rao

We consider the current induced in a quantum wire by external electromagnetic radiation. The photocurrent is caused by the interplay of spin-orbit interaction (Rashba and Dresselhaus terms) and external in-plane magnetic field. We calculate…

介观与纳米尺度物理 · 物理学 2007-05-23 A. Fedorov , Yu. V. Pershin , C. Piermarocchi

We discuss by analytic means the theory of the high-density limit of the unpolarized two-dimensional electron liquid in the presence of Rashba or Dresselhaus spin-orbit coupling. A generalization of the ring-diagram expansion is performed.…

介观与纳米尺度物理 · 物理学 2015-05-19 Stefano Chesi , Gabriele F. Giuliani

We study the influence of spin on the quantum interference of interacting electrons in a single-channel disordered quantum wire within the framework of the Luttinger liquid (LL) model. The nature of the electron interference in a spinful LL…

强关联电子 · 物理学 2008-11-08 A. G. Yashenkin , I. V. Gornyi , A. D. Mirlin , D. G. Polyakov

We study effects of a gate-controlled Rashba spin-orbit coupling to quantum spin-Hall edge states in HgTe quantum wells. A uniform Rashba coupling can be employed in tuning the spin orientation of the edge states while preserving the…

介观与纳米尺度物理 · 物理学 2011-07-21 Jukka I. Väyrynen , Teemu Ojanen