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相关论文: Lifshitz model in the presence of spin-orbit coupl…

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The quantum coherent coupling of completely different degrees of freedom is a challenging path towards creating new functionalities for quantum electronics. Usually the antagonistic coupling between spins of magnetic impurities and…

We consider a spin-orbit coupled particle confined in a quantum dot in a bath of impurity spins. We investigate the consequences of spin-orbit coupling on the interactions that the particle mediates in the spin bath. We show that in the…

介观与纳米尺度物理 · 物理学 2014-09-02 Peter Stano , Jaroslav Fabian , Igor Žutić

It is shown how the resonant states induced by a single spinless impurity in a d-wave superconductor evolve under the effect of an applied Zeeman magnetic field. Moreover, it is demonstrated that the spin-orbit coupling to the impurity…

超导电性 · 物理学 2009-11-07 C. Grimaldi

The rich order parameter of Spin Density Waves allows for unusual object of a complex topological nature: a half-integer dislocation combined with a semi-vortex of a staggered magnetization. It becomes energetically preferable to ordinary…

强关联电子 · 物理学 2007-05-23 N. Kirova , S. Brazovskii

We study a mobile quantum impurity, possessing internal rotational degrees of freedom, confined to a ring in the presence of a many-particle bosonic bath. By considering the recently introduced rotating polaron problem, we define the…

量子气体 · 物理学 2020-08-13 Mikhail Maslov , Mikhail Lemeshko , Enderalp Yakaboylu

We consider a one-dimensional (1D) wire along which single conduction electrons can propagate in the presence of two spin-1/2 magnetic impurities. The electron may be scattered by each impurity via a contact-exchange interaction and thus a…

量子物理 · 物理学 2009-11-13 F. Ciccarello , G. M. Palma , M. Zarcone , Y. Omar , V. R. Vieira

We study the local density of states (LDOS) of two-dimensional electrons in the presence of spin-orbit (SO) coupling. Although SO coupling has no effect on the average density of states, it manifests itself in the correlations of the LDOS.…

无序系统与神经网络 · 物理学 2009-11-10 V. M. Apalkov , M. E. Raikh , B. Shapiro

Observation of robust superconductivity in some of the iron based superconductors in the vicinity of a Lifshitz point where a spin density wave instability is suppressed as the {hole} band drops below the Fermi energy raise questions for…

超导电性 · 物理学 2016-08-30 Vivek Mishra , Douglas J. Scalapino , Thomas A. Maier

We study the unconventional superconducting correlations caused by a single isolated magnetic impurity in a conventional s-wave superconductor. Due to the local breaking of time-reversal symmetry, the impurity induces unconventional…

We study theoretically the effects of strong pinning centers on a charge density wave in the limit that the charge density wave coherence length is shorter than the average inter-impurity distance. An analysis based on a Ginzburg-Landau…

无序系统与神经网络 · 物理学 2015-05-26 Jun-ichi Okamoto , Andrew J. Millis

The rich order parameter of Spin Density Waves allows for an unusual object of a complex topological nature: a half-integer dislocation combined with a semi-vortex of the staggered magnetization. It becomes energetically preferable to…

强关联电子 · 物理学 2007-05-23 S. Brazovski , N. Kirova

Ingap states are commonly observed in semiconductors and are often well characterized by a hydrogenic model within the effective mass approximation. However, when impurities are strong, they significantly perturb all momentum eigenstates,…

介观与纳米尺度物理 · 物理学 2024-06-07 Raquel Queiroz , Roni Ilan , Zhida Song , B. Andrei Bernevig , Ady Stern

In this letter we study both ground state properties and the superfluid transition temperature of a spin-1/2 Fermi gas across a Feshbach resonance with a synthetic spin-orbit coupling, using mean-field theory and exact solution of two-body…

量子气体 · 物理学 2011-11-09 Zeng-Qiang Yu , Hui Zhai

We investigate magnetic properties induced by a spinless impurity in strongly correlated electron systems, i.e. the Hubbard model in the spatial dimension $D=1,2,$ and 3. For the 1D system exploiting the Bethe ansatz exact solution we find…

强关联电子 · 物理学 2009-10-31 Satoshi Fujimoto

We study the effect of impurities in inducing spin-orbit coupling in graphene. We show that the sp3 distortion induced by an impurity can lead to a large increase in the spin-orbit coupling with a value comparable to the one found in…

材料科学 · 物理学 2013-05-29 A. H. Castro Neto , F. Guinea

We examine the formation of localized states on a generalized nonlinear impurity located at, or near the surface of a semi-infinite 2D square lattice. Using the formalism of lattice Green functions, we obtain in closed form the number of…

斑图形成与孤子 · 物理学 2009-11-11 Mario I. Molina

We examine the effects of intra-environmental coupling on decoherence by constructing a low temperature spin--spin-bath model of an atomic impurity in a Debye crystal. The impurity interacts with phonons of the crystal through…

量子物理 · 物理学 2009-11-07 L. Tessieri , J. Wilkie

We develop a self-consistent theory describing the spin and spatial electron diffusion in the impurity band of doped semiconductors under the effect of a weak spin-orbit coupling. The resulting low-temperature spin-relaxation time and…

无序系统与神经网络 · 物理学 2016-11-02 Thomas Wellens , Rodolfo A. Jalabert

We consider a strongly spin-orbit-coupled metal, one of whose Fermi surfaces is close to a Lifshitz (topological) transition. Via a renormalization group analysis of the square-lattice Hubbard model with strong Rashba spin-orbit coupling,…

超导电性 · 物理学 2020-02-04 Matthew J. Trott , Chris A. Hooley

Spin-orbit coupling in solids is typically a single-body effect arising from relativity. In this work, we propose a spontaneous generation of spin-orbit coupling from symmetry breaking. A spin-dependent electron-phonon coupling model is…

强关联电子 · 物理学 2024-10-23 Xiangyu Zhang , Da Wang , Congjun Wu