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We calculate the quantum correction to the classical conductance of a disordered mesoscopic normal-superconducting (NS) junction in which the electron spatial and spin degrees of freedom are coupled by an appreciable spin orbit interaction.…

Condensed Matter · Physics 2009-10-28 Keith Slevin , Jean-Louis Pichard , P. A. Mello

We investigate the quasiparticle interference (QPI) in Fe-based superconductors in both the $s_{++}$-wave and $s_{\pm}$-wave superconducting states on the basis of the five-orbital model. In the octet model for cuprate superconductors with…

Superconductivity · Physics 2015-08-06 Youichi Yamakawa , Hiroshi Kontani

Quasiparticle interference (QPI) of the electronic states has been widely applied in scanning tunneling microscopy (STM) to analyze the electronic band structure of materials. Single-defect induced QPI reveals defect-dependent interaction…

Materials Science · Physics 2020-07-08 Wenhao Zhang , Kunliang Bu , Fangzhou Ai , Zongxiu Wu , Ying Fei , Yuan Zheng , Jianhua Du , Minghu Fang , Yi Yin

We study the dynamical quasiparticle scattering by spin and charge fluctuations in Fe-based pnictides within a five-orbital model with on-site interactions. The leading contribution to the scattering rate is calculated from the second-order…

Superconductivity · Physics 2011-05-25 A. F. Kemper , M. M. Korshunov , T. P. Devereaux , J. N. Fry , H-P. Cheng , P. J. Hirschfeld

Recent STM experiments and theoretical considerations have highlighted the role of interaction-driven orbital selectivity in FeSe, and its role in generating the extremely anisotropic superconducting gap structure in this material. We study…

Superconductivity · Physics 2019-01-08 Andreas Kreisel , Brian M. Andersen , P. J. Hirschfeld

Relaxation of a non-equilibrium state in a disordered metal with a spin-dependent electron energy distribution is considered. The collision integral due to the electron-electron interaction is computed within the approximation of a…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 O. V. Dimitrova , V. E. Kravtsov

We propose a way to determine the pairing state of the iron pnictide superconductors exploiting the momentum (Q) scan of the neutron scattering data. We investigate the spin susceptibility in the s+- and s++ superconducting states for…

Superconductivity · Physics 2012-05-29 Yuki Nagai , Kazuhiko Kuroki

Impurity bound states and quasi-particle scattering from these can serve as sensitive probes for identifying the pairing state of a superconducting condensate. We introduce and discuss defect bound state quasi-particle interference…

Superconductivity · Physics 2017-10-26 Shun Chi , W. N. Hardy , Ruixing Liang , P. Dosanjh , Peter Wahl , S. A. Burke , D. A. Bonn

We present a theoretical study of elastic spin-dependent electron scattering caused by a nonuniform Rashba spin-orbit coupling strength. Using the spin-generalized method of partial waves the scattering amplitude is exactly derived for the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 András Pályi , Csaba Péterfalvi , József Cserti

The cuprate high-temperature superconductors are known to host a wide array of effects due to interactions and disorder. In this work, we look at some of the consequences of these effects which can be visualized by scanning tunneling…

Superconductivity · Physics 2018-10-02 Miguel Antonio Sulangi , Jan Zaanen

We quantify the effect of the spin-orbit interaction on the Rydberg-like series of image state electrons at the (111) and (001) surface of Ir, Pt and Au. Using relativistic multiple-scattering methods we find Rashba-like dispersions with…

Materials Science · Physics 2007-05-23 J R McLaughlan , E M Llewellyn-Samuel , S Crampin

The effects of spin-orbit scattering of conduction electrons in the Kondo regime are investigated theoretically. It is shown that due to time-reversal symmetry, spin-orbit scattering does not suppress the Kondo effect, even though it breaks…

Condensed Matter · Physics 2009-10-22 Yigal Meir , Ned S. Wingreen

Effect of spin-orbit scattering on quantum diffusive transport of two-dimensional massive Dirac fermions is studied by the diagrammatic technique. The quantum diffusion of massive Dirac fermions can be viewed as a singlet Cooperon in the…

Mesoscale and Nanoscale Physics · Physics 2012-09-07 Wen-Yu Shan , Hai-Zhou Lu , Shun-Qing Shen

One of the most fundamental properties of electromagnetism and special relativity is the coupling between the spin of an electron and its orbital motion. This is at the origin of the fine structure in atoms, the spin Hall effect in…

Mesoscale and Nanoscale Physics · Physics 2015-04-22 V. G. Sala , D. D. Solnyshkov , I. Carusotto , T. Jacqmin , A. Lemaître , H. Terças , A. Nalitov , M. Abbarchi , E. Galopin , I. Sagnes , J. Bloch , G. Malpuech , A. Amo

We report measurements of spin-dependent scattering of conduction electrons by neutral donors in an accumulation-mode field-effect transistor formed in isotopically enriched silicon. Spin-dependent scattering was detected using electrically…

Materials Science · Physics 2009-11-13 C. C. Lo , J. Bokor , T. Schenkel , A. M. Tyryshkin , S. A. Lyon

The conservation of the photon total angular momentum in the incident direction in an axially symmetric scattering process is a very well known fact. Nonetheless, the re-distribution of this conserved magnitude into its spin and orbital…

We demonstrate a general, computer automated procedure that inverts the q-space scattering data measured by spectroscopic imaging scanning tunneling microscopy (SI-STM) to determine the k-space scattering structure. This allows a detailed…

Superconductivity · Physics 2013-07-29 Jacob W. Alldredge , Eduardo M. Calleja , Jixia Dai , H. Eisaki , S. Uchida , Kyle McElroy

We develop the full t-matrix theory of quasiparticle interference (QPI) for non-centrosymmetric (NCS) superconductors with Rashba spin-orbit coupling. We give a closed solution for the QPI spectrum for arbitrary combination and strength of…

Superconductivity · Physics 2013-12-04 Alireza Akbari , Peter Thalmeier

We describe theoretically the process of multi-beam reflection in a two-dimensional electron system with a lateral potential barrier. Due to spin-orbital interaction, the reflection process leads to the formation of three beams with…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 A. O. Govorov , A. V. Kalameitsev , J. P. Dulka

We show that characteristics of the electron's form factor in two-dimensional materials are observable in quasiparticle interference (QPI) spectrum. We study QPI in twisted bilayer graphene using real-space tight-binding calculations…

Mesoscale and Nanoscale Physics · Physics 2025-09-16 D. -H. -Minh Nguyen , Francisco Guinea , Dario Bercioux