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A chiral quantum Hall (QH) edge state placed in proximity to an s-wave superconductor experiences induced superconducting correlations. Recent experiments have observed the effect of proximity-coupling in QH edge states through signatures…

Mesoscale and Nanoscale Physics · Physics 2023-02-02 Andreas B. Michelsen , Patrik Recher , Bernd Braunecker , Thomas L. Schmidt

A characteristic feature of the BCS theory of superconductivity is the quantum-mechanical coherence of particle and hole states. Direct observation of particle-hole coherence in unusual superconducting materials is a strong indication of…

Superconductivity · Physics 2010-11-16 D. Rainer , H. Burkhardt , M. Fogelstrom , J. A. Sauls

We develop a self-consistent approach for calculating the local impedance at a rough surface of a chiral $p$-wave superconductor. Using the quasiclassical Eilenberger-Larkin-Ovchinnikov formalism, we numerically find the pair potential,…

We study the influence of Born impurity scattering on the zero-energy Andreev bound states near the surface of a d-wave superconductor with and without an externally applied magnetic field. Without an external magnetic field we show that…

Superconductivity · Physics 2008-09-27 A. Zare , A. Markowsky , T. Dahm , N. Schopohl

The pair-potential and current density around a single vortex of the two-dimensional chiral p-wave superconductor with ${\mib d}={\mib z}(p_x \pm \iu p_y)$ are determined self-consistently within the quasiclassical theory of…

Superconductivity · Physics 2009-11-07 Yusuke Kato , Nobuhiko Hayashi

We experimentally investigate the magnetic field dependence of Andreev transport through a region of proximity-induced superconductivity in CoSi topological chiral semimetal. With increasing parallel to the CoSi surface magnetic field, the…

Mesoscale and Nanoscale Physics · Physics 2021-07-15 V. D. Esin , Yu. S. Barash , A. V. Timonina , N. N. Kolesnikov , E. V. Deviatov

Engineering chiral $p$-wave superconductivity in semiconductor structures offers fascinating ways to obtain and study Majorana modes in a condensed matter context. Here, we theoretically investigate chiral $p$-wave superconductivity in…

Mesoscale and Nanoscale Physics · Physics 2015-04-15 Benedikt Scharf , Igor Žutić

To investigate the different vortex structure between two chiral pairing p_x +(-) i p_y, we calculate the pair potential, the internal field, the local density of states, and free energy in the vortex lattice state based on the…

Superconductivity · Physics 2016-08-31 Masanori Ichioka , Kazushige Machida

Motivated by Sr2RuO4 the magnetic properties of edge states in a two-band spin-triplet superconductor with electron- and hole-like Fermi surfaces are investigated assuming chiral p-wave pairing symmetry. The two bands correspond to the…

Strongly Correlated Electrons · Physics 2012-06-01 Yoshiki Imai , Katsunori Wakabayashi , Manfred Sigrist

We discuss the stability of zero-energy states appearing in a dirty normal metal attached to a superconducting thin film with Dresselhaus [110] spin-orbit coupling under the in-plane Zeeman field. The Dresselhaus superconductor preserves an…

Superconductivity · Physics 2015-05-19 Satoshi Ikegaya , Yasuhiro Asano , Yukio Tanaka

We investigate the effect of surface disorder on the chiral surface states of a three-dimensional quantum Hall system. Utilizing a transfer-matrix method, we find that the localization length of the surface state along the magnetic field…

Mesoscale and Nanoscale Physics · Physics 2021-02-09 Chao Zheng , Kun Yang , Xin Wan

Sr$_{2}$RuO$_{4}$ (SRO) is the prime candidate for chiral $p$-wave superconductor with critical temperature $T_{c}(SRO)\sim$1.5 K. Chiral domains with opposite chiralities $p_{x}\pm ip_{y}$ were proposed, but yet to be confirmed. We measure…

Superconductivity · Physics 2017-05-24 He Wang , Jiawei Luo , Weijian Lou , Jian Wei , J. E. Ortmann , Z. Q. Mao , Y. Liu

We study a subgap quasiparticle spectrum in a mesoscopic disk of chiral superconductor. We find an exact expression for the spectrum of surface states localized at the disk edge. Considering an Abrikosov vortex placed at the center of a…

Superconductivity · Physics 2015-05-13 M. A. Silaev

Chiral $p$-wave superconducting state supports a rich spectrum of topological excitations different from those in conventional superconducting states. Besides domain walls separating different chiral states, chiral $p$-wave state supports…

Superconductivity · Physics 2016-04-21 Julien Garaud , Egor Babaev

We study impurity effects in vortex core of two-dimensional moderately clean su perconductors within the quasiclassical theory. The impurity scattering rate $\G amma(E)$ of the Andreev bound states in vortex core with +1 vorticity of p-wav…

Superconductivity · Physics 2009-10-31 Yusuke Kato

We theoretically study surface superconductivity in a nodal-line semimetal by combining a minimal tight-binding model with a layer-resolved Bogoliubov-de Gennes approach. In the normal state, the model realizes a bulk nodal loop and an…

Superconductivity · Physics 2026-03-23 Takeru Matsushima , Hiroki Tsuchiura

We study surface zero-energy flat bands in three-dimensional chiral superconductors with $p_z (p_x +ip_y)^{\nu}$-wave pairing symmetry ($\nu$ is a nonzero integer), based on topological numbers and tunneling conductance. It is shown that…

Superconductivity · Physics 2015-12-31 Shingo Kobayashi , Yukio Tanaka , Masatoshi Sato

We analyze the chiral p-wave superconductor in the low temperature region. The superconductor has a epsilon_{x} p_{x} + i epsilon_{y} p_{y}-wave gap in two dimensional space (2D). Near the second superconducting transition point, the system…

Superconductivity · Physics 2009-10-31 J. Goryo

The spectra of fermionic excitations, pairing correlations and edge currents confined near the boundary of a chiral p-wave superfluid are calculated to leading order in $\hbar/p_f\xi$. Results for the energy- and momentum-resolved spectral…

Superconductivity · Physics 2012-09-26 J. A. Sauls

Chiral $d$-wave superconductivity has been proposed in a number of different materials, but characteristic experimental fingerprints have been largely lacking. We show that quadruply quantized coreless vortices are prone to form and offer…

Superconductivity · Physics 2023-10-09 Patric Holmvall , Annica M. Black-Schaffer