Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Kotetes, P."'
We show that the Josephson diode effect becomes possible when two coupled antiferromagnetic dimers of point-like magnetic adatoms are deposited on top of a Rashba superconductor. The degree of nonreciprocity is substantial when the arising Yu-Shiba-R
Externí odkaz:
http://arxiv.org/abs/2409.13027
Autor:
Huang, Yun-Peng, Kotetes, Panagiotis
We propose an alternative experimental protocol for the detection of doped Chern insulators and chiral superconductors. Our approach relies on coupling the target chiral system to adatom spins. Due to the substrate chirality, the adatom spins are exp
Externí odkaz:
http://arxiv.org/abs/2408.04578
Autor:
Assili, Mohamed, Kotetes, Panagiotis
Publikováno v:
Phys. Rev. B 109, 184307 (2024)
In this work, we discuss properties with no static counterpart arising in Floquet topological insulators with a dynamical chiral symmetry (DCS), i.e., a chiral symmetry which is present while driving. We explore the topological properties of Floquet
Externí odkaz:
http://arxiv.org/abs/2401.05697
Publikováno v:
Phys. Rev. B 109, 144503 (2024)
The superconducting diode effect may exist in bulk systems as well as in junctions when time-reversal and inversion symmetries are simultaneously broken. Magnetization gradients and textures satisfy both requirements and therefore also allow for supe
Externí odkaz:
http://arxiv.org/abs/2312.13857
Publikováno v:
Phys. Rev. Res. 6, 023256 (2024)
We bring forward a unified framework for the study of the superfluid stiffness and the quantum capacitance of superconducting platforms exhibiting conventional spin-singlet pairing. We focus on systems which in their normal phase contain topological
Externí odkaz:
http://arxiv.org/abs/2310.12223
Autor:
Kotetes, Panagiotis, Huang, Yun-Peng
Publikováno v:
Proc. SPIE 12656, Spintronics XVI, 126560T (28 September 2023)
We propose an alternative route to stabilize magnetic skyrmions which does not require Dzyaloshinkii-Moriya interactions, magnetic anisotropy, or an external Zeeman field. Our so-called magnetic skyrmion catalysis (MSC) solely relies on the emergence
Externí odkaz:
http://arxiv.org/abs/2310.08642
Publikováno v:
Phys. Rev. Res. 6, L022053 (2024)
We demonstrate that topological constraints do not only dictate the geometric part of the superfluid stiffness, but can also govern the total superfluid stiffness. By introducing a general adiabatic approach for superfluid responses, we showcase such
Externí odkaz:
http://arxiv.org/abs/2211.07676
Publikováno v:
Phys. Rev. B 108, 155310 (2023)
We explore the spin density and charge currents arising on the surface of a topological insulator and in a 2D Rashba metal due to magnetization gradients. For topological insulators a single interconversion coefficient controls the generation of both
Externí odkaz:
http://arxiv.org/abs/2210.07265
Autor:
Huang, Yun-Peng, Kotetes, Panagiotis
Publikováno v:
Phys. Rev. Research 5, 013125 (2023)
We propose an alternative route to stabilize magnetic skyrmion textures which does not require Dzyaloshinkii-Moriya interaction, magnetic anisotropy, or an external Zeeman field. Instead, it solely relies on the emergence of flux in the system's grou
Externí odkaz:
http://arxiv.org/abs/2208.07964
Autor:
Kotetes, Panagiotis
Publikováno v:
J. Phys.: Condens. Matter 34 174003 (2022)
In this work I demonstrate how to characterize topological phase transitions in BDI symmetry class superconductors (SCs) in 1D, using the recently introduced approach of Berry singularity markers (BSMs). In particular, I apply the BSM method to the c
Externí odkaz:
http://arxiv.org/abs/2112.03320