Engineering nodal topological phases in Ising superconductors by magnetic superstructures

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Engineering nodal topological phases in Ising superconductors by magnetic superstructures. / Głodzik, Szczepan; Ojanen, Teemu.

In: New Journal of Physics, Vol. 22, No. 1, 013022, 2020.

Research output: Contribution to journal › Review Article › Scientific › peer-review

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@article{c8e38ea06d274ccd8f44cce6a0d33cab,

title = "Engineering nodal topological phases in Ising superconductors by magnetic superstructures",

abstract = "Recently it was discovered that superconductivity in transition metal dichalcogenides (TMDs) is strongly affected by an out-of-plane spin-orbit coupling. In addition, new techniques of fabricating 2d ferromagnets on van der Waals materials are rapidly emerging. Combining these breakthroughs, we propose a realization of nodal topological superconductivity in TMDs by fabricating nanostructured ferromagnets with an in-plane magnetization on the top surface. The proposed procedure does not require application of external magnetic fields and applies to monolayer and multilayer (bulk) systems. The signatures of the topological phase include Majorana flat bandsthat can be directly observed by scanning tunneling microscopy techniques. We concentrate on NbSe2 and argue that the proposed structures demonstrating the nodal topological phase can be realized within existing technology.",

keywords = "magnetic impurities, nodal superconductors, topological superconductors",

author = "Szczepan Głodzik and Teemu Ojanen",

year = "2020",

doi = "10.1088/1367-2630/ab61d8",

language = "English",

volume = "22",

journal = "New Journal of Physics",

issn = "1367-2630",

publisher = "IOP Publishing",

number = "1",

}

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TY - JOUR

T1 - Engineering nodal topological phases in Ising superconductors by magnetic superstructures

AU - Głodzik, Szczepan

AU - Ojanen, Teemu

PY - 2020

Y1 - 2020

N2 - Recently it was discovered that superconductivity in transition metal dichalcogenides (TMDs) is strongly affected by an out-of-plane spin-orbit coupling. In addition, new techniques of fabricating 2d ferromagnets on van der Waals materials are rapidly emerging. Combining these breakthroughs, we propose a realization of nodal topological superconductivity in TMDs by fabricating nanostructured ferromagnets with an in-plane magnetization on the top surface. The proposed procedure does not require application of external magnetic fields and applies to monolayer and multilayer (bulk) systems. The signatures of the topological phase include Majorana flat bandsthat can be directly observed by scanning tunneling microscopy techniques. We concentrate on NbSe2 and argue that the proposed structures demonstrating the nodal topological phase can be realized within existing technology.

AB - Recently it was discovered that superconductivity in transition metal dichalcogenides (TMDs) is strongly affected by an out-of-plane spin-orbit coupling. In addition, new techniques of fabricating 2d ferromagnets on van der Waals materials are rapidly emerging. Combining these breakthroughs, we propose a realization of nodal topological superconductivity in TMDs by fabricating nanostructured ferromagnets with an in-plane magnetization on the top surface. The proposed procedure does not require application of external magnetic fields and applies to monolayer and multilayer (bulk) systems. The signatures of the topological phase include Majorana flat bandsthat can be directly observed by scanning tunneling microscopy techniques. We concentrate on NbSe2 and argue that the proposed structures demonstrating the nodal topological phase can be realized within existing technology.

KW - magnetic impurities

KW - nodal superconductors

KW - topological superconductors

U2 - 10.1088/1367-2630/ab61d8

DO - 10.1088/1367-2630/ab61d8

M3 - Review Article

VL - 22

JO - New Journal of Physics

JF - New Journal of Physics

SN - 1367-2630

IS - 1

M1 - 013022

ER -

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