Coexistence of antiferromagnetism and superconductivity in Mn/Nb(110)

被引：14

作者：

Lo Conte, Roberto ^{[1
]}

Bazarnik, Maciej ^{[1
,2
]}

Palotas, Krisztian ^{[3
,4
,5
]}

Rozsa, Levente ^{[6
]}

Szunyogh, Laszlo ^{[4
,7
]}

Kubetzka, Andre ^{[1
]}

von Bergmann, Kirsten ^{[1
]}

Wiesendanger, Roland ^{[1
]}

机构：

[1] Univ Hamburg, Dept Phys, D-20355 Hamburg, Germany

[2] Poznan Univ Tech, Inst Phys, Piotrowo 3, PL-60965 Poznan, Poland

[3] Wigner Res Ctr Phys, Inst Solid State Phys & Opt, H-1525 Budapest, Hungary

[4] Budapest Univ Technol & Econ, Inst Phys, Dept Theoret Phys, Muegyet Rkp 3, H-1111 Budapest, Hungary

[5] Univ Szeged, MTA SZTE React Kinet & Surface Chem Res Grp, H-6720 Szeged, Hungary

[6] Univ Konstanz, Dept Phys, D-78457 Constance, Germany

[7] Budapest Univ Technol & Econ, MTA BME Condensed Matter Res Grp, H-1111 Budapest, Hungary

来源：

PHYSICAL REVIEW B | 2022年 / 105卷 / 10期

基金：

欧洲研究理事会;

关键词：

TOTAL-ENERGY CALCULATIONS; BOUND-STATES; SUPERCURRENTS; DRIVEN; SPINS; ATOM;

D O I：

10.1103/PhysRevB.105.L100406

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report on the structural, magnetic, and superconducting properties of single and double atomic layers of Mn on a clean and unreconstructed Nb(110) substrate. Low-temperature scanning tunneling spectroscopy measurements reveal a proximity-induced superconducting state and in-gap Yu-Shiba-Rusinov bands in the Mn thin films, which are found to grow pseudomorphically on the Nb surface. Spin-polarized scanning tunneling microscopy measurements reveal a c(2 x 2) antiferromagnetic (AFM) order in the Mn layers, with an out-of-plane spin orientation. First-principles density functional theory calculations confirm the experimentally observed magnetic state, which is understood as the consequence of a strong intralayer and interlayer nearest-neighbor AFM exchange coupling. These results are expected to be of importance for the design of superconducting AFM spintronic systems and quantum information technologies.

引用

页数：6

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