TY  - JOUR
AU  - Rütten, Lisa M.
AU  - Schmid, Harald
AU  - Liebhaber, Eva
AU  - Franceschi, Giada
AU  - Yazdani, Ali
AU  - Reecht, Gaël
AU  - Rossnagel, Kai
AU  - von Oppen, Felix
AU  - Franke, Katharina J.
TI  - Wave Function Engineering on Superconducting Substrates: Chiral Yu-Shiba-Rusinov Molecules
JO  - ACS nano
VL  - 18
IS  - 44
SN  - 1936-0851
CY  - Washington, DC
PB  - Soc.
M1  - PUBDB-2024-06750
SP  - 30798-30804
PY  - 2024
AB  - Magnetic adatoms on superconductors give rise to Yu-Shiba-Rusinov (YSR) states that hold considerable interest for the design of topological superconductivity. Here, we show that YSR states are also an ideal platform to engineer structures with intricate wave function symmetries. We assemble structures of iron atoms on the quasi-two-dimensional superconductor 2H-NbSe<sub>2</sub>. The Yu-Shiba-Rusinov wave functions of individual atoms extend over several nanometers enabling hybridization even at large adatom spacing. We show that the substrate can be exploited to deliberately break symmetries of the adatom structure leading to hybridized YSR states exhibiting symmetries that cannot be found in orbitals of iso-structural planar molecules in the gas phase. We exploit this potential by designing chiral YSR wave functions of triangular adatom structures. Our results significantly expand the range of interesting quantum states that can be engineered using arrays of magnetic adatoms on superconductors.
LB  - PUB:(DE-HGF)16
C6  - pmid:39453726
UR  - <Go to ISI:>//WOS:001343844000001
DO  - DOI:10.1021/acsnano.4c10998
UR  - https://bib-pubdb1.desy.de/record/617389
ER  -