TY - JOUR
T1 - Tailored Spin Coupling of Single-Molecule Magnets with a Single Charge-Density-Wave Metal Layer
AU - Zhang, Can
AU - Zhou, Fudi
AU - Jin, Heng
AU - Zhou, Lili
AU - Dong, Zhaoteng
AU - Ren, Mengya
AU - Zhang, Quanzhen
AU - Yang, Huixia
AU - Xu, Xiaolong
AU - Ma, Yuan Xiao
AU - Chen, Lan
AU - Jung, Thomas A.
AU - Huang, Bing
AU - Gao, Hong Jun
AU - Zhang, Yu
AU - Wang, Yeliang
N1 - Publisher Copyright:
© 2026 The Authors. Published by American Chemical Society
PY - 2026/3/25
Y1 - 2026/3/25
N2 - The interplay between spin and charge can give rise to remarkable quantum states of matter. A celebrated example is the Kondo effect, which occurs when localized magnetic impurities are screened by itinerant electrons. While significant advances have been made in probing the Kondo effect in systems consisting of magnetic impurities adsorbed on conventional bulk metals, its manifestation on unconventional metals with strong many-body interactions, particularly down to atomic-layer thickness, has hitherto remained unexplored. Here we investigate the charge and spin interaction between magnetic cobalt phthalocyanine (CoPc) molecules acting as spin-bearing Kondo impurities and a single, substrate supported layer of the charge-density-wave (CDW) metal H-NbSe2. Remarkably, we present unambiguous Kondo signatures on certain adsorption sites. We identify four distinct configurations depending on the position of the Co2+ ion relative to the atomic lattice and the CDW superlattice of NbSe2. We show precise control of the Kondo effect by reversible repositioning of the CoPc molecule between the different positions. Our scanning tunneling microscopy (STM) and spectroscopy (STS) measurements further reveal the symmetry breaking of the Kondo resonance, indicating a pronounced magnetic anisotropy in CoPc/NbSe2. More importantly, this interaction can induce local magnetism into the nonmagnetic NbSe2 layer, offering new possibilities for tailoring spin textures.
AB - The interplay between spin and charge can give rise to remarkable quantum states of matter. A celebrated example is the Kondo effect, which occurs when localized magnetic impurities are screened by itinerant electrons. While significant advances have been made in probing the Kondo effect in systems consisting of magnetic impurities adsorbed on conventional bulk metals, its manifestation on unconventional metals with strong many-body interactions, particularly down to atomic-layer thickness, has hitherto remained unexplored. Here we investigate the charge and spin interaction between magnetic cobalt phthalocyanine (CoPc) molecules acting as spin-bearing Kondo impurities and a single, substrate supported layer of the charge-density-wave (CDW) metal H-NbSe2. Remarkably, we present unambiguous Kondo signatures on certain adsorption sites. We identify four distinct configurations depending on the position of the Co2+ ion relative to the atomic lattice and the CDW superlattice of NbSe2. We show precise control of the Kondo effect by reversible repositioning of the CoPc molecule between the different positions. Our scanning tunneling microscopy (STM) and spectroscopy (STS) measurements further reveal the symmetry breaking of the Kondo resonance, indicating a pronounced magnetic anisotropy in CoPc/NbSe2. More importantly, this interaction can induce local magnetism into the nonmagnetic NbSe2 layer, offering new possibilities for tailoring spin textures.
UR - https://www.scopus.com/pages/publications/105033733243
U2 - 10.1021/jacs.5c21952
DO - 10.1021/jacs.5c21952
M3 - Article
C2 - 41817978
AN - SCOPUS:105033733243
SN - 0002-7863
VL - 148
SP - 11953
EP - 11961
JO - Journal of the American Chemical Society
JF - Journal of the American Chemical Society
IS - 11
ER -