Coupling magnetic molecules on a superconductor
Magnetic impurities have a dramatic effect on superconductivity by breaking the time-reversal symmetry and inducing so-called Yu-Shiba-Rusinov (YSR) low energy bound states within the superconducting gap. The spatial extent of YSR states is greatly enhanced in 2D systems, which should facilitate the formation of coupled states. We have observed YSR states on single cobalt phthalocyanine (CoPC) molecules on a 2D superconductor NbSe2 using low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS). We used STM lateral manipulation to create controlled CoPc dimers and demonstrate the formation of coupled YSR states.The demonstration of coupled YSR states is promising for realization of novel topological states predicted in YSR lattices.
The results are published in Nano Letters.
- Published:
- Updated:
Read more news
Broadband miniaturized spectrometer research receives QTF annual discovery award 2024
The clarity and compelling presentation of the research were one of the reasons why Doctoral Researcher Md Uddin earned the prize for the research paper, which was published in Nature Communications.
Robotics needs safe behavior patterns
Robotics and autonomous systems are developing rapidly. Algorithms that withstand disturbances and uncertainties in the system model and environment are critical for development.
Bike thefts on campus have increased - remember to lock your bike properly
With the spring, bike thefts on the Aalto University campus have increased