New quantum boundary discovered: Spin size determines how the Kondo effect behaves
Phys.org • • science
Key Points:
- A research team led by Associate Professor Hironori Yamaguchi at Osaka Metropolitan University successfully realized a new type of Kondo necklace using an organic–inorganic hybrid material, enabling precise study of spin interactions in the Kondo effect.
- Their experiments showed that increasing the localized spin from 1/2 to 1 qualitatively changes the Kondo effect, with spin-1 moments stabilizing long-range magnetic order rather than suppressing magnetism as traditionally thought.
- This discovery overturns the conventional view that the Kondo effect always forms nonmagnetic singlet states, revealing that its function fundamentally depends on the size of the localized spin.
- By comparing spin-1/2 and spin-1 systems in a clean spin-only platform,
