Manipulating the Kondo resonance through quantum size effects.
Manipulating the Kondo effect by quantum confinement has been achieved by placing magnetic molecules on silicon-supported nanostructures. The Kondo resonance of individual manganese phthalocyanine (MnPc) molecules adsorbed on the top of Pb islands was studied by scanning tunneling spectroscopy. Oscillating Kondo temperatures as a function of film thickness were observed and attributed to the formation of the thickness-dependent quantum-well states in the host Pb islands. The present approach provides a technologically feasible way for single spin manipulation by precise thickness control of thin films.
Fu
Ying-Shuang
YS
Department of Physics, Tsinghua University, Beijing 100084, China.
Ji
Shuai-Hua
SH
Chen
Xi
X
Ma
Xu-Cun
XC
Wu
Rui
R
Wang
Chen-Chen
CC
Duan
Wen-Hui
WH
Qiu
Xiao-Hui
XH
Sun
Bo
B
Zhang
Ping
P
Jia
Jin-Feng
JF
Xue
Qi-Kun
QK