Berry-Phase Induced Kondo Effect in Single-Molecule Magnets

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Kondo effect in SMMs: Berry phase oscillations!The tunnel splitting is an oscillating function ofthe transverse magnetic field due to the Berryphase interference.123Htwo-fold degeneracypoints (Kondo effect)H1< H 2 < H 3GConsequences:1) The Kondo peak splitting is a non-monotonicfunction of the transverse magnetic field.0eV2) The period of Berry oscillations is renormalized by the Kondo effect(strongly temperature dependent, with a universal function form).
Kondo effect in SMMs: Ni 4, the best candidate[Ni 4(ROH) 4L 4O 12] (R=Me,Et) Sieber et al. (2005)Spin tunneling splitting Δ (numerical simulations)=!E S,-S(H ) [K]10 010 -110 -210 -310 -4" = 34 #T / T K= 2T / T K= 3T / T K= 10!E S,-S(H ) [K]10 010 -110 -210 -310 -4" = 41 #0 1 2 3 4 5 6 7H [T]
Page 1 and 2: Berry-Phase Induced Kondo Effect in
Page 3 and 4: Single-molecule electronics:molecul
Page 5 and 6: Multiwire chip: Trial and error app
Page 7: Early experiments: Non magnetic mol
Page 10: How do QTM and Berry phase interfer
Page 13 and 14: Kondo effect: The case of quantum d
Page 15 and 16: Unconventional Kondo effect in SMMs
Page 17 and 18: Kondo effect in SMMs: microscopic d
Page 19: Kondo effect in SMMs: ConductanceLi
Page 23 and 24: Some Questions and Challenges for t

Berry-Phase Induced Kondo Effect in Single-Molecule Magnets

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