Spin magnetization of small metallic grains
arXiv:cond-mat/0402293 · doi:10.1103/PhysRevB.70.024521
Abstract
Small metallic grains which satisfy the conditions of the universal Hamiltonian are considered. It is shown that for such grains the effects of the interactions in the spin channel and in the Cooper channel on their spin magnetization are well separated, thus allowing the determination of the interaction parameters within this model. In particular, the existence of pairing correlations in small grains and the sign of the interaction in the Cooper channel can be uniquely determined.
minor corrections, published version
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- An Exact Solution for Spin and Charge Correlations in Quantum Dots: The Effect of Level Fluctuations and Zeeman Splitting
- Mesoscopic Stoner instability in open quantum dots: suppression of Coleman-Weinberg mechanism by electron tunneling
- A quantum dot close to Stoner instability: the role of Berry's Phase
- Spin fluctuations in quantum dots
- Statistics of Spin Fluctuations in Quantum Dots with Ising Exchange
- Inelastic electron scattering off a quantum dot in the cotunneling regime: the signature of mesoscopic Stoner instability
- U(1) and SU(2) quantum dissipative systems: The Caldeira-Leggett vs. the Amegaokar-Eckern-Schön approaches
- Tunneling density of states in quantum dots with anisotropic exchange
- Superconducting fluctuations in small grains - the Universal Hamiltonian and the reduced BCS model