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Non-exponential relaxation and quantum tunnel splitting in molecular magnet Fe8
Z. D. Chen, S. Q. Shen
Magnetic relaxation in molecular magnets under a sweeping field is studied by taking into account local stray fields. It is found that the randomness of local stray field leads to…
Quantum tunneling of two coupled single-molecular magnets
J. M. Hu, Z. D. Chen, S. Q. Shen
Two single-molecule magnets are coupled antiferromagnetically to form a supramolecule dimer. We study the coupling effect and tunneling process by means of the numerical exact diag…
Suppression of Quantum Phase Interference in Molecular Magnets Fe₈ with Dipolar-Dipolar Interaction
Zhi-De Chen, J. -Q. Liang, Shun-Qing Shen
Renormalized tunnel splitting with a finite distribution in the biaxial spin model for molecular magnets is obtained by taking into account the dipolar interaction of enviromental…
The WEBT BL Lac Campaign 2000
Massimo Villata, Claudia M. Raiteri
We present UBVRI light curves of BL Lacertae from May 2000 to January 2001, obtained by 24 telescopes in 11 countries. More than 15000 observations were performed in that period, w…