Journal
APPLIED PHYSICS LETTERS
Volume 105, Issue 3, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4891485
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Funding
- Swiss National Science Foundation [206021-117410, PZ00P2_142474]
- EPFL
- Swedish research council [350-2012-295]
- Deutsche Forschungsgemeinschaft [PO 1602/1-1, DU225/31-1]
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Low-temperature x-ray magnetic circular dichroism measurements on the endohedral single-molecule magnet DySc2N@C-80 at the Dy M-4,M-5 edges reveal a shrinking of the opening of the observed hysteresis with increasing x-ray flux. Time-dependent measurements show that the exposure of the molecules to x-rays resonant with the Dy M-5 edge accelerates the relaxation of magnetization more than off-resonant x-rays. The results cannot be explained by a homogeneous temperature rise due to x-ray absorption. Moreover, the observed large demagnetization cross sections indicate that the resonant absorption of one x-ray photon induces the demagnetization of many molecules. (c) 2014 AIP Publishing LLC.
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