Abstract
Subsequent to the similar [MnIII6CrIII]3+ single-molecule magnets (SMM), the recently studied [FeIII6CrIII]3+ structural type adsorbed thin films prepared on Si and gold-coated glass substrates have been experimentally studied by means of spin-polarized electron spectroscopy (SPES) and X-ray magnetic circular dichroism (XMCD) at the Fe L3,2 edge using circularly-polarized synchrotron radiation. The results are cross-compared to the corresponding data obtained from the recently published measurements with Mn-based SMM [1], also in terms of the local spin and orbital magnetic moments obtained. Furthermore, [FeIII6CrIII]3+ single crystals have been experimentally studied by means of magnetometry and X-ray diffraction.
Highlights
The amount of data produced and stored is increasing rapidly [2]
Subsequent to the similar [MnIII6CrIII]3+ single-molecule magnets (SMM), the recently studied [FeIII6CrIII]3+ structural type adsorbed thin films prepared on Si and gold-coated glass substrates have been experimentally studied by means of spin-polarized electron spectroscopy (SPES) and X-ray magnetic circular dichroism (XMCD) at the Fe L3,2 edge using circularly-polarized synchrotron radiation
Following the results recently obtained with [MnIII6CrIII]3+ SMM [1], the orientation of the primary core holes was retrieved for the results presented here using the LMV Auger decay (LM: inner shell quantum numbers; V: valence band) of the Fe constituents in the [FeIII6CrIII]3+ system
Summary
The amount of data produced and stored is increasing rapidly [2]. Whilst the storage of data relies mainly on hard disc drives, the fundamental limitations [3,4,5] of magnetic recording principles limit recording density to around 1 Tbit/inch2 [3,6]. Efforts are currently being made involving single molecules performing as memory cells, transistors and even logical devices [7,8,9], which could replace bulk magnetic and semiconductor devices. Single-molecule magnets (SMM) [11,12,13] offer a promising approach in terms of both quantum computing and information storage [14,15,16,17]. Single-molecule magnets need to be addressed individually to retrieve stored information; the first successful attempts at depositing
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