Advances on the Structuration, Integration and Magnetic Characterization of Single Molecule Magnets on Surfaces and Devices

N. Domingo, E. Bellido, D. Ruiz-Molina

Chem. Soc. Rev., 41, 258-302, (2012)
DOI: 10.1039/C1CS15096K

http://pubs.rsc.org/en/content/articlehtml/2012/cs/c1cs15096k

Abstract: This critical review represents a concise revision of the different experimental approaches so far followed for the structuration of molecular nanomagnets on surfaces, since the first reports on the field more than ten years ago. Afterwards, a presentation of the different experimental approaches followed for their integration in sensors is described. Such work involves mainly two families of sensors and devices, microSQUIDs sensors and three-terminal devices for single-molecule detection. Finally the last section is devoted to a detailed revision of the different experimental techniques that can be used for the magnetic characterization of these systems on surfaces, ranging from magnetic circular dichroism to magnetic force microscopy. The use of these techniques to characterize other nanostructured magnetic materials, such as nanoparticles, is also revised. The aim is to give a broad overview of the last advances achieved with these techniques and their potential and evolution over the next years.

Advances on the Structuration, Integration and Magnetic Characterization of Single Molecule Magnets on Surfaces and Devices
(a) Experimental set-up of the SHPM illustrating the disposal of sample, scanning head and magnetic fields. (b) STM image taken at T = 100 K showing the patterning of the surface. (c) Magnetic image taken at T = 100 K simultaneously with (b) and with an applied-field H = +70 kOe. The color scale indicates the strength of the detected stray field. The zero-field value of the scale is set to an arbitrary baseline. (d) Same as (c) but with reversed field (H = −70 kOe): notice that the color scale is reversed while the same spots are observed. Reprinted with permission from ref. 38. Copyright 2008 Wiley-VCH Verlag GmbH & Co. KGaA.