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Induced magnetic ordering in molecular monolayers

English title Induced magnetic ordering in molecular monolayers
Applicant Jung Thomas
Number 113718
Funding scheme Project funding (Div. I-III)
Research institution Mikro- und Nanotechnologie Paul Scherrer Institut
Institution of higher education Paul Scherrer Institute - PSI
Main discipline Condensed Matter Physics
Start/End 01.02.2008 - 31.01.2011
Approved amount 159'800.00
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Keywords (7)

Surface science; Molecular Magnetism; Molecular Adsorption and Magnetic Coupling; Spectroscopy and x-ray; Scanning Tunneling Microscopy; X-ray Absorption Spectroscopy; X-ray Magnetic Circular Dichroism

Lay Summary (English)

Lead
Lay summary
Chemically tunable molecular magnets exhibit new and attractive properties, particularly in the field of spintronics. In the here proposed research work, the magnetic interaction between a magnetized thin film cobalt substrate and adsorbed manganese(III)-tetraphenylporphyrin chloride (MnTPPCl) molecules is to be studied by X-ray magnetic circular dichroism (XMCD) at the Swiss Light Source (SLS) and by laboratory based complementary surface science techniques. The proposed work starts from the recent observation of induced magnetic ordering of a molecular monolayer as recently published by the proposing research group and tries to establish a microscopic understanding on the basis of well defined, atomically well controlled samples. The adsorption of porphyrin molecules at step and kink vs. terrace sites as well as the degree of magnetization on perpendicularly magnetized Co(0001) single crystal surfaces and ;in-plane’ magnetized ultra-thin Co(0001) films on W(110) shall be exploited by combination of XMCD at the SLS and molecular resolution STM.

Thus, the here proposed experiments will shed some light at the complex behavior of molecular magnet interfaces. This understanding is prerequisite to the design of organo-magnetic interfaces in a similar way to conventional ‘hard’ magnetic layers and applications thereof.
Direct link to Lay Summary Last update: 21.02.2013

Responsible applicant and co-applicants

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Associated projects

Number Title Start Funding scheme
121461 Scanning Tunneling Microscopy and Spectroscopy at variable Temperatures for the physical and chemical investigation of surface mounted supra-molecular assemblies. 01.07.2008 R'EQUIP
121344 PEARL: A new bending-magnet endstation for state-of-the-art X-ray Photoelectron Diffraction combined with Scanning Tunneling Microscopy characterization at the Swiss Light Source 01.10.2009 R'EQUIP
132868 Controlling Spins in Molecular Adsorbates by a Chemical Switch 01.02.2011 Project funding (Div. I-III)
132868 Controlling Spins in Molecular Adsorbates by a Chemical Switch 01.02.2011 Project funding (Div. I-III)

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