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DFG Research Unit 1154 "Towards Molecular Spintronics"
Projects

DFG Research Unit 1154 „Towards Molecular Spintronics“

Projects:

Project Partners Institution
SP1
  • Part I: Thin films of redox-active high-spin molecules
  • Part II: Monolayers of redox-active high-spin molecules on conducting and ferromagnetic metals: Control of selfassembly and integration into devices
Kersting UL
SP2
  • Part I:Preparation of spin coated thin films and self-assembled monolayers of magnetic transition metal complexes
  • Part II: From the preparation of monomolecular layers to thin films of magnetic transition metal complexes towards their integration into spintronic devices
Rüffer, Lang TUC
SP3
  • Part I + II: Electronic structure, transport, and collective effects in molecular layered systems
Kortus,
Timm
TUF,
TUD
SP4
  • Part I + II: Electron spin resonance and magnetic studies
Kataev,
Klingeler,
Büchner
IFW,
UH
IFW/TUD
SP5
  • Part I: Spin dynamics in single molecules and thin films studied by nuclear probe spectroscopy
Klauss TUD
SP6
  • Part I + II: Scanning tunneling microscopy and spectroscopy of magnetic molecules
Hess,
Hietschold
IFW,
TUC
SP7
  • Part I: Spectroscopic studies of magnetic molecular materials
  • Part II: Spectroscopic studies of magnetic molecular materials and their interfaces
Knupfer,
Zahn
IFW,
TUC
SP8
  • Part I + II:From the preparation of molecular layers and their (magneto-)optical investigation towards laterally stacked devices
Salvan, Zahn, Hiller TUC
SP9
  • Part I: Transport through spin polarized semiconductor/molecule/semiconductor tunnel junctions
  • Part II: Vertical magneto-resistive devices made from hybrid metal/molecules/metal multi-layer systems
Schmidt,
Hess
IFW/TUC
IFW

 

SP1. | SP2. | SP3. | SP4. | SP5. | SP6. | SP7. | SP8. | SP9. | [close]

SP5: Spin dynamics in single molecules and thin films studied by nuclear probe spectroscopy

In this project we study the magnetic properties of new molecular magnets in bulk crystals and in thin films and monolayers on metallic and semiconducting substrates by means of local probe spectroscopy. For bulk crystals besides a determination of the ground state spin, the magnetic anisotropy, relaxation mechanisms, and the delocalization of the spin density on multinuclear transition metal complexes shall be determined to identify systems which may show molecule-substrate or inter-molecular interaction in thin films and monolayers. Using the high sensitive nuclear probes low energy muon spin relaxation, low-temperature high-field NMR and low-energy ?-NMR, the change of the magnetic properties in the deposited molecules and there interaction shall be studied. For systems containing Fe complexes also Mössbauer spectroscopy will be performed to study the magnetic properties and charge dynamics. The samples are synthesized in SP1 and SP2 and the results will be compared with DFT calculations in SP3 and ESR spectroscopy in SP4. The results on thin films are complementary to XMCD measurements in SP7 and the magneto-optical Kerr effect measurements performed in SP8.