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WMI Research

Superconductivity and Superfluidity
Superconducting Quantum Circuits and Nanomechanics
Magnetism and Spintronics
Organic Metals
Cryogenics
Materials

MCQST
NIM
TRR 80
QMiCS
MagQSens
SPP 2137
SPP 1601
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IMPRS-QST

Magnetism & Spintronics: Oxide Thin Films for Spintronics

 

Thin Film Laser Epitaxy by Laser-MBE

Laser molecular beam epitaxy (laser-MBE), also known as pulsed laser deposition (PLD), allows growing oxide thin films with crystalline quality approaching semiconductor standards. Moreover, in close analogy to the well-known GaAs/AlAs heteroepitaxy it is possible to grow complex heterostructures composed of different oxides on suitable substrates in a layer-by-layer or block-by-block mode. We are steadily working on ...

  • Fabrication of high-quality epitaxial oxide thin films and heterostructures on different single crystalline substrates
  • Development of multifunctional materials and devices based on heteroepitaxial oxide thin film multilayers
   
Recent publications

Magnetically Ordered Insulators for Advanced Spintronics
Matthias Althammer, Sebastian T.B. Goennenwein, Rudolf Gross
in Towards Oxide Electronics: a Roadmap, Applied Surface Science 482 , 48-52 (2019)

 

Laser molecular beam epitaxy of ZnO thin films and heterostructures
M. Opel, S. Geprägs, M. Althammer, T. Brenninger, R. Gross
J. Phys. D: Appl. Phys. 47, 034002 (2014)

 

Y3Fe5O12 (png 43k)

Rare-Earth Iron Garnets

Yttrium iron garnet (YIG, Y3Fe5O12) is one of the rare electrically insulating ferromagnets. It has become particularly important for the investigation of pure spin currents since the spin transport in YIG is not influenced by a simultaneous propagation of charges. Replacing Y3+ by magnetic rare earth elements like Gd3+ introduces another magnetic sublattice and causes magnetic compensation effects. We investigate ...

  • Magnetic structure of rare earth (RE) iron garnets (RE3Fe5O12)
  • Proximity magnetism of normal metals (e.g. Pt) deposited on RE3Fe5O12
  • RE3Fe5O12 as a source or sink for spin currents
   
Recent publications

Magnetically Ordered Insulators for Advanced Spintronics
Matthias Althammer, Sebastian T.B. Goennenwein, Rudolf Gross
in Towards Oxide Electronics: a Roadmap, Applied Surface Science 482 , 48-52 (2019)

 

Untangling the contributions of cerium and iron to the magnetism of Ce-doped yttrium iron garnet
Blai Casals, Marina Espínola, Rafael Cichelero, Stephan Geprägs, Matthias Opel, Rudolf Gross, Gervasi Herranz, Josep Fontcuberta
Appl. Phys. Lett. 108, 102407 (2016)

 

 

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