Atomic control of thin film growth by PVD - new materials for fundamental research and applications Dr. Alexandre Fête (UNIGE) GCC OpenLab @ UNIGE COUCHES MINCES FONCTIONNELLES Jeudi 29 janvier 2015
The laboratory Prof. J.-M. Triscone Visitor Permanent collaborators Post-docs Dr. M. Viret Dr. S. Gariglio Dr. C. Lichtensteiger Dr. M. Gibert Dr. W. Liu Dr. A. Fête PhD students Technician M. Lopes M. Boselli S. Catalano S. Fernandez J. Fowlie D. Li
Applications of thin film coating Global Physical Vapor Deposition Market Expected to Reach USD 20.45 Billion by 2019 source : Transparency Market Research
Pulsed laser deposition Molecular Beam Epitaxy (PLD) (MBE) The main PVD technics Sputtering From PVD product
Pulsed laser deposition Molecular Beam Epitaxy (PLD) (MBE) The main PVD technics Sputtering From PVD product
Pulsed laser deposition Molecular Beam Epitaxy (PLD) (MBE) The main PVD technics Sputtering From PVD product
Pulsed laser deposition Molecular Beam Epitaxy (PLD) (MBE) The main PVD technics Sputtering From PVD product
The main PVD technics Molecular Beam Epitaxy (MBE) Sputtering Pulsed laser deposition (PLD) From Heinz Maier-Leibnitz Zentrum and Universidad Autonoma de Madrid
The RHEED technique From PVD product and Prof. M. Lippmaa
Post-growth checks S. Gariglio, et al. J. Phys.: Condens. Matter 21 , 164213 (2009).
Let’s build our material layer by layer ! M. Gabay et J.-M. Triscone Pour la Science 79 (2013).
The perovskite family ab-initio calculations (here 1/1 superlattice of BiFeO 3 /LaFeO 3 ) ABO 3 Z Zanolli, et al. PRB 88 , 060102 (2013). P . Zubko, et al. Annu. Rev. Condens. Matter Phys. 2 , 141 (2011).
New materials - 1st example LaAlO3 insulator SrTiO3 insulator STEM by L. Fitting-Kourkoutis, D. A. Muller Cornell
New materials - 1st example LaAlO3 insulator ! conductor ! SrTiO3 insulator Othomo and Hwang Nature 427 , 423 (2004)
New materials - 1st example LaAlO3 insulator 500 400 ! superconductor ! R sheet ( Ω / � ) 300 200 100 SrTiO3 0 insulator 200 300 400 500 600 T (mK) Reyren et al. Science 317 , 1196 (2007)
New materials - 1st example LaAlO3 insulator ! tunable superconductor ! SrTiO3 insulator Caviglia et al. Nature 456 , 624 (2008)
New materials - 1st example LaAlO3 insulator sensitive to atmospheric conditions SrTiO3 insulator N. Y. Chan et al. Adv. Mat. 26 , 5962 (2014)
New materials - 2nd example PbTiO3 ferroelectric paraelectric with SrTiO3 huge dielectric constant A. Torres-Pardo, et al. PRB 84 , 220102 (2011)
Mn- DF La- Mn- Ni- La- online M 5 L 2,3 L 2 Ni LaNiO3 metal LaMnO3 ferromagnet Courtesy of M. Gibert
LaNiO3 exchange bias LaMnO3 M. Gibert, et al. Nat. Mat. 11 , 195 (2012)
New materials We investigate many other systems • Superconductivity in artificial heterostructures • Artificial ferroelectrics (AVO 3 /A’VO 3 ) • …
Conclusion • PVD technology is able to build films almost atom by atom • In this way materials with novel properties can be engineered
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