Dr. Maël Guennou

Maël Guennou

Assistant professor

Faculty or Centre Faculty of Science, Technology and Medicine
Department Department of Physics and Materials Science
Postal Address Université du Luxembourg
2, Avenue de l'Université
L-4365 Esch-sur-Alzette
Telephone (+352) 46 66 44 6785
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See detailCrossover between distinct symmetries in solid solutions of rare earth nickelates
Fowlie, Jennifer; Mundet, Bernat; Toulouse, Constance; Alexander, Schober; Guennou, Mael; Dominguez, Claribel; Gibert, Marta; Alexander, Duncan T. L.; Kreisel, Jens; Triscone, Jean-Marc

in APL MATERIALS (2021), 9(8),

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See detailThe other model antiferroelectric: PbHfO3 thin films from ALD precursors
Hanrahan, Brendan; Milesi-Brault, Cosme; Leff, Asher; Alexis, Payne; Liu, Shi; Guennou, Mael; Strnad, Nicholas

in APL MATERIALS (2021), 9(2),

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See detailCritical field anisotropy in the antiferroelectric switching of PbZrO3 films
Milesi-Brault, Cosme; Godard, Nicolas; Girod, Stephanie; Fleming, Yves; El Adib, Brahime; Valle, Nathalie; Sebastjan, Glinsek; Defay, Emmanuel; Guennou, Mael

in APPLIED PHYSICS LETTERS (2021), 118(4),

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See detailElucidating the growth mechanism of ZnO films by atomic layer deposition with oxygen gas via isotopic tracking
Nguyen, Tai; Valle, Nathalie; Guillot, Jerome; Bour, Jerome; Adjeroud, Noureddine; Fleming, Yves; Guennou, Mael; Jean-Nicolas, Audinot; El Adib, Brahime; Joly, Raoul; Arl, Didier; Frache, Gilles; Polesel-Maris, Jerome

in JOURNAL OF MATERIALS CHEMISTRY C (2021), 9(12), 4307-4315

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See detailPatterning enhanced tetragonality in BiFeO3 thin films with effective negative pressure by helium implantation
Toulouse, Constance; Fischer, Johanna; Farokhipoor, Saeedeh; Yedra, Lluis; Carlà, Francesco; Jarnac, Amélie; Elkaim, Erik; Fertey, Pierre; Audinot, Jean-Nicolas; Wirtz, Tom; Noheda, Beatriz; Garcia, Vincent; Fusil, Stéphane; Peral Alonso, Inmaculada; Guennou, Mael; Kreisel, Jens

in Physical Review Materials (2021), 5(2), 024404

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See detailRole of the ferroelastic strain in the optical absorption of BiVO4
Hill, Christina; Weber, Mads C.; Lehmann, Jannis; Leinen, Tariq; Fiebig, Manfred; Kreisel, Jens; Guennou, Mael

in APL MATERIALS (2020), 8(8),

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See detailMesoporous TiO2 anatase films for enhanced photocatalytic activity under UV and visible light
Ishchenko, Olga M.; Lamblin, Guillaume; Guillot, Jérôme; Infante, Ingrid C.; Guennou, Mael; Adjeroud, Noureddine; Fechete, Ioana; Garin, Francois; Turek, Philippe; Lenoble, Damien

in RSC Adv. (2020), 10

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See detailArchetypal Soft-Mode-Driven Antipolar Transition in Francisite Cu3Bi(SeO3)(2)O2Cl
Milesi-Brault, Cosme; Toulouse, Constance; Constable, Evan; Aramberri, Hugo; Simonet, Virginie; de Brion, Sophie; Berger, Helmuth; Paolasini, Luigi; Bosak, Alexei; Iñiguez, Jorge; Guennou, Mael

in PHYSICAL REVIEW LETTERS (2020), 124(9), 097603-6

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See detailArchetypal Soft-Mode-Driven Antipolar Transition in Francisite Cu3BiðSeO3Þ2O2Cl
Milesi-Brault, Cosme; Toulouse, Constance; Constable, Evan; Aramberri, Hugo; Simonet, Virginie; De Brion, Sophie; Berger, Helmuth; Paolasini, Luigi; Bosak, Alexei; Iñiguez, Jorge; Guennou, Mael

in Physical Review Letters (2020)

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See detailOptical studies of ferroelectric and ferroelastic domain walls
Nataf, G. F.; Guennou, Mael

in Journal of Physics: Condensed Matter (2020), 32(18), 183001

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See detailDomain-wall engineering and topological defects in ferroelectric and ferroelastic materials
Nataf, G. F.; Guennou, Mael; Gregg, J. M.; Meier, D.; Hlinka, J.; Salje, E. K. H.; Kreisel, Jens

in Nature Reviews. Physics (2020), 2(11), 634-648

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See detailHigh-contrast imaging of 180 degrees ferroelectric domains by optical microscopy using ferroelectric liquid crystals
Nataf, Guillaume F.; Guennou, Mael; Scalia, Giusy; Moya, Xavier; Wilkinson, Tim D.; Lagerwall, Jan

in APPLIED PHYSICS LETTERS (2020), 116(21),

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See detailControlling electrical and optical properties of zinc oxide thin films grown by thermal atomic layer deposition with oxygen gas
Nguyen, Tai; Adjeroud, Noureddine; Guennou, Mael; Guillot, Jérôme; Fleming, Yves; Papon, Anne-Marie; Arl, Didier; Menguelti, Kevin; Joly, Raoul; Gambacorti, Narciso; Polesel-Maris, Jérôme

in Results in Materials (2020), 6

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See detailVibrational properties of LaNiO3 films in the ultrathin regime
Schober, Alexander; Fowlie, Jennifer; Guennou, Mael; Weber, Mads C.; Zhao, Hongjian; Iñiguez, Jorge; Gibert, Marta; Triscone, Jean-Marc; Kreisel, Jens

in APL MATERIALS (2020), 8(6),

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See detailThin-film (Sb,Bi)2Se3 Semiconducting Layers with Tunable Band Gaps Below 1 eV for Photovoltaic Applications
Weiss, Thomas; Arnou, Panagiota; Melchiorre, Michele; Guennou, Mael; Siopa, Daniel; Pauly, Christian; Peral Alonso, Inmaculada; Dale, Phillip; Siebentritt, Susanne

in Physical Review Applied (2020), 14

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See detailLattice dynamics and Raman spectrum of BaZrO3 single crystals
Toulouse, Constance; Amoroso, Danila; Xin, Cong; Philippe, Veber; Hatnean, Monica Ciomaga; Balakrishnan, Geetha; Maglione, Mario; Ghosez, Philippe; Kreisel, Jens; Guennou, Mael

in Physical Review. B (2019), 100

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See detailCrossover in the pressure evolution of elementary distortions in RFeO3 perovskites and its impact on their phase transition
Vilarinho, Rui; Bouvier, Pierre; Guennou, Mael; Peral Alonso, Inmaculada; Weber, Mads; Tavares, P; Mihalik, M; Garbarino, Gaston; Mezouar, Mohammed; Kreisel, Jens; Almeida, Abilio; Moreira, Joachim Agostinho

in Physical Review. B (2019), 99

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See detailSingle crystal growth of BaZrO3 from the melt at 2700 degrees C using optical floating zone technique and growth prospects from BaB2O4 flux at 1350 degrees C
Xin, Cong; Veber, Philippe; Guennou, Mael; Toulouse, Constance; Valle, Nathalie; Hatnean, Monica Ciomaga; Balakrishnan, Geetha; Haumont, Raphael; Saint Martin, Romuald; Velazquez, Matias; Maillard, Alain; Rytz, Daniel; Josse, Michael; Maglione, Mario; Kreisel, Jens

in CRYSTENGCOMM (2019), 21(3), 502-512

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See detailRaman signatures of ferroic domain walls captured by principal component analysis
Nataf, G. F.; Barrett, N.; Kreisel, Jens; Guennou, Mael

in Journal of Physics: Condensed Matter (2018), 30(3),

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See detailSuppression of the cooperative Jahn-Teller distortion and its effect on the Raman octahedra-rotation modes of TbMn1-xFexO3
Vilarinho, R.; Passos, D. J.; Queiros, E. C.; Tavares, P. B.; Almeida, A.; Weber, M. C.; Guennou, Mael; Kreisel, Jens; Agostinho Moreira, J.

in Physical Review. B (2018), 97(14),

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See detailConductivity and Local Structure of LaNiO3 Thin Films
Fowlie, Jennifer; Gibert, Marta; Tieri, Giulio; Alexandre, Gloter; Iniguez, Jorge; Filippetti, Alessio; Catalano, Sara; Gariglio, Stefano; Schober, Alexander; Guennou, Mael; Kreisel, Jens; Stephan, Odile; Triscone, Jean-Marc

in Advanced Materials (2017), 29(18),

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See detailControl of surface potential at polar domain walls in a nonpolar oxide
Nataf, G. F.; Guennou, Mael; Kreisel, Jens; Hicher, P.; R., Haumont; Aktas, O.; Salje, E. K. H.; Tortech, L.; Mathieu, C.; Martinotti, D.; Barrett, N.

in Physical Review Materials (2017), 1(7),

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See detailRules and mechanisms governing octahedral tilts in perovskites under pressure
Xiang, H. J.; Guennou, Mael; Iniguez, Jorge; Kreisel, Jens; Bellaiche, L.

in Physical Review. B (2017), 96(5),

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See detailUnderstanding quaternary compound Cu2ZnSnSe4 synthesis by microscopic scale analyses at an identical location
Crossay, Alexandre; Colombara, Diego; Melchiorre, Michele; Guennou, Mael; Mendis, B. G.; Dale, Phillip

in Journal of Materials Chemistry C (2016), 4

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See detailUltrafast acousto-optic mode conversion in optically birefringent ferroelectrics
Lejman, Mariusz; Vaudel, Gwenaelle; Infante, Ingrid C.; Ievgeniia, Chaban; Pezeril, Thomas; Edely, Mathieu; Nataf, Guillaume F.; Guennou, Mael; Kreisel, Jens; Gusev, Vitalyi E.; Brahim, Dkhil; Ruello, Pascal

in Nature Communications (2016), 7

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See detailLow energy electron imaging of domains and domain walls in magnesium-doped lithium niobate
Nataf, G. F.; Grysan, P.; Guennou, Mael; Kreisel, Jens; Martinotti, D.; Rountree, C. L.; Mathieu, C.; Barrett, N.


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See detailEvolution of defect signatures at ferroelectric domain walls in Mg-doped LiNbO3
Nataf, Guillaume F.; Guennou, Mael; Haussmann, Alexander; Barrett, Nick; Kreisel, Jens

in Physica Status Solidi. Rapid Research Letters (2016), 10(3), 222-226

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See detailMultiple strain-induced phase transitions in LaNiO3 thin films
Weber, M. C.; Guennou, Mael; Dix, N.; Pesquera, D.; F., Sanchez; Herranz, G.; Fontcuberta, J.; Lopez-Conesa, L.; S., Estrade; Peiro, F.; Iniguez, Jorge; Kreisel, Jens

in Physical Review. B (2016), 94(1),

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See detailRaman spectroscopy of rare-earth orthoferrites RFeO3 (R=La, Sm, Eu, Gd Tb, Dy)
Weber, Mads Christof; Guennou, Mael; Zhao, Hong Jian; Jorge, Iniguez; Vilarinho, Rui; Almeida, Abilio; Moreira, Joaquim Agostinho; Kreisel, Jens

in Physical Review. B (2016), 94(21),

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