News

Communications

Poster, XTOP 2024, Carry-Le-Rouet, France, Mar. 2024
Recrystallization and strain release in magnetoelectric arrays of embedded ferrite nanostructures.
Cristian Mocuta, Pâmella Vasconcelos Borges Pinho, Edoardo Zatterin, Phuong-Linh Nguyen, Dominique Thiaudière, Antoine Barbier

Poster, XXIème Colloque Louis Néel, Sète, France, Nov. 2023
Insulator-to-metal transition in NiFe2O4 ultra-thin films
Kedar Sharma, Lionel Calmels and Rémi Arras

Oral - DSL-2023, Heraklion, Greece, June 2023
Self-oxidized single crystalline perovskite N:BaTiO3 oxynitride epitaxial thin films.
A. Barbier, A Derj, C. Blaess, H. Lin, G. Creutzer, H. Magnan, S. Matzen, J.-B. Moussy, C. Mocuta, F. Charra, M. Silly, P. Le Fèvre, J. Leroy. 

Keynote Oral - MEETMAGNETISM 2023, Rome, Italy, Mar. 2023
Artificial Multiferroics: Platelets of Ferrites Embedded in Barium Titanate.
A. Barbier, P.-L. Nguyen, F. Petronio, M. Rioult, T. Aghavnian, J.-B. Moussy, D. Stanescu, H. Magnan, C. Mocuta, A. Vlad, A. Resta, P. Ohresser, B. Sarpi, F.Maccherozzi, C. Rountree, N. Jedrecy, R. Belkhou

Poster, GDR MEETICC topical meeting "From quantum matter to functional materials", Paris, France, Jan. 2023
Understanding the insulating-to-metal switching in spinel Ferrites
K. Sharma, L. Calmels and R. Arras

TouCAM workshop, Nov. 2022, Toulouse, France
Influence of point defects on the electronic and magnetic properties of spinel ferrites
K. Sharma, D. Li, L. Calmels and R. Arras

Poster, LEEM-PEEM12, Cordoba, Spain, September 2022
Selective phase decomposition in multiferroic α-Fe2O3-X /BaTiO3(001)   and  Fe3-δO4 /BaTiO3(001) driven by tip-bias.
B. Sarpi, D. Stanescu, J.-B. Moussy, C. Rountree, R. Belkhou and A. Barbier

Poster - Psi-K 2022 conference, August 22-25th 2022, Lausanne, Switzerland
Influence of point defects on the electronic and magnetic properties of spinel ferrites
K. Sharma, D. Li, L. Calmels and R. Arras

Oral - ANM-2022, Aveiro, Portugal, July 2022
Unravelling the Correlation between Strain, Ferroelectricity, and Ferromagnetism in Epitaxial Multiferroic NiFe2O4/BaTiO3 heterostructures.
H. Lin, C. Blaess, B. Sarpi, P. Ohresser, C. Mocuta, J.-M. Tonnerre, H. Magnan, J.-B. Moussy, C. Rountree and A. Barbier

Oral - E-MRS Spring Meeting, Strasbourg, France, May 2022
N:BaTiO3 oxynitride epitaxial thin films for integratedopto-electronics
C. Blaess, S. Matzen, H. Lin, G. Creutzer, A. Derj, H. Magnan, J.-B. Moussy, C. Mocuta, F. Charra, M. Silly and A. Barbier.

Oral - Joint MMM-Intermag Conference, January 10-14th 2022, New Orleans, USA
A DFT+U study of point defects in spinel ferrites  
K. Sharma, D. Li, L. Calmels and R. Arras

Poster - SOLEIL User's Meeting 2022, St Aubin, France, January 2022
Correlation between Strain, Ferroelectricity and Oxidation State in Epitaxial Multiferroic Fe2O3/BaTiO3 Heterostructures  
H. Lin, B. Sarpi, C. Mocuta, R. Belkhou, C. L. Rountree and A. Barbier.

Oral - 2nd International Workshop on Advanced Magnetic Oxides (IWAMO), November 24-26th 2021, Aveiro, Portugal
A DFT+U study of point defects in spinel ferrites  
K. Sharma, D. Li, L. Calmels and R. Arras

Poster - International School of oxide electronics (ISOE), Cargèse, France (2021)
A DFT+U study of point defects in spinel ferrites  
K. Sharma, D. Li, L. Calmels and R. Arras

Oral - E-MRS Spring Meeting, Strasbourg, France, May 2021
Composition of PLD deposited CoFe2O4 layers on epitaxial BaTiO3/SrTiO3(001)
J. Garot, J.-B. Moussy, H. Magnan, A. Vlad, C. Mocuta, P. Ohresser, R. Belkhou, A. Barbier

Publications

Interplay between oxygen vacancies and cation ordering in the NiFe 2 O 4 spinel ferrite

R Arras, K Sharma, L Calmels

Journal of Materials Chemistry C 12 (2), 556-561

Influence of the cation distribution, atomic substitution, and atomic vacancies on the physical properties of CoFe2O4 and NiFe2O4 spinel ferrites. Kedar Sharma, Lionel Calmels, Dongzhe Li, Antoine Barbier, and Rémi Arras.
Phys. Rev. Materials 6 (2022) 124402 

Reports / PhD

Kedar Sharma, “Ab initio calculations of the conductivity mechanisms at spinel ferrite – ferroelectric perovskite interfaces ” , 12th december 2023. Université Paul Sabatier Toulouse III 

Patents

Under embargo.