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A phase field model for snow crystal growth in three dimensions

Autor: Gilles Demange, Helena Zapolsky, Renaud Patte, Marc Brunel

Publikováno v: npj Computational Materials, Vol 3, Iss 1, Pp 1-7 (2017)

Spontaneous patterns: Simulating snowflakes with a softer touch A model that reproduces complex 3D snowflake growth using versatile interface descriptors may benefit other dendritic materials. Snow crystals solidify by expanding outward from an initi

Externí odkaz: https://doaj.org/article/5c12c0ec678d4323a33bcd0ca5e4dba2

Induced side-branching in smooth and faceted dendrites: theory and phase-field simulations

Autor: Gilles Demange, Renaud Patte, Helena Zapolsky

Publikováno v: Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, Royal Society, The, 2022, 380 (2217), ⟨10.1098/rsta.2020.0304⟩
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2022, 380 (2217), ⟨10.1098/rsta.2020.0304⟩

The present work is devoted to the phenomenon of induced side branching stemming from the disruption of free dendrite growth. We postulate that the secondary branching instability can be triggered by the departure of the morphology of the dendrite fr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ab93a1d684f763dc93abc16c9206d5e7
https://hal.archives-ouvertes.fr/hal-03517346

Magnetic field induced phases in CuCrO2 : Monte Carlo and analytical investigations

Autor: Ahmed Albaalbaky, Warren Logi Ndzamba, D. Ledue, Renaud Patte

Publikováno v: Physical Review B. 103

Motivated by the strong magnetoelectric coupling in the multiferroic geometrically frustrated triangular antiferromagnet $\mathrm{Cu}\mathrm{Cr}{\mathrm{O}}_{2}$ and the high sensitivity of its magnetic structure to external fields, we investigate in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3d4b7ad1a7d4b5e8514c6782d0e9156b
https://doi.org/10.1103/physrevb.103.094401

Influence of grain boundaries, interface roughness and non-collinear magnetic configurations in the AF layer on the exchange bias properties of F/AF nanodots: A numerical investigation

Autor: Haydar Kanso, D. Ledue, Renaud Patte, Helena Zapolsky

Publikováno v: Journal of Magnetism and Magnetic Materials
Journal of Magnetism and Magnetic Materials, Elsevier, 2020, 513, pp.167250-. ⟨10.1016/j.jmmm.2020.167250⟩
Journal of Magnetism and Magnetic Materials, 2020, 513, pp.167250-. ⟨10.1016/j.jmmm.2020.167250⟩

Motivated by the insufficient understanding of the drastic effects of the disordered interfacial phases at the interface in F/AF bilayers on the exchange bias properties, we consider a realistic model for F/AF nanodots which accounts for roughness at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8ee7d1a69047f4a945f3877f8f538c6d
https://hal.archives-ouvertes.fr/hal-03491274