Výsledky vyhledávání - "Grégory Chaboussant"

Field-induced vortex-like textures as a probe of the critical line in reentrant spin glasses

Autor: M. Deutsch, I. Mirebeau, Catherine Pappas, Grégory Chaboussant, N. Martin, L. J. Bannenberg, Robert Cubitt

Publikováno v: Scientific Reports
'Scientific Reports ', vol: 11, pages: 20753-1-20753-9 (2021)
Scientific Reports, Nature Publishing Group, 2021, 11 (1), pp.20753. ⟨10.1038/s41598-021-99860-2⟩
Scientific Reports, 11(1)
Scientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
Scientific Reports, 2021, 11 (1), pp.20753. ⟨10.1038/s41598-021-99860-2⟩

We study the evolution of the low-temperature field-induced magnetic defects observed under an applied magnetic field in a series of frustrated amorphous ferromagnets (Fe$_{1-x}$Mn$_{x}$)$_{75}$P$_{16}$B$_{3}$Al$_{3}$ (a-FeMn). Combining small-angle

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f40f34d1169684f88a2800bf9a3b2128
http://europepmc.org/articles/PMC8531314

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Anisotropic fractal magnetic domain pattern in bulk Mn1.4PtSn

Autor: Peter Milde, V. Kumar, Claudia Felser, A. S. Sukhanov, A. S. Cameron, Grégory Chaboussant, Dmytro S. Inosov, A. Heinemann, Praveen Vir, Lukas M. Eng, B. E. Zuniga Cespedes, N. Martin

Publikováno v: Physical Review B
Physical Review B, American Physical Society, 2020, 102, ⟨10.1103/PhysRevB.102.174447⟩
Physical Review B, 2020, 102 (17), ⟨10.1103/PhysRevB.102.174447⟩
Physical Review B, American Physical Society, 2020, 102 (17), ⟨10.1103/PhysRevB.102.174447⟩
Sukhanov, A.S.; Cespedes, B.E.Z.; Vir, P.; Cameron, A.S.; Heinemann, A.; Martin, N.; Chaboussant, G.; Kumar, V.; Milde, P.; Eng, L.M.; Felser, C.; Inosov, D.S.: Anisotropic fractal magnetic domain pattern in bulk Mn1.4PtSn. In: Physical Review B. Vol. 102 (2020) 17, 174447. (DOI: /10.1103/PhysRevB.102.174447)
Physical Review B, 2020, 102, ⟨10.1103/PhysRevB.102.174447⟩

The tetragonal compound Mn$_{1.4}$PtSn with the $D_{2d}$ symmetry recently attracted attention as the first known material that hosts magnetic antiskyrmions, which differ from the so far known skyrmions by their internal structure. The latter have be

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81f20918dbcb40d2c8865feef5ba7094
https://hal.archives-ouvertes.fr/hal-03043828

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Antiferromagnetic fluctuations and charge carrier localization in ferromagnetic bilayer manganites: electrical resistivity scales exponentially with short-range order controlled by temperature and magnetic field

Autor: D. T. Adroja, Tsuyoshi Kimura, Gabriel Aeppli, Toby Perring, J D M Champion, Pascal Manuel, Grégory Chaboussant, Yoshinori Tokura

Publikováno v: Journal of Physics: Condensed Matter
Journal of Physics: Condensed Matter, IOP Publishing, 2020, 32 (37), pp.374013. ⟨10.1088/1361-648x/ab88f1⟩
Journal of Physics: Condensed Matter, 2020, 32 (37), pp.374013. ⟨10.1088/1361-648x/ab88f1⟩

International audience; The compound La2−2xSr1+2xMn2O7, x = 0.30–0.40, consists of bilayers of ferromagnetic metallic MnO2 sheets that are separated by insulating layers. The materials show colossal magnetoresistance—a reduction in resistivity

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4b50c9ce5c9850e537067028e9d68059
https://pubmed.ncbi.nlm.nih.gov/32289761

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Phase Stability of Spin-Crossover Nanoparticles Investigated by Synchrotron Mössbauer Spectroscopy and Small-Angle Neutron Scattering

Autor: Elias Angulo-Cervera, Grégory Chaboussant, Léa Godard, Gautier Félix, Dimitrios Bessas, Lionel Salmon, Valerio Cerantola, Azzedine Bousseksou, Mario Piedrahita-Bello, William Nicolazzi, Mirko Mikolasek, Gábor Molnár, Karl Ridier

Publikováno v: Journal of Physical Chemistry Letters
Journal of Physical Chemistry Letters, American Chemical Society, 2019, 10 (7), pp.1511-1515. ⟨10.1021/acs.jpclett.9b00335⟩
Journal of Physical Chemistry Letters, 2019, 10 (7), pp.1511-1515. ⟨10.1021/acs.jpclett.9b00335⟩

Spin-crossover nanomaterials have been actively studied in the past decade for their potential technological applications in sensing, actuating, and information processing devices. Unfortunately, an increasing number of the metallic centers become in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1d1dc226f724dd7957cd5cd3df56382c
https://hal.archives-ouvertes.fr/hal-02111198

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New magnetic phase of the chiral skyrmion material Cu

Autor: Fengjiao, Qian, Lars J, Bannenberg, Heribert, Wilhelm, Grégory, Chaboussant, Lisa M, Debeer-Schmitt, Marcus P, Schmidt, Aisha, Aqeel, Thomas T M, Palstra, Ekkes, Brück, Anton J E, Lefering, Catherine, Pappas, Maxim, Mostovoy, Andrey O, Leonov

Publikováno v: Science advances. 4(9)

The lack of inversion symmetry in the crystal lattice of magnetic materials gives rise to complex noncollinear spin orders through interactions of a relativistic nature, resulting in interesting physical phenomena, such as emergent electromagnetism.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::42ae05b9e636fa6b8d94c70759eb90fc
https://pubmed.ncbi.nlm.nih.gov/30255145

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New magnetic phase of the chiral skyrmion material Cu2OSeO3

Autor: Andrey O. Leonov, Heribert Wilhelm, Grégory Chaboussant, F. Qian, Thomas Palstra, Aisha Aqeel, Catherine Pappas, Lisa DeBeer-Schmitt, Marcus Schmidt, Ekkes Brück, A. J. E. Lefering, L. J. Bannenberg, Maxim Mostovoy

Publikováno v: Science Advances
Science Advances, American Association for the Advancement of Science (AAAS), 2018, 4 (9), pp.eaat7323. ⟨10.1126/sciadv.aat7323⟩
Science Advances, 4(9):7323. AMER ASSOC ADVANCEMENT SCIENCE
Science Advances, 4(9)
Science Advances, 2018, 4 (9), pp.eaat7323. ⟨10.1126/sciadv.aat7323⟩

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0042be35de83601026ee0b94c5cefdf
https://hal.archives-ouvertes.fr/hal-02111201

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Spin textures induced by quenched disorder in a reentrant spin glass: Vortices versus 'frustrated' skyrmions

Autor: N. Martin, I. Mirebeau, M. Deutsch, L. J. Bannenberg, Grégory Chaboussant, Robert Cubitt, Catherine Pappas, Andrey O. Leonov, C. Decorse

Publikováno v: Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2018, 98 (1), pp.014420. ⟨10.1103/PhysRevB.98.014420⟩
Physical Review B (Condensed Matter and Materials Physics), 98(014420)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2018, 98 (1), pp.014420. ⟨10.1103/PhysRevB.98.014420⟩

Reentrant spin glasses are frustrated disordered ferromagnets developing vortex-like textures under an applied magnetic field. Our study of a Ni$_{0.81}$Mn$_{0.19}$ single crystal by small angle neutron scattering clarifies their internal structure a

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https://hal.science/hal-01847048/file/Mirebeau_2018_PhysRevB.98.014420.pdf

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Reorientations, relaxations, metastabilities, and multidomains of skyrmion lattices

Autor: Catherine Pappas, N. Martin, Heribert Wilhelm, Robert M. Dalgliesh, L. J. Bannenberg, Deborah L. Schlagel, Grégory Chaboussant, T.A. Lograsso, F. Qian, Marcus Schmidt

Publikováno v: Physical Review B (Condensed Matter and Materials Physics), 96(184416)
Physical Review B: Condensed Matter and Materials Physics (1998-2015)
Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2017, 96 (18), ⟨10.1103/PhysRevB.96.184416⟩
Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2017, 96 (18), ⟨10.1103/PhysRevB.96.184416⟩

Magnetic skyrmions are nano-sized topologically protected spin textures with particle-like properties. They can form lattices perpendicular to the magnetic field and the orientation of these skyrmion lattices with respect to the crystallographic latt

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http://resolver.tudelft.nl/uuid:bf288a02-4ee5-46ef-a4af-15f49b553cff

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Long-period helical structures and twist-grain boundary phases induced by chemical substitution in the Mn1−x(Co,Rh)xGe chiral magnet

Autor: A. V. Tsvyashchenko, Françoise Damay, Pierre Bonville, L.N. Fomicheva, N. Martin, Grégory Chaboussant, M. Deutsch, I. Mirebeau, U. K. Rössler

Publikováno v: Physical Review B. 96

We study the evolution of helical magnetism in MnGe chiral magnet upon partial substitution of Mn for $3d$-Co and $4d$-Rh ions. At high doping levels, we observe spin helices with very long periods---more than ten times larger than in the pure compou

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b64a6d65ec84ccdbd2a32751ca862923
https://doi.org/10.1103/physrevb.96.020413

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Individual-collective crossover driven by particle size in dense assemblies of superparamagnetic nanoparticles

Autor: Laure Catala, Eric Rivière, Grégory Chaboussant, Karl Ridier, Sandra Mazerat, Béatrice Gillon, Talal Mallah

Publikováno v: The European Physical Journal B: Condensed Matter and Complex Systems
The European Physical Journal B: Condensed Matter and Complex Systems, Springer-Verlag, 2017, 90 (4), ⟨10.1140/epjb/e2017-70534-9⟩
The European Physical Journal B: Condensed Matter and Complex Systems, 2017, 90 (4), ⟨10.1140/epjb/e2017-70534-9⟩

Prussian blue analogues (PBA) ferromagnetic nanoparticles Cs I x Ni II [Cr III (CN)6 ] z ·3(H2O) embedded in CTA+ (cetyltrimethylammonium) matrix have been investigated by magnetometry and magnetic small-angle neutron scattering (SANS). Choosing par

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d1794c8112869a193451f2abc6538025
https://hal.archives-ouvertes.fr/hal-02112368

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