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Berlin 2024 – wissenschaftliches Programm

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MA: Fachverband Magnetismus

MA 53: Skyrmions IV

MA 53.3: Vortrag

Freitag, 22. März 2024, 10:00–10:15, EB 301

Helical to conical order in M1/3 NbS2 (M=Cr, Mn), detected by Cr, Mn NMR — •Manaswini Sahoo1,2, Pietro Bonafa2, Amelia Hall3, Daniel Mayoh3, Laura Corredor1, Bernd Buechner1, Geetha Balakrishnan3, Roberto De Renzi2, and Giuseppe Allodi21Leibniz IFW Dresden,Germany — 2University of Parma,Italy — 3Department of Physics, University of Warwick, United Kingdom

Recently, the materials Cr1/3NbS2 have piqued the interest of researchers as rare examples of 2D materials with helical magnetic ordering, thought to occur due to competition between exchange and DMI. When a magnetic field is applied perpendicular to the c-axis, the helical ground state transforms into the chiral soliton lattice (CSL). A chiral conical phase (CCP) emerges when the magnetic field is applied along the c-axis. Both phases are well established in Cr3/NbS2. However, the other member of the family, Mn1/3NbS2 has a similar crystal structure but complex magnetic behavior. Cr single-crystal NMR measurements demonstrate the first-order nature of the helical-to-paramagnetic phase transition and determine the exact boundaries of the conical phase. Similarities with Mn single crystal NMR results are discussed.

Keywords: Chiral soliton Lattice; Nuclear magnetic resonance; Quantum magnetism; Skyrmions; Transition metal dichalcogenides

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