Manaswini Sahoo^1,2,3*, Pietro Bonfà^1*, Amelia Elisabeth Hall⁴, Daniel A. Mayoh⁴, Laura Teresa Corredor², Anja U. B. Wolter², Bernd Büchner², Geetha Balakrishnan⁴, Roberto De Renzi¹, Giuseppe Allodi¹

1 Dipartimento di Scienze Matematiche, Fisiche e Informatiche, Università di Parma, Parco Area delle Scienze 7/A, I-43124 Parma, Italy

2 Leibniz IFW Dresden, Helmholtzstrasse 20, D-01069 Dresden, Germany

3 Institut für Festkörper- und Materialphysik, Technische Universität Dresden, 01062 Dresden, Germany

4 Department of Physics, University of Warwick, Coventry, CV4 7AL, United Kingdom

* Corresponding authors emails: manaswinisahoo333@gmail.com, pietro.bonfa@unipr.it

DOI10.24435/materialscloud:qa-5v [version v2]

Publication date: Jan 28, 2025

How to cite this record

Manaswini Sahoo, Pietro Bonfà, Amelia Elisabeth Hall, Daniel A. Mayoh, Laura Teresa Corredor, Anja U. B. Wolter, Bernd Büchner, Geetha Balakrishnan, Roberto De Renzi, Giuseppe Allodi, Disorder-resilient transition of Helical to Conical ground states in M_1/3NbS₂, M=Cr,Mn, Materials Cloud Archive 2025.20 (2025), https://doi.org/10.24435/materialscloud:qa-5v

Description

The discovery of chiral helical magnetism (CHM) in Cr_1/3NbS₂ and the stabilization of a chiral soliton lattice (CSL) has attracted considerable interest in view of their potential technological applications. However, there is an ongoing debate regarding whether the sister compound, Mn_1/3NbS₂, which shares the same crystal structure, exhibits similar nontrivial properties, which rely on the stabilization of the lack of inversion symmetry at the magnetic ion. In this study, we conduct a comprehensive investigation of the magnetically ordered states of both compounds, using ⁵³Cr, ⁵⁵Mn and ⁹³Nb nuclear magnetic resonance. Our results, supported by density functional calculations, detect in a high quality single crystal of Cr_1/3NbS₂ all the signatures of the monoaxial CHM in a magnetic field, identifying it as a textbook NMR case. The detailed understanding of this prototypic behavior provides a reference for Mn_1/3NbS₂. Despite the much larger density of specific defects in this second single crystal, we confirm the presence of a CHM phase in the Mn compound, characterized by a very large critical field for the forced ferromagnetic phase (~ 10 T for H || c).

Materials Cloud sections using this data

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File name	Size	Description
MNb3S6_data_v2.tgz MD5md5:5cfe9845a33ec9aaf5c4cd6461d04baa	34.2 MiB	Experimental data and input/output files for the simulations appearing in the manuscript.

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Keywords

Chiral Helical Magnetism Nuclear Magnetic Resonance DFT Chiral Soliton Lattice