TY  - JOUR
AU  - Song, Dongsheng
AU  - Wang, Lin
AU  - Wang, Weiwei
AU  - Zheng, Fengshan
AU  - Tang, Jin
AU  - Wang, Shasha
AU  - Zhu, Chao
AU  - Caron, Jan
AU  - Kovács, András
AU  - Liu, Zheng
AU  - Mandrus, David
AU  - Tian, Mingliang
AU  - Du, Haifeng
AU  - Dunin-Borkowski, Rafal E.
TI  - Robust nature of the chiral spin helix in Cr Nb 3 S 6 nanostructures studied by off-axis electron holography
JO  - Physical review / B
VL  - 102
IS  - 6
SN  - 2469-9950
CY  - Woodbury, NY
PB  - Inst.
M1  - FZJ-2020-04273
SP  - 064432
PY  - 2020
AB  - Magnetic soliton crystals with layered structures that host periodic chiral helimagnetic ordering are promising candidates for spintronic nanodevices. Among them, helimagnetic CrNb3S6 is unique owing to its crystallographic chirality and monoaxial Dzyaloshinskii-Moriya interaction. It is crucial to explore its magnetic configurations and properties with respect to the temperature and thickness, especially in reduced dimensions. Here, the chiral helimagnetic ground state in CrNb3S6 nanostructures is investigated using off-axis electron holography in the transmission electron microscope. The period of the helical state is found to be independent of both temperature and specimen thickness, while the temperature dependence of the saturation magnetization is shown to follow a classical Heisenberg spin model. Monte Carlo simulations based on a discrete classical Heisenberg model reproduce the experimental observations closely, confirming the applicability of a three-dimensional Heisenberg model even in a confined specimen geometry.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000564041600002
DO  - DOI:10.1103/PhysRevB.102.064432
UR  - https://juser.fz-juelich.de/record/886110
ER  -