Journal
NANO LETTERS
Volume 17, Issue 5, Pages 2921-2927Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.7b00135
Keywords
Skyrmion; Lorentz TEM; stability; FeGe
Categories
Funding
- Ministry of Science and Technology of China (973 Program) [2013CB932901]
- National Natural Science Foundation of China [11274066, 11474290, 51172047, 51102050, 11374302, U1432251, U1330118]
- Youth Innovation Promotion Association CAS [2015267]
- program of Users with Excellence - Hefei Science Center of CAS
- CAS/SAFEA international partnership program for creative research teams of China
- Shanghai Pujiang Program
- Shu Guang project of Shanghai Municipal Education Commission
- Shanghai Education Development Foundation [09SG01]
Ask authors/readers for more resources
The magnetic skyrmion is a topologically stable vortex-like spin texture that offers great promise as information carriers for figure spintronic devices. In a two-dimensional chiral magnet, it was generally considered that a tilted magnetic field is harmful to its formation and stability. Here we. investigated the angular-dependent stability of magnetic skyrmions in FeGe nanosheets by using high-resolution Lorentz transmission electron microscopy (Lorentz TEM). Besides the-theoretically predicted destruction of skyrmion lattice state by an oblique magnetic field as the temperature closes to its magnetic Curie temperature T-c similar to 278 K, we also observed an unexpected reentry-like phenomenon at. he moderate temperatures near the border between conical and skyrmion phase, T-t similar to 240 K. This behavior is completely beyond the theoretical prediction in a conventional two-dimensional (2D) system. Instead, a three-dimensional (3D) model involving the competition between conical phase and skyrmions is likely to play a crucial role.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available