Nanoscale Manipulation of Wrinkle-Pinned Vortices in Iron-Based Superconductors
- Chinese Academy of Sciences (CAS), Beijing (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Hefei National Laboratory, Anhui (China)
- Chinese Academy of Sciences (CAS), Beijing (China); Hefei National Laboratory, Anhui (China)
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
The controlled manipulation of Abrikosov vortices is essential for both fundamental science and logical applications. However, achieving nanoscale manipulation of vortices while simultaneously measuring the local density of states within them remain challenging. Here, we demonstrate the manipulation of Abrikosov vortices by moving the pinning center, namely one-dimensional wrinkles, on the terminal layers of Fe(Te,Se) and LiFeAs, by utilizing low-temperature scanning tunneling microscopy/spectroscopy (STM/S). The wrinkles trap the Abrikosov vortices induced by the external magnetic field. In some of the wrinkle-pinned vortices, robust zero-bias conductance peaks are observed. We tailor the wrinkle into short pieces and manipulate the wrinkles by using an STM tip. Strikingly, we demonstrate that the pinned vortices move together with these wrinkles even at high magnetic field up to 6 T. Our results provide a universal and effective routine for manipulating wrinkle-pinned vortices and simultaneously measuring the local density of states on the iron-based superconductor surfaces.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC0012704; FG02-99ER45747; 61888102; 52022105; 2018YFA0305800; 2019YFA0308500; XDB28000000; XDB30000000; YSBR-003; ZDBS-SSW-WHC001; 2021ZD0302700
- OSTI ID:
- 1985792
- Report Number(s):
- BNL-224524-2023-JAAM; TRN: US2402697
- Journal Information:
- Nano Letters, Vol. 23, Issue 10; ISSN 1530-6984
- Publisher:
- American Chemical SocietyCopyright Statement
- Country of Publication:
- United States
- Language:
- English
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