TY - JOUR
T1 - Hydrogen Evolution Driven by Photoexcited Entangled Skyrmion on Perovskite Ca2Nan-3NbnO3 n+1Nanosheet
AU - Aziza, Miladina R.
AU - Chang, Chia Wei
AU - Kaun, Chao Cheng
AU - Su, Yen Hsun
N1 - Funding Information:
This work was supported by National Cheng Kung University and Ministry of Science and Technology of Taiwan Project Nos. 109-2221-E-006-024-MY3, 109-2224-E-006-009, and 109-2224-E-006-007, HAADF-STEM Field-Scanning TEM JEOL ARM200F in National Chiao-Tung University, and National Center for High-Performance Computing for computing time and facilities.
Publisher Copyright:
© Authors 2021
PY - 2021/7/8
Y1 - 2021/7/8
N2 - A magnetic skyrmion is a topologically stable state with potential applications for realizing the next-generation spintronic devices. Here, we demonstrate the real-space observation of skyrmions in Dion-Jacobson phase perovskite, Ca2Nan-3NbnO3n+1- (CNNO), nanosheets by using optical injection. The CNNO4 and CNNO6 nanosheets exhibit weak ferromagnetics, while the CNNO5 nanosheet is superparamagnetic. The magnetic skyrmion can be clearly observed in those 2D nanosheets in the absence of the external magnetic field. First-principles calculations and micromagnetic simulations predict that the magnetic skyrmions in CNNO nanosheets is Néel-type with a diameter of 11-15 nm, in corresponding to the experiments. Our findings provide insights for developing room-temperature skyrmions in CNNO nanosheets for skyrmionic water-splitting performance in future energy generation and quantum computing devices.
AB - A magnetic skyrmion is a topologically stable state with potential applications for realizing the next-generation spintronic devices. Here, we demonstrate the real-space observation of skyrmions in Dion-Jacobson phase perovskite, Ca2Nan-3NbnO3n+1- (CNNO), nanosheets by using optical injection. The CNNO4 and CNNO6 nanosheets exhibit weak ferromagnetics, while the CNNO5 nanosheet is superparamagnetic. The magnetic skyrmion can be clearly observed in those 2D nanosheets in the absence of the external magnetic field. First-principles calculations and micromagnetic simulations predict that the magnetic skyrmions in CNNO nanosheets is Néel-type with a diameter of 11-15 nm, in corresponding to the experiments. Our findings provide insights for developing room-temperature skyrmions in CNNO nanosheets for skyrmionic water-splitting performance in future energy generation and quantum computing devices.
UR - http://www.scopus.com/inward/record.url?scp=85110969349&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85110969349&partnerID=8YFLogxK
U2 - 10.1021/acs.jpclett.1c01490
DO - 10.1021/acs.jpclett.1c01490
M3 - Article
C2 - 34196561
AN - SCOPUS:85110969349
SN - 1948-7185
VL - 12
SP - 6244
EP - 6251
JO - Journal of Physical Chemistry Letters
JF - Journal of Physical Chemistry Letters
IS - 26
ER -