Giant anisotropic magnetoresistance in magnetic monolayers CrPX3 (X=S, Se, Te<… DOI
Wanshan Hou, M. Q. Dong,

X. Zhang

et al.

Physical review. B./Physical review. B, Journal Year: 2024, Volume and Issue: 110(21)

Published: Dec. 2, 2024

Asymmetric Bond Delta‐Polarization at the Interfacial Se─Ru─O Bridge for Efficient pH‐Robust Water Electrolysis DOI
Ya Chen, Yaoda Liu, Lei Li

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: June 10, 2024

Abstract The rationalization of pH‐robust catalysis is highly desired but challengeable for overall water electrolysis (WE). It requests a metal active site that can make an efficient adaption with both cathodic hydrogen and anodic oxygen evolution reactions (HER/OER). Herein, RuO 2‐x /RuSe 2 heterostructure electrocatalyst profiled interfacial Se─Ru─O bridge the splitting studies. An asymmetric bond delta‐polarization (Δp) found at bridge, including Δp > 0 Ru─O part < Ru─Se side by experiment calculation results. enlarged polarizability (Δp 0) in principle trigger lattice mediated (LOM) pathway OER; meanwhile, reduced benefit HER due to strengthened d‐p band hybridization. Resultantly, deliver ultralow overpotentials 25/10 mV Pt‐beyond 210/255 OER 10 mA cm −2 acidic/alkaline media, respectively. In especial, acidic WE be stably operated 200 h low cell voltage 1.478 V . This research clarifies polarization as criterion rational design catalysts.

Language: Английский

Citations

40

Septuple XBi2Te4 (X=Ge, Sn, Pb) intercalated MnBi2Te4 for realizing interlayer ferromagnetism and quantum anomalous hall effect DOI Creative Commons
Ruixia Yang, Xiao-Xiao Man,

Jiahui Peng

et al.

npj Quantum Materials, Journal Year: 2025, Volume and Issue: 10(1)

Published: Jan. 7, 2025

Abstract Realizing the quantum anomalous Hall effect (QAHE) at high temperatures remains a significant challenge in condensed matter physics. MnBi 2 Te 4 , an intrinsic magnetic topological insulator, presents promising platform for QAHE. However, its inherent interlayer antiferromagnetic coupling hinders practical realization temperatures. In this study, we propose novel approach to achieve ferromagnetic (FM) MBT bilayer by intercalating septuple-layer of insulators XBi (X=Ge, Sn, Pb). Using first-principles calculations, demonstrate that p z orbital X atom mediates interactions between Mn atoms, enabling FM coupling. Monte Carlo simulations predict transition temperature 38 K /PbBi /MnBi heterostructure. Our band structure and analyses confirm preservation QAHE all /XBi heterostructures, while heterostructure exhibits gap 72 meV, significantly exceeding pure bilayer. Furthermore, continuum model is developed elucidate underlying mechanism nontrivial states. work provides pathway achieving bilayers, paving way high-temperature advancing development spintronic applications.

Language: Английский

Citations

0

Structural and electronic regulation of transition metal borides: from controllable synthesis to industrial alkaline water splitting DOI

Na Xu,

Xinru Li, Denghao Ouyang

et al.

Fuel, Journal Year: 2025, Volume and Issue: 386, P. 134283 - 134283

Published: Jan. 9, 2025

Language: Английский

Citations

0

Giant anisotropic magnetoresistance in magnetic monolayers CrPX3 (X=S, Se, Te<… DOI
Wanshan Hou, M. Q. Dong,

X. Zhang

et al.

Physical review. B./Physical review. B, Journal Year: 2024, Volume and Issue: 110(21)

Published: Dec. 2, 2024

Citations

0