Results 131 to 140 of about 40,538 (255)

Energy-loss structure in core-level photoemission satellites of SrTiO3, SrTiO3 : La, and SrTiO3 : Nb

Energy-loss structure in core-level photoemission satellites of SrTiO3, SrTiO3 : La, and SrTiO3 : Nb
The core-level x-ray photoemission spectroscopy (XPS) satellites of single-crystalline SrTiO3, SrTiO3:La, and SrTiO3:Nb in situ fractured in ultrahigh vacuum were compared with the electron-energy-toss spectrum and theoretical electron-energy-loss :functions from first-principles electronic structure calculations. Experimental core-level XPS satellites
openaire  

Ultrasound–Calcination Synergistic Control of (Ce, La)PO4 Catalyst Structure for Enhanced Low‐Temperature NH3‐SCR Performance

Asia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT In this study, (Ce, La)PO4 catalysts were synthesized via an ultrasound‐assisted method. The effects of ultrasound duration and calcination temperature on the low‐temperature NH3‐SCR performance were systematically investigated. The results indicated that the (Ce, La)PO4 catalyst prepared with an ultrasound treatment time of 20 min and a ...
Na Li, Kai Yan, Shuning Tan, Ruifang Wang, Zhiyu Zhang   +4 more
wiley   +1 more source

d-Wave Fermi Surface Instability in the Nematic Phase of Two Monolayer FeSe/SrTiO₃. [PDF]

Adv Sci (Weinh)
Angle‐resolved photoemission spectroscopy reveals a d‐wave nematic order in two‐monolayer FeSe/SrTiO3, showing degenerate dxz/dyz bands at Γ but a pronounced splitting at M. This momentum‐dependent anisotropy identifies the nematicity as a d‐wave Fermi surface (Pomeranchuk) instability, highlighting 2D FeSe as a model platform to explore the interplay ...
Tang CY, Peng XL, Yuan YH, Zhang P, Phan GN, Gao SY, Huang YB, Kong LY, Qian T, Li W, Xue QK, Wang ZQ, Jiang K, Sun YJ, Ding H.   +14 more
europepmc   +2 more sources

Magnetron Sputtering Synthesis of La‐Doped BiFeO3 Thin Films and Enhanced Exchange Bias in CoFeB/Bi1‐xLaxFeO3 Heterostructures

Advanced Physics Research, EarlyView.
This study explores the epitaxial growth of high‐quality La‐doped BiFeO3 (BLFO) thin films at 550 °C using magnetron sputtering. The films exhibit good ferroelectric properties and low leakage current. A BLFO/CoFeB heterostructure is constructed, achieving an exchange bias field exceeding the coercive field at room temperature.
Zhiqin Zhou, Ligang Bai, Chen Qi, Xiaoyang Lin, Ivair Aparecido dos Santos, Gustavo Sanguino Dias, Luiz Fernanado Cótica, Weisheng Zhao, Yanxue Chen, Tianxiao Nie, Guodong Wei   +10 more
wiley   +1 more source

Formation and ripening of SrTiO3 nanocrystals on SiO2

APL Materials
The crystallization of complex oxide thin films on amorphous substrates presents a significant challenge because of the lack of long-range order in these substrates and the subsequent difficulty in controlling crystal growth.
L. K. Chinna Kannu, M. H. Marandu, R. Liu, J. M. Hernandez, P. G. Evans   +4 more
doaj   +1 more source

Structural, Superconducting and Magnetic Properties of Oxygen‐Annealed Fe1+yTe Thin Films

Advanced Physics Research, EarlyView.
FeTe:Ox films exhibit exchange bias below their Néel temperatures, which coexists with superconductivity. STEM analysis reveals the structural changes induced by oxygen treatment. DFT calculations indicate that interstitial oxygen suppresses antiferromagnetism and promotes superconductivity.
Miao Meng, Dongsheng Song, Zhiming Xu, Siqian Liu, Weideng Sun, Xi Zhang, Haifeng Du, Zouyouwei Lu, Zhangao Sun, Chenguang Mei, Huaixin Yang, Huanfang Tian, Xiaoli Dong, Jianqi Li, Yong Xu, Yonggang Zhao   +15 more
wiley   +1 more source

Common anion rule in oxide heterointerfaces: Experimental verification by in situ photoemission spectroscopy

APL Materials
The band alignment at the interface is one of the fundamental parameters for designing electronic devices and artificial functional materials. However, there is no firmly established guideline for oxide heterostructures, limiting the functional design of
Ryotaro Hayasaka, Tatsuhiko Kanda, Yuuki Masutake, Duy Khanh Nguyen, Naoto Hasegawa, Seitaro Inoue, Asato Wada, Miho Kitamura, Daisuke Shiga, Kohei Yoshimatsu, Hiroshi Kumigashira   +10 more
doaj   +1 more source

Advances in Regulating Strategies and Applications of Ferroelectric Materials

Advanced Physics Research, EarlyView.
To meet the demand for precise control of performance in nanoelectronic devices, this paper systematically reviews the latest advances in controlling ferroelectric properties through strategies such as external field modulation, low‐dimensional confinement, interface engineering, and topological structure design.
Jianying Ji, Cong Liu, Dan Luo, Zhou Li
wiley   +1 more source

Silent Partners in the Mill: Unveiling the Role of Additives in Mechanochemical Synthesis

Chemistry – A European Journal, EarlyView.
Mechanochemistry offers a sustainable, solvent‐free alternative to traditional synthesis, often enhanced by additives in a process known as additive‐assisted grinding. This review discusses how various additives, including liquids, ionic solids, and advanced materials like ionic liquids and piezoelectric compounds, improve reaction efficiency ...
Johanna Breinsperger, Nika Podlesnik, Francesco Mele, Michael Schnürch   +3 more
wiley   +1 more source

Photocatalytic Oxygen Evolution with Prussian Blue Coated ZnO Origami Core‐Shell Nanostructures

ChemPhysChem, Volume 26, Issue 6, March 15, 2025.
Prussian Blue and its derivative hold significant potential for photocatalytic oxygen evolution. IN this contribution the photocatalytic oxygen evolution reaction (OER) was characterized using a hybrid catalyst consisting of Prussian Blue coated ZnO nanostructures. The resulting heterojunction, which was characterized both structurally and functionally,
Ruby Phul, Guobin Jia, Emir Utku Sekercileroglu, Yves Carstensen, Ratnadip De, Andrea Dellith, Jan Dellith, Jonathan Plentz, Ferdi Karadaş, Benjamin Dietzek‐Ivanšić   +9 more
wiley   +1 more source