Results 61 to 70 of about 17,348 (202)

Synthesis of superconducting pyrochlore RbOs2O6

, 2004
RbOs2O6, the third superconducting pyrochlore oxide (known so far), has been synthesized by encapsulation and by high pressure techniques. Suitable post chemical treatment of the as-prepared sample allowed us to eliminate the impurity phases.
B Batlogg, Brühwiler M Kazakov S M Zhigadlo N D Karpinski J Batlogg B, Hiroi Z Yonezawa S Muraoka Y, J Karpinski, M Brühwiler, N D Zhigadlo, S M Kazakov, Sakai H, Yonezawa S, Yonezawa S, Yonezawa S Muraoka Y Hiroi Z   +10 more
core   +1 more source

Dual‐Phase In Situ Symbiosis Structures for Ultrahigh Capacitive Energy Storage

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
A dual‐phase in situ symbiosis structure designed by introducing a linear‐like pyrochlore phase (P phase) into the ferroelectric Aurivillius phase (A phase) and precisely controlling its proportion provides a new strategy for optimizing dielectric energy storage.
Ying Zhang, Dongpo Song, Yan Lei, Jie Yang, Bingbing Yang   +4 more
wiley   +1 more source

Depleted pyrochlore antiferromagnets

Journal of Physics: Conference Series, 2009
I consider the class of "depleted pyrochlore" lattices of corner-sharing triangles, made by removing spins from a pyrochlore lattice such that every tetrahedron loses exactly one. Previously known examples are the "hyperkagome" and "kagome staircase".
openaire   +2 more sources

Sublattice pairing in pyrochlore Heisenberg antiferromagnets

Physical Review B, 2023
We argue that classical pyrochlore Heisenberg antiferromagnets with small further-neighbor couplings can order in a state where pairs of sublattices form antiparallel spirals. The spiral ordering wave vectors of the two pairs are in general different from each other, and are constrained by which sublattices are being paired.
Cecilie Glittum, Olav F. Syljuåsen
openaire   +3 more sources

High Efficiencies in Gd2Ru2O7 Pyrochlore Oxide Photoanode‐Based Dye‐Sensitized Solar Cells Using Natural Dyes From Anacardium, Baphia nitida, and Lannea kerstingii Barks

Progress in Photovoltaics: Research and Applications, EarlyView.
High performance of Gd2Ru2O7‐based natural dye‐sensitized solar cell using three different dyes (Anacardium, B. nitida, and Lannea kerstingii barks) has been developed. Enhanced energy conversion efficiency values were obtained compared to classical TiO2 P25‐based DSSC. ABSTRACT Natural dye‐sensitized solar cells (DSSC‐N), inspired by the principles of
A. F. Kraidy, A. S. Yapi, J. K. Datte, K. B. Attioua, M. El Marssi, A. Ferri, J. Ternel, Y. Gagou   +7 more
wiley   +1 more source

Oxidative Coupling of Methane: Perspective for High-Value C₂ Chemicals

Crystals, 2021
The oxidative coupling of methane (OCM) to C2 hydrocarbons (C2H4 and C2H6) has aroused worldwide interest over the past decade due to the rise of vast new shale gas resources.
Palle Ramana Murthy, Yang Liu, Guohao Wu, Yanan Diao, Chuan Shi   +4 more
doaj   +1 more source

Emergent excitations in a geometrically frustrated magnet

, 2002
Frustrated systems are ubiquitous and interesting because their behavior is difficult to predict. Magnetism offers extreme examples in the form of spin lattices where all interactions between spins cannot be simultaneously satisfied.
AJ Garcia-Adeva, AP Ramirez, AP Ramirez, B Canals, C Broholm, C. Broholm, G. Gasparovic, HL Stormer, M Mekata, PG Debenedetti, PG Wolynes, Q. Huang, R Moessner, R Moessner, R Moessner, RB Laughlin, RJ Birgeneau, S-H Lee, S-H Lee, S.-H. Lee, S.-W. Cheong, ST Bramwell, SW Lovesey, T. H. Kim, VS Pande, W. Ratcliff, YJ Uemura   +26 more
core   +1 more source

Novel Non‐Equimolar High‐Entropy Zirconates With Superior Thermophysical Properties

Rare Metals, EarlyView.
ABSTRACT Rare‐earth zirconates (RE2Zr2O7) are promising candidates for topcoat materials in thermal barrier coatings (TBCs). However, their practical application in TBCs is limited by poor fracture toughness and low thermal expansion coefficient (TEC).
Taoyi Lu, Zhiqin Wen, Suzhen Kang, Li Tang, Jiyuan Huang, Gaoxiang Wei, Rui Zhang, Yuhong Zhao   +7 more
wiley   +1 more source

Novel ordering of the pyrochlore Heisenberg antiferromagnet with the ferromagnetic next-nearest-neighbor interaction

, 2006
The ordering property of the classical pyrochlore Heisenberg antiferromagnet with the ferromagnetic next-nearest-neighbor interaction is investigated by means of a Monte Carlo simulation. The model is found to exhibit a first-order transition at a finite
Daisuke Tsuneishi, Henley C L, Hikaru Kawamura, Ioki M Kawamura H, Masayuki Ioki, Moessner R, Tsuneishi D Ioki M Kawamura H   +6 more
core   +1 more source

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

Advanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda, Jorge Cardenas‐Gamboa, Ding Pei, François Bertran, Leila Noohinejad, Snehashish Chatterjee, Changjiang Yi, Iñigo Robredo, Horst Borrmann, Maia G. Vergniory, Chandra Shekhar, Claudia Felser   +11 more
wiley   +1 more source