Results 91 to 100 of about 17,445 (204)

Weyl semimetal from spontaneous inversion symmetry breaking in pyrochlore oxides

, 2015
We study the electronic properties of strongly spin-orbit coupled electrons on the elastic pyrochlore lattice. Akin to the Peierls transition in one-dimensional systems, the coupling of the lattice to the electronic degrees of freedom can stabilize a ...
Bzdušek, Tomáš, Rüegg, Andreas, Sigrist, Manfred   +2 more
core   +1 more source

High-entropy pyrochlores with low thermal conductivity for thermal barrier coating materials

Journal of Advanced Ceramics, 2019
High-entropy pyrochlore-type structures based on rare-earth zirconates are successfully produced by conventional solid-state reaction method. Six rare-earth oxides (La2O3, Nd2O3, Sm2O3, Eu2O3, Gd2O3, and Y2O3) and ZrO2 are used as the raw powders.
Fei Li, Lin Zhou, Ji-Xuan Liu, Yongcheng Liang, Guo-Jun Zhang   +4 more
doaj   +1 more source

Superelastic High‐Entropy Oxide Ceramic Aerogels for Thermal Superinsulation and Sealing at Extreme Conditions

Advanced Science, Volume 13, Issue 11, 23 February 2026.
A high‐entropy oxide ceramic of (Gd1/2Lu1/2)2(Ti1/3Zr1/3Hf1/3)2O7 is prepared through a molecular synthesis route of pyrolytic solid‐solution reactions. The architectured nanofiber aerogel manifests unprecedented thermomechanical properties, including superelastic compressibility of 98% from −196 to 1500 °C, and thermal superinsulation capacity (24.14 ...
Xiaoke Jiang, Tao Du, Hengzhong Fan, Junhong Liu, Yunfeng Su, Peng He, Hongxiang Chen, Litian Hu, Yongsheng Zhang, Qiangqiang Zhang   +9 more
wiley   +1 more source

Magnetic susceptibility of diluted pyrochlore and SCGO antiferromagnets

, 1999
We investigate the magnetic susceptibility of the classical Heisenberg antiferromagnet with nearest-neighbour interactions on the geometrically frustrated pyrochlore lattice, for a pure system and in the presence of dilution with nonmagnetic ions.
A. B. Harris, A. J. Berlinsky, A. P. Ramirez, A. P. Ramirez, A. P. Ramirez, A. P. Ramirez, B. D. Gaulin, D. A. Garanin, D. L. Huber, E. F. Shender, E. F. Shender, J. N. Reimers, J. S. Gardner, J. Spalek, J. Villain, M. J. Harris, M. J. Harris, M. J. P. Gingras, M. P. Zinkin, P. Schiffer, P. Schiffer, P. Schiffer, P. W. Anderson, R. Ballou, R. Moessner, R. Moessner, R. Moessner, R. Moessner, S. R. Dunsiger, S. T. Bramwell, Y. Shimakawa   +30 more
core   +1 more source

Spin Dynamics in Pyrochlore Heisenberg Antiferromagnets

Physical Review Letters, 2009
4 pages, 4 figures, submitted to ...
Conlon, P, Chalker, J
openaire   +4 more sources

Hierarchical Embedded Sphere Model: An Interpretable ML‐Guided Multiscale Descriptor Engineering Decodes OER Activity on TM@MO2 Catalysts

Advanced Science, Volume 13, Issue 11, 23 February 2026.
Hierarchical Embedded Sphere Model combines DFT and interpretable machine learning to decode catalytic activity on TM‐doped MO2. It disentangles global electronic, active‐site, and local coordination effects, revealing two activation mechanisms: dopant‐driven (Rh@MO2) and coordination‐mediated (Fe@ZrO2).
Ziyuan Li, Shan Gao, Yunhan Wang, Yueyu Zhang, Weichao Wang, Xiangmei Duan   +5 more
wiley   +1 more source

Classical heisenberg antiferromagnet away from the pyrochlore lattice limit: entropic versus energetic selection

, 2002
The stability of the disordered ground state of the classical Heisenberg pyrochlore antiferromagnet is studied within extensive Monte Carlo simulations by introducing an additional exchange interaction $J'$ that interpolates between the pyrochlore ...
B. Canals, B. Canals, B. Canals, C. Lacroix, C. Pinettes, C.H. Booth, C.L. Henley, G. Ferey, H.T. Diep, I. Ritchey, J. T. Chalker, J. Villain, J. Villain, J.N. Reimers, J.N. Reimers, J.N. Reimers, K. Terao, M.J. Harris, M.T. Heinila, P. Schiffer, R. Moessner, R. Moessner, R. Moessner, S.E. Palmer, S.T. Bramwell, W. Minor   +25 more
core   +2 more sources

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

Electric field response in breathing pyrochlores [PDF]

The European Physical Journal B, 2019
We study the effects of a uniform electric field on the the ground state and excitations of the three-dimensional U(1) spin liquid phase of a breathing pyrochlore lattice, arising due to the coupling between the conventional (Maxwell) electric field and the emergent electrodynamics of the quantum spin ice material.
openaire   +2 more sources

Crystal growth, structural studies and superconducting properties of beta-pyrochlore KOs2O6

, 2006
Single crystals of KOs2O6 have been grown in a sealed quartz ampoule. Detailed single crystal X-ray diffraction studies at room temperature show Bragg peaks that violate Fd-3m symmetry.
A. G. Lebed, A. I. Larkin, A. I. Larkin, G. Schuck, J. Karpinski, J. Yamaura, K. Maki, K. Rogacki, M. T. Weller, N. D. Zhigadlo, S. M. Kazakov   +10 more
core   +1 more source