Results 101 to 110 of about 4,273 (189)

The nanoscale phase separation in hole-doped manganites

, 2007
A macroscopic phase separation, in which ferromagnetic clusters are observed in an insulating matrix, is sometimes observed, and believed to be essential to the colossal magnetoresistive (CMR) properties of manganese oxides. The application of a magnetic
Akahoshi D., Aliaga H., Attfield J. P., Barbara B., Chi S., Dagotto E., Dietl T., Dupuis V., Fisher D. S., Hanasaki N., Hansen M. F., Jirák Z., Jonason K., Jonsson T., Jönsson P. E., Jönsson P. E., Jönsson P. E., Kimura T., Kimura T., Liu S. Q., Mathieu R., Mathieu R., Mathieu R., Mathieu R., Mathieu R., Mathieu R., Mathieu R., Mathieu R., Mathieu R., Mattsson J., Mattsson J., Motome Y., Raveau B., Sen C., Sternlieb B. J., Susuki M., Taguchi Y., Takeshita N., Tokunaga Y., Tokunaga Y., Tokura Y., Tomioka Y., Tomioka Y., Uchida M., Wills A. S., Yamada H., Yu X. Z., Ziese M.   +47 more
core   +1 more source

Active and durable R₂MnRuO₇ pyrochlores with low Ru content for acidic oxygen evolution. [PDF]

Nat Commun, 2023
Galyamin D, Torrero J, Rodríguez I, Kolb MJ, Ferrer P, Pascual L, Salam MA, Gianolio D, Celorrio V, Mokhtar M, Garcia Sanchez D, Gago AS, Friedrich KA, Peña MA, Alonso JA, Calle-Vallejo F, Retuerto M, Rojas S.   +17 more
europepmc   +1 more source

First-principles study of structural, elastic, and bonding properties of pyrochlores

, 2005
Density Functional Theory calculations have been performed to obtain lattice parameters, elastic constants, and electronic properties of ideal pyrochlores with the composition A$_2$B$_2$O$_7$ (where A=La,Y and B=Ti,Sn,Hf, Zr). Some thermal properties are
Artacho, Emilio, Pruneda, J. M.
core   +1 more source

Coulombic Quantum Liquids in Spin-1/2 Pyrochlores

, 2011
We develop a non-perturbative "gauge Mean Field Theory" (gMFT) method to study a general effective spin-1/2 model for magnetism in rare earth pyrochlores. gMFT is based on a novel exact slave-particle formulation, and matches both the perturbative regime
Balents, Leon, Savary, Lucile
core   +3 more sources

Are multiphase competition & order-by-disorder the keys to understanding Yb2Ti2O7?

, 2015
If magnetic frustration is most commonly known for undermining long-range order, as famously illustrated by spin liquids, the ability of matter to develop new collective mechanisms in order to fight frustration is no less fascinating, providing an avenue
Benton, Owen, Gingras, Michel J. P., Jaubert, L. D. C., Oitmaa, J., Rau, Jeffrey G., Shannon, Nic, Singh, R. R. P.   +6 more
core   +1 more source

Electronic Structure Calculations of A2Ti2O7 (A = Dy, Ho, and Y)

Advances in Condensed Matter Physics, 2013
Ab initio calculations have been performed on titanate pyrochlores A2Ti2O7 (A = Dy, Ho, and Y) to investigate their electronic structures. The generalized gradient approximation (GGA) + U formalism has been used to correct the strong onsite Coulomb ...
H. Y. Xiao
doaj   +1 more source

Ab Initio Molecular Dynamics Study of Electron Excitation Effects on UO₂ and U₃Si. [PDF]

Materials (Basel), 2023
Jin R, Zhao S, Xiao H.
europepmc   +1 more source

Covalency‐Controlled Titanate Pyrochlore Nanoparticles with Enhanced Oxygen Electrocatalytic Activity for Zinc–Air Batteries

ChemElectroChem
Pure‐phase titanate pyrochlores, BIi2Ti2O7 (BTO) and Y2Ti2O7 (YTO), are synthesized via an optimized sol–gel method that effectively suppresses secondary phase formation and produces uniform nanoparticle morphologies.
Jinyeong Choi, Heokjun Jang, Duho Han, Sungbin Kang, Hyeongbeen Kim, Jin Hong Lee, Jeong‐Hyeon Kim, Joohyuk Park, Minjoon Park   +8 more
doaj   +1 more source

Features of Phase Formation of Pyrochlore-type Ceramics Bi₂Mg(Zn)_1-x Ni _x Ta₂O₉. [PDF]

ACS Omega, 2023
Zhuk NA, Kovalenko SY, Korolev RI, Makeev BA, Krzhizhanovskaya MG, Sivkov DV, Nekipelov SV, Sivkov VN, Yermolina MV.   +8 more
europepmc   +1 more source

Novel pyrochlores in the Bi2O3–MgO–Ta2O5 (BMT) system: Synthesis optimisation, phase equilibria and dielectric properties

Journal of Science: Advanced Materials and Devices
Investigating the phase equilibria within the Bi2O3–MgO–Ta2O5 (BMT) system offers critical insights into the formation and stability of pyrochlore phases.
K.B. Tan, P.Y. Tan, Y. Feng, C.C. Khaw, V. Raman, H.C. Ananda Murthy, R. Balachandran, S.K. Chen, O.J. Lee, K.Y. Chan, D. Zhou, M. Lu   +11 more
doaj   +1 more source