Results 91 to 100 of about 4,273 (189)

Quantum Spin Liquids Stabilized by Disorder in Non‐Kramers Pyrochlores

Annalen der Physik, Volume 538, Issue 1, January 2026.
This study explores how random structural disorder induces a quantum spin‐liquid phase in non‐Kramers pyrochlore oxides. Using a real‐space gauge mean‐field approach to the random transverse‐field Ising model, we demonstrate that the quantum spin ice appears and remains remarkably robust against disorder, with only a narrow Griffiths region near the ...
Marcus V. Marinho, Eric C. Andrade
wiley   +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

Low temperature and high pressure Raman and x-ray studies of pyrochlore Tb$_2$Ti$_2$O$_7$ : phonon anomalies and possible phase transition

, 2009
We have carried out temperature and pressure-dependent Raman and x-ray measurements on single crystals of Tb$_2$Ti$_2$O$_7$. We attribute the observed anomalous temperature dependence of phonons to phonon-phonon anharmonic interactions. The quasiharmonic
Dhalenne, G., Dkhil, B., Karmakar, S., Muthu, D. V. S, Poswal, H. K., Revcolevschi, A., Saha, Surajit, Sharma, Surinder M., Singh, Surjeet, Sood, A. K., Suryanarayanan, R.   +10 more
core   +3 more sources

Characterization and densification of defect pyrochlore oxide powders ABi2Ta5O16 (A=Na, Tl)

Heliyon, 2019
Defect pyrochlore oxide powders ABi2Ta5O16, in the pseudo-binary systems BiTaO4–ATa3O8 (A = Na, Tl), were prepared by solid state method. The structural study showed that all oxides crystallize in a cubic system with the space group Fd3m, the lattice ...
O. Ait Sidi Ahmed, L. Bourja, A. Chagraoui, A. Tairi, A. Moussaoui, H. Ait Oulahyane, B. Manoun, S. Villain   +7 more
doaj   +1 more source

Transition to Long Range Magnetic Order in the Highly Frustrated Insulating Pyrochlore Antiferromagnet Gd_2Ti_2O_7

, 1999
Experimental evidence from measurements of the a.c. and d.c. susceptibility, and heat capacity data show that the pyrochlore structure oxide, Gd_2Ti_2O_7, exhibits short range order that starts developing at 30K, as well as long range magnetic order at ...
B. Canals, B. D. Gaulin, C. Heremans, C. Wengel, Ch. Waldtmann, E. Rastelli, E. Rastelli, F. Mila, G. Toulouse, H. R. Child, H. T. Diep, H. W. J. Blöte, J. A. Mailhot, J. D. Cashion, J. D. Cashion, J. E. Greedan, J. E. Greedan, J. E. Greedan, J. E. Greedan, J. M. D. Coey, J. N. Reimers, J. N. Reimers, J. N. Reimers, J. N. Reimers, J. S. Gardner, J. Villain, K. Binder, K. H. Fischer, M. Dion, M. J. Harris, M. J. Harris, M. J. P. Gingras, M. J. P. Gingras, M. P. Zinkin, M. T. Heinila, N. P. Raju, N. P. Raju, O. A. Petrenko, O. A. Petrenko, P. Chandra, P. Hakonen, P. Lecheminant, P. Schiffer, P. Schiffer, P. Schiffer, R. M. Moon, R. Moessner, R. Moessner, R. Moessner, S. Hov, S. R. Dunsiger, S. Sachdev, S. T. Bramwell, S. T. Bramwell, T. E. Mason, W. I. Kinney, W. Minor, W. Schiessl   +57 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

Low-Temperature Synthesis of Magnetic Pyrochlores (R₂Mn₂O₇, R = Y, Ho-Lu) at Ambient Pressure and Potential for High-Entropy Oxide Synthesis. [PDF]

Inorg Chem, 2023
Karoblis D, Stewart OC, Glaser P, El Jamal SE, Kizalaite A, Murauskas T, Zarkov A, Kareiva A, Stoll SL.   +8 more
europepmc   +1 more source

Superconductivity in Geometrically Frustrated Pyrochlore RbOs2O6

, 2004
We report the basic thermodynamic properties of the new geometrically frustrated beta-pyrochlore bulk superconductor RbOs2O6 with a critical temperature Tc = 6.4 K. Specific heat measurements are performed in magnetic fields up to 12 T.
A. P. Ramirez, B. Batlogg, J. Bardeen, J. Karpinski, K. Maki, M. Brühwiler, N. D. Zhigadlo, S. M. Kazakov   +7 more
core   +1 more source

Metallic "Ferroelectricity" in the Pyrochlore Cd2Re2O7

Physical review letters, 2004
A class of materials known as ``ferroelectric metals'' was discussed theoretically by Anderson and Blount in 1965 [Phys. Rev. Lett. 14, 217 (1965)], but to date no examples of this class have been reported. Here we present measurements of the elastic moduli of Cd2Re2O7 through the 200 K cubic-to-tetragonal phase transition.
Sergienko, I. A., Keppens, V., McGuire, M., Jin, R., He, J., Curnoe, S. H., Sales, B. C., Blaha, P., Singh, D. J., Schwarz, K., Mandrus, D.   +10 more
openaire   +3 more sources

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