Results 91 to 100 of about 17,617 (171)

Dipolar Interactions and Origin of Spin Ice in Ising Pyrochlore Magnets

, 2000
Recent experiments suggest that the Ising pyrochlore magnets ${\rm Ho_{2}Ti_{2}O_{7}}$ and ${\rm Dy_{2}Ti_{2}O_{7}}$ display qualitative properties of the spin ice model proposed by Harris {\it et al.} \prl {\bf 79}, 2554 (1997).
A. P. Ramirez, Byron C. den Hertog, J. N. Reimers, J. S. Gardner, J. Villain, L. Pauling, M. Born, M. J. Harris, M. J. Harris, Michel J. P. Gingras, N. P. Raju, R. Moessner, R. Siddharthan, S. T. Bramwell, S. W. de Leeuw   +14 more
core   +1 more source

Process—structure correlations in co-precipitation synthesized lanthanum zirconates

Materials Research Express
Rare Earth Zirconates with pyrochlore/flourite structure have attracted interests owing to their immense potential in modern technological applications.
Saideep Shirish Bhat, K A Irshad, Mahima Almeida, M Sivakumar, P Vairavel, S C Gurumurthy, Raghavendra K G   +6 more
doaj   +1 more source

The spin-1/2 Heisenberg ferromagnet on the pyrochlore lattice: A Green's function study

Condensed Matter Physics, 2018
We consider the pyrochlore-lattice quantum Heisenberg ferromagnet and discuss the properties of this spin model at arbitrary temperatures. To this end, we use the Green's function technique within the random-phase (or Tyablikov) approximation as well as ...
T. Hutak, P. Müller, J. Richter, T. Krokhmalskii, O. Derzhko   +4 more
doaj   +1 more source

Magnetic Monopoles in Spin Ice

, 2007
Electrically charged particles, such as the electron, are ubiquitous. By contrast, no elementary particles with a net magnetic charge have ever been observed, despite intensive and prolonged searches.
Castelnovo, Claudio, Moessner, Roderich, Sondhi, Shivaji L.   +2 more
core   +1 more source

Tuning properties through disorder: structural, optical, and mechanical insights into novel medium-entropy rare-earth hafnate pyrochlores

Materials Research Express
Entropy-stabilized oxides find application in several areas due to their interesting properties which comes from the four core attributes—entropy-stabilization effect, severe lattice distortion effect, sluggish diffusion effect and cocktail effect.
Gaius Cherian Mathew, Shijo Thomas
doaj   +1 more source

Superconductivity and Rattling under High Pressure in the beta-Pyrochlore Oxide RbOs2O6

, 2011
Rattling-induced superconductivity in the beta-pyrochlore oxide RbOs2O6 is investigated under high pressures up to 6 GPa. Resistivity measurements in a high-quality single crystal show that the superconducting transition temperature Tc increases ...
Brühwiler M., Brühwiler M., Brühwiler M., Caplin A. D., Dahm T., Errandonea D., Galati R., Hanawa M., Hasegawa T., Hattori K., Hiroi Z., Hiroi Z., Hiroi Z., Iguchi D., Isono T., Isono T., Isono T., Khasanov R., Kunes J., Kunes J., Löhneysen H. v., Magishi K., Manalo S., Miyoshi K., Mori N., Muramatsu T., Murata K., Mutka H., Nagao Y., Ogusu H., Ogusu H., Sales B. C., Saniz R., Sasai K., Schoenes J., Yamaura J., Yonezawa S., Yoshida M.   +37 more
core   +1 more source

Dielectric dispersion in Bi3Zn2Sb3O14 ceramic: a pyrochlore type phase

Materials Research, 2003
The electric and dielectric properties of Bi3Zn2Sb3O14 ceramic were studied by impedance spectroscopy. The measurements were performed in the frequency range 5 to 13 MHz and at temperature ranges from 25 to 700 degreesC.
Lanfredi Silvania, Nobre Marcos A. de Lima   +1 more
doaj  

U-Pb dating of niobium minerals from the pyrochlore group (Ilmeny-Vishnevogorsky carbonatite-miaskite complex, South Urals)

Литосфера, 2020
The article covers the U-Pb dating of minerals belonging to the pyrochlore group from the rare-metal ore deposits of Ilmeny-Vishnevogorsky carbonatite-miaskite complex (South Urals). Individual pyrochlore crystals were dated through a new technique of in-
I. L. Nedosekova, V. A. Koroteev, B. V. Belyatsky, V. V. Sharygin, Е. N. Lepechinа, S. V. Pribavkin   +5 more
doaj  

Dry Reforming of Methane over Pyrochlore-Type La₂Ce₂O₇-Supported Ni Catalyst: Effect of Particle Size of Support

Molecules
The properties of supports (such as oxygen vacancies, oxygen species properties, etc.) significantly impact the anti-carbon ability due to their promotional effect on the activation of CO2 in dry reforming of methane (DRM).
Zeling Zhou, Chao Li, Junfeng Zhang, Qiliang Gao, Jiahao Wang, Qingde Zhang, Yizhuo Han   +6 more
doaj   +1 more source

FROM THE HISTORY OF OPENING AND DEVELOPMENT ORE RICHES OF THE CHERRY MOUNTAINS IN THE URALS [PDF]

Минералогия, 2017
The main stages of exploration of mineral deposits and the contribution of many researchers to the study of geology and mineralogy of the Vishnevy Mountains in the Urals are considered.
V.I. Popova, S.N. Nikandrov
doaj