Results 21 to 30 of about 7,016 (252)

The growth and optical properties of Bi12SiO20 single crystals [PDF]

open access: yesJournal of the Serbian Chemical Society, 2002
Single crystals of Bi12SiO20 were grown from the melt by the Czochralski technique. The critical crystal diameter dc=10 mm and the critical rate of rotation ωc=20 rpm were calculated by equations from the hydrodynamics of a melt.
Golubović Aleksandar V.   +4 more
doaj   +3 more sources

The growth of ruby single crystals [PDF]

open access: yesJournal of the Serbian Chemical Society, 2005
Ruby (Cr:Al2O3) single crystals were grown by the Czochralski technique in an argon atmosphere. The critical crystal diameter dc = 1.0 cm and the critical rate of rotation wc = 20 rpm were calculated by equations of the hydrodynamics of the melt.
ALEKSANDAR GOLUBOVIC   +3 more
doaj   +3 more sources

Raman and IR spectra of pure and doped forsterite single crystals [PDF]

open access: yesScience of Sintering, 2009
Forsterite single crystals were grown by the Czochralski technique in air. The lattice parameters were determined by X-ray power diffraction. The IR and Raman spectra of pure and doped (V3+, V5+, and Ni4+) Mg2SiO4 single crystals were measured at room ...
Golubović A.   +2 more
doaj   +1 more source

The optical properties of bismuth germanium oxide single crystals [PDF]

open access: yesJournal of the Serbian Chemical Society, 2000
Bi12GeO20 single crystals were grown by the Czochralski technique. Suitable polishing and etching solutions were determined. Reflection spectra were recorded in the wave numbers range 20-5000 cm-1, and compared with the spectra of Bi12SiO20 ...
Golubović Aleksandar   +3 more
doaj   +3 more sources

The optical properties of LiNbO3 single crystals obtained in air atmosphere [PDF]

open access: yesJournal of the Serbian Chemical Society, 1999
Single crystals of LiNbO3 were grown by the Czochralski technique in an air atmosphere. The critical diameter and the critical rate of rotation were calculated.
Golubović Aleksandar   +6 more
doaj   +3 more sources

The Interplay of Magnetic Order with the Electronic Scattering and Crystal-Field Effects in a Metallic Ferromagnet. [PDF]

open access: yesAdv Sci (Weinh)
The interplay between magnetic ordering and crystal electric field (CEF) excitations plays a pivotal role in defining the low‐energy electrodynamics of quantum materials. By probing the temperature‐dependent THz conductivity in a rare‐earth‐based metallic ferromagnet, we uncover a microscopic connection between localized and itinerant electrons ...
Shee P   +11 more
europepmc   +2 more sources

Hydrodynamics and heat exchange of crystal pulling from melts. Part II: Numerical study of free convection mode [PDF]

open access: yesModern Electronic Materials, 2021
This work is a brief overview of numerical study results for hydrodynamics and convective heat exchange for the classic Czochralski technique obtained at the Institute of Thermophysics, Siberian Branch of the Russian Academy of Sciences.
Vladimir S. Berdnikov
doaj   +3 more sources

Calibration and Irradiation Study of the BGO Background Monitor for the BEAST II Experiment [PDF]

open access: yes, 2017
Beam commissioning of the SuperKEKB collider began in 2016. The Beam Exorcism for A STable experiment II (BEAST II) project is particularly designed to measure the beam backgrounds around the interaction point of the SuperKEKB collider for the Belle II ...
Brown, André EX   +11 more
core   +6 more sources

Destabilization of free convection by weak rotation [PDF]

open access: yes, 2011
This study offers an explanation of a recently observed effect of destabilization of free convective flows by weak rotation. After studying several models where flows are driven by a simultaneous action of convection and rotation, it is concluded that ...
A. Yu. Gelfgat   +7 more
core   +2 more sources

Cost of Czochralski wafers as a function of diameter [PDF]

open access: yes, 1980
The impact of diameter in the range of 10 to 15 cm on the cost of wafers sliced from Czochralski ingots was analyzed. Increasing silicon waste and decreasing ingot cost with increasing ingot size were estimated along with projected costs.
Kachare, A., Leipold, M. H., Radics, C.
core   +2 more sources

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