Results 31 to 40 of about 8,900 (218)

Phase diagram analysis and crystal growth of solid solutions Ca_{1-x}Sr_xF_2

open access: yes, 2007
The binary phase diagram CaF$_2$--SrF$_2$ was investigated by differential thermal analysis (DTA). Both substances exhibit unlimited mutual solubility with an azeotropic point showing a minimum melting temperature of T_\mathrm{min}=1373^{\circ}$C for the
Burnett   +9 more
core   +1 more source

Structure and properties of (Nd,Sr)(Al,Ta)O3 (NSAT) substrate crystals

open access: yesActa Crystallographica Section B, EarlyView.
An emerging cubic substrate material (Nd,Sr)(Al,Ta)O3 (NSAT) has been structurally and spectroscopically characterized revealing that the nominally cubic NSAT consists of partially developed cubic superstructure domains with doubled unit‐cell parameter.
Roberts Blukis   +10 more
wiley   +1 more source

Temperature fields in a growing solar silicon crystal [PDF]

open access: yesТехнологія та конструювання в електронній апаратурі, 2012
The optimal thermal terms for growing by Czochralski method Si single-crystals, suitable for making photoelectric energy converters, has been defined by the computer simulation method. Dependences of temperature fields character and crystallization front
A. I. Kondrik   +2 more
doaj   +1 more source

Study on the Hierarchical Predictive Control of Semiconductor Silicon Single Crystal Quality Based on the Soft Sensor Model

open access: yesSensors, 2023
Silicon single crystal (SSC) quality monitoring and control has been a hot research topic in the field of the Czochralski crystal growth process. Considering that the traditional SSC control method ignores the crystal quality factor, this paper proposes ...
Yin Wan   +3 more
doaj   +1 more source

High temperature thermoelectric efficiency in Ba8Ga16Ge30 [PDF]

open access: yes, 2008
The high thermoelectric figure of merit (zT) of Ba8Ga16Ge30 makes it one of the best n-type materials for thermoelectric power generation. Here, we describe the synthesis and characterization of a Czochralski pulled single crystal of Ba8Ga16Ge30 and ...
Christensen, M.   +3 more
core   +1 more source

The Interplay of Magnetic Order with the Electronic Scattering and Crystal‐Field Effects in a Metallic Ferromagnet

open access: yesAdvanced Science, Volume 13, Issue 13, 3 March 2026.
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 ...
Payel Shee   +11 more
wiley   +1 more source

Self‐Trapped Hole Migration and Defect‐Mediated Thermal Quenching of Luminescence in α‐ and β‐Ga2O3

open access: yesAdvanced Functional Materials, Volume 36, Issue 13, 12 February 2026.
Temperature‐dependent photoluminescence and first‐principles calculations reveal self‐trapped hole migration as the microscopic origin of thermal quenching in α‐ and β‐Ga2O3. The low migration barrier in α‐Ga2O3 enables defect trapping and enhances blue luminescence, while the higher barrier in β‐Ga2O3 preserves ultraviolet emission at elevated ...
Nima Hajizadeh   +11 more
wiley   +1 more source

The problems of Langasite single crystals growth and their solution

open access: yesТонкие химические технологии, 2008
The problems of Langasite single crystals growth by Czochralski and Bridgman methods were analyzed. It was found that the deferent kinds of defects in langasite crystals influence on physical properties and thus on langasite crystals application.
E. N. Domoroshchina   +2 more
doaj  

Successive Orthorhombic Distortions in Kagome Metals by Molecular Orbital Formation

open access: yesAdvanced Materials, Volume 38, Issue 8, 6 February 2026.
Orthorhombic distortions in kagome metals break the symmetry required for exotic charge order. Synchrotron X‐ray diffraction of NdRu3Si2 reveals successive orthorhombic transitions driven by molecular orbital formation between kagome layers. The frustrated kagome lattice hosts degenerate patterns of kagome dimers whose short‐range correlations produce ...
Ryo Misawa   +15 more
wiley   +1 more source

Research progress in fresnoite high-temperature piezoelectric crystal and its sensors

open access: yesCailiao gongcheng
Piezoelectric materials, as important functional materials, have been widely used in various fields of the national economy for the preparation of structural health detection devices.
LI Yanan   +4 more
doaj   +1 more source

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