HfTe2: Enhancing Magnetoresistance Properties by Improvement of the Crystal Growth Method

The nature of precursor phenomena in the paraelectric phase of ferroelectrics is one of the main questions to be resolved from a fundamental point of view. Barium titanate (BaTiO3) is one of the most representative perovskite-structured ferroelectrics intensively studied until now. The pretransitional behavior of BaTiO3 single crystal grown using a solid-state crystal growth (SSCG) method was investigated for the first time and compared to previous results. There is no melting process in the SSCG method, thus the crystal grown using a SSCG method have inherent higher levels of impurity and defect concentrations, which is a good candidate for investigating the effect of crystal quality on the precursor phenomena. The acoustic, dielectric, and piezoelectric properties, as well as birefringence, of the SSCG-grown BaTiO3 were examined over a wide temperature range. Especially, the acoustic phonon behavior was investigated in terms of Brillouin spectroscopy, which is a complementary technique to Raman spectroscopy. The obtained precursor anomalies of the SSCG-grown BaTiO3 in the cubic phase were similar to those of other single crystals, in particular, of high-quality single crystal grown by top-seeded solution growth method. These results clearly indicate that the observed precursor phenomena are common and intrinsic effect irrespective of the crystal quality.

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Effects of sintering aid and atmosphere powder on the growth of (K0.5Na0.5)NbO3 single crystals fabricated by solid-state crystal growth method

Journal of the European Ceramic Society ◽

10.1016/j.jeurceramsoc.2020.02.038 ◽

2020 ◽

Vol 40 (8) ◽

pp. 2970-2976 ◽

Cited By ~ 3

Author(s):

Ichiro Fujii ◽

Shintaro Ueno ◽

Satoshi Wada

Keyword(s):

Crystal Growth ◽

Solid State ◽

Single Crystals ◽

Sintering Aid ◽

Growth Method

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Proposal of Organic Single Crystal Growth Method Using Electrospray Deposition and Thin-Film Ionic Liquid

physica status solidi (b) ◽

10.1002/pssb.201700351 ◽

2018 ◽

Vol 255 (4) ◽

pp. 1700351 ◽

Cited By ~ 1

Author(s):

Hiroyuki Ueda ◽

Keita Takeuchi ◽

Ryo Terada ◽

Akihiko Kikuchi

Keyword(s):

Thin Film ◽

Ionic Liquid ◽

Crystal Growth ◽

Single Crystal ◽

Single Crystal Growth ◽

Electrospray Deposition ◽

Organic Single Crystal ◽

Growth Method

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Effect of Crystal-Growth Method on Electron Spin Relaxation in Ruby

Physical Review ◽

10.1103/physrev.139.a1275 ◽

1965 ◽

Vol 139 (4A) ◽

pp. A1275-A1280 ◽

Cited By ~ 43

Author(s):

K. J. Standley ◽

R. A. Vaughan

Keyword(s):

Crystal Growth ◽

Spin Relaxation ◽

Electron Spin ◽

Electron Spin Relaxation ◽

Growth Method

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Casting Single Crystal Silicon: Novel Defect Profiles from BP Solar's Mono2 TM Wafers

Solid State Phenomena ◽

10.4028/www.scientific.net/ssp.131-133.1 ◽

2007 ◽

Vol 131-133 ◽

pp. 1-8 ◽

Cited By ~ 99

Author(s):

Nathan Stoddard ◽

Bei Wu ◽

Ian Witting ◽

Magnus C. Wagener ◽

Yongkook Park ◽

...

Keyword(s):

Solar Cells ◽

Crystal Growth ◽

Carrier Lifetime ◽

Minority Carrier ◽

Single Crystal Silicon ◽

Minority Carrier Lifetime ◽

Crystal Silicon ◽

Growth Method ◽

Screen Print ◽

The Impact

A novel crystal growth method has been developed for the production of ingots, bricks and wafers for solar cells. Monocrystallinity is achievable over large volumes with minimal dislocation incorporation. The resulting defect types, densities and interactions are described both microscopically for wafers and macroscopically for the ingot, looking closely at the impact of the defects on minority carrier lifetime. Solar cells of 156 cm2 size have been produced ranging up to 17% in efficiency using industrial screen print processes.

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