Crystal growth of superconducting La2126 without HIP treatment

Kazuhiro Koike; Takashi Noji; Tadashi Adachi; Yoji Koike

doi:10.1063/1.2354805

Crystal growth of superconducting La2126 without HIP treatment

Kazuhiro Koike, Takashi Noji, Tadashi Adachi, Yoji Koike

ENG - Applied Physics

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We have succeeded in the crystal growth of the superconducting La _2-x-yBa_xSr_yCaCu₂O₆ of the La2126 phase by only the traveling-solvent floating-zone (TSFZ) method without the hot-isostatic-pressure (HIP) treatment. In the TSFZ growth, we added a small amount of B₂O₃ to the solvent for the stabilization of the growth and used high-pressure oxygen of ∼ 10 atm as a growth atmosphere for the suppression of oxygen defects. We have obtained single crystals with the size of the order of 2×2×3 mm³ and determined the composition to be La_1.80Ba_0.07Sr_0.19Ca _0.97Cu_1.97O₆ by the inductively-coupled-plasma atomic-emission-spectrometry. The powder x-ray diffraction has revealed that the crystals are of the single phase of La2126 and include no impurity phases such as La_2-xM_xCuO₄ (M: alkaline earth). The as-grown single crystals have shown superconductivity of the bulk with the transition temperature T_c = 20 K.

Original language	English
Title of host publication	LOW TEMPERATURE PHYSICS
Subtitle of host publication	24th International Conference on Low Temperature Physics - LT24
Pages	503-504
Number of pages	2
DOIs	https://doi.org/10.1063/1.2354805
Publication status	Published - 2006 Dec 1
Event	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24 - Orlando, FL, United States Duration: 2006 Aug 10 → 2006 Oct 17

Publication series

Name	AIP Conference Proceedings
Volume	850
ISSN (Print)	0094-243X
ISSN (Electronic)	1551-7616

Other

Other	LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24
Country/Territory	United States
City	Orlando, FL
Period	06/8/10 → 06/10/17

Keywords

Crystal growth
Cuprate
La2126
Superconductivity
Traveling-solvent floating-zone method

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1063/1.2354805

Cite this

Koike, K, Noji, T, Adachi, T & Koike, Y 2006, Crystal growth of superconducting La2126 without HIP treatment. in LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24. AIP Conference Proceedings, vol. 850, pp. 503-504, LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24, Orlando, FL, United States, 06/8/10. https://doi.org/10.1063/1.2354805

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title = "Crystal growth of superconducting La2126 without HIP treatment",

abstract = "We have succeeded in the crystal growth of the superconducting La 2-x-yBaxSryCaCu2O6 of the La2126 phase by only the traveling-solvent floating-zone (TSFZ) method without the hot-isostatic-pressure (HIP) treatment. In the TSFZ growth, we added a small amount of B2O3 to the solvent for the stabilization of the growth and used high-pressure oxygen of ∼ 10 atm as a growth atmosphere for the suppression of oxygen defects. We have obtained single crystals with the size of the order of 2×2×3 mm3 and determined the composition to be La1.80Ba0.07Sr0.19Ca 0.97Cu1.97O6 by the inductively-coupled-plasma atomic-emission-spectrometry. The powder x-ray diffraction has revealed that the crystals are of the single phase of La2126 and include no impurity phases such as La2-xMxCuO4 (M: alkaline earth). The as-grown single crystals have shown superconductivity of the bulk with the transition temperature Tc = 20 K.",

keywords = "Crystal growth, Cuprate, La2126, Superconductivity, Traveling-solvent floating-zone method",

author = "Kazuhiro Koike and Takashi Noji and Tadashi Adachi and Yoji Koike",

year = "2006",

month = dec,

day = "1",

doi = "10.1063/1.2354805",

language = "English",

isbn = "0735403473",

series = "AIP Conference Proceedings",

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T1 - Crystal growth of superconducting La2126 without HIP treatment

AU - Koike, Kazuhiro

AU - Noji, Takashi

AU - Adachi, Tadashi

AU - Koike, Yoji

PY - 2006/12/1

Y1 - 2006/12/1

N2 - We have succeeded in the crystal growth of the superconducting La 2-x-yBaxSryCaCu2O6 of the La2126 phase by only the traveling-solvent floating-zone (TSFZ) method without the hot-isostatic-pressure (HIP) treatment. In the TSFZ growth, we added a small amount of B2O3 to the solvent for the stabilization of the growth and used high-pressure oxygen of ∼ 10 atm as a growth atmosphere for the suppression of oxygen defects. We have obtained single crystals with the size of the order of 2×2×3 mm3 and determined the composition to be La1.80Ba0.07Sr0.19Ca 0.97Cu1.97O6 by the inductively-coupled-plasma atomic-emission-spectrometry. The powder x-ray diffraction has revealed that the crystals are of the single phase of La2126 and include no impurity phases such as La2-xMxCuO4 (M: alkaline earth). The as-grown single crystals have shown superconductivity of the bulk with the transition temperature Tc = 20 K.

AB - We have succeeded in the crystal growth of the superconducting La 2-x-yBaxSryCaCu2O6 of the La2126 phase by only the traveling-solvent floating-zone (TSFZ) method without the hot-isostatic-pressure (HIP) treatment. In the TSFZ growth, we added a small amount of B2O3 to the solvent for the stabilization of the growth and used high-pressure oxygen of ∼ 10 atm as a growth atmosphere for the suppression of oxygen defects. We have obtained single crystals with the size of the order of 2×2×3 mm3 and determined the composition to be La1.80Ba0.07Sr0.19Ca 0.97Cu1.97O6 by the inductively-coupled-plasma atomic-emission-spectrometry. The powder x-ray diffraction has revealed that the crystals are of the single phase of La2126 and include no impurity phases such as La2-xMxCuO4 (M: alkaline earth). The as-grown single crystals have shown superconductivity of the bulk with the transition temperature Tc = 20 K.

KW - Crystal growth

KW - Cuprate

KW - La2126

KW - Superconductivity

KW - Traveling-solvent floating-zone method

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BT - LOW TEMPERATURE PHYSICS

T2 - LOW TEMPERATURE PHYSICS: 24th International Conference on Low Temperature Physics - LT24

Y2 - 10 August 2006 through 17 October 2006

ER -

Crystal growth of superconducting La2126 without HIP treatment

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