Structural study on the (Hg,Tl)-Ba-(Ca,Y)-Cu-O system by XRD and TEM

X. J. Wu; A. Tokiwa-Yamamoto; T. Tatsuki; S. Adachi; K. Tanabe

doi:10.1016/S0921-4534(97)00540-6

Structural study on the (Hg,Tl)-Ba-(Ca,Y)-Cu-O system by XRD and TEM

X. J. Wu, A. Tokiwa-Yamamoto, T. Tatsuki, S. Adachi, K. Tanabe

Research output: Contribution to journal › Article › peer-review

Abstract

Superconducting (Hg,Tl)-O double layer compound samples were prepared by a high-pressure synthesis technique. Some samples have the composition of (Hg_0.7,Tl_0.3)₂Ba₂(Ca _x,Y_1-x)Cu₂O_8-2δ and are nearly single phase when x=0.1, 0.2, 0.4 and 0.6. The crystal structure of these samples was determined by X-ray Rietveld refinement. On the other hand, several new intergrowth phases were discovered in Y-free Hg(Tl)-Ba-Ca-Cu-O samples by TEM observation. Based on the TEM observation, symmetry and super-lattice parameters for the new phases were determined and structural models were proposed.

Original language	English
Pages (from-to)	889-890
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	282-287
Issue number	PART 2
DOIs	https://doi.org/10.1016/S0921-4534(97)00540-6
Publication status	Published - 1997 Aug
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

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title = "Structural study on the (Hg,Tl)-Ba-(Ca,Y)-Cu-O system by XRD and TEM",

abstract = "Superconducting (Hg,Tl)-O double layer compound samples were prepared by a high-pressure synthesis technique. Some samples have the composition of (Hg0.7,Tl0.3)2Ba2(Ca x,Y1-x)Cu2O8-2δ and are nearly single phase when x=0.1, 0.2, 0.4 and 0.6. The crystal structure of these samples was determined by X-ray Rietveld refinement. On the other hand, several new intergrowth phases were discovered in Y-free Hg(Tl)-Ba-Ca-Cu-O samples by TEM observation. Based on the TEM observation, symmetry and super-lattice parameters for the new phases were determined and structural models were proposed.",

author = "Wu, {X. J.} and A. Tokiwa-Yamamoto and T. Tatsuki and S. Adachi and K. Tanabe",

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T1 - Structural study on the (Hg,Tl)-Ba-(Ca,Y)-Cu-O system by XRD and TEM

AU - Wu, X. J.

AU - Tokiwa-Yamamoto, A.

AU - Tatsuki, T.

AU - Adachi, S.

AU - Tanabe, K.

PY - 1997/8

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AB - Superconducting (Hg,Tl)-O double layer compound samples were prepared by a high-pressure synthesis technique. Some samples have the composition of (Hg0.7,Tl0.3)2Ba2(Ca x,Y1-x)Cu2O8-2δ and are nearly single phase when x=0.1, 0.2, 0.4 and 0.6. The crystal structure of these samples was determined by X-ray Rietveld refinement. On the other hand, several new intergrowth phases were discovered in Y-free Hg(Tl)-Ba-Ca-Cu-O samples by TEM observation. Based on the TEM observation, symmetry and super-lattice parameters for the new phases were determined and structural models were proposed.

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