Crystallographic Study in the Nd2CuO4-Sr2CuO3 System

Takahashi, Koh; Okai, Bin; Kosuge, Michikazu; Ohta, Mitsuo

doi:10.1143/jjap.27.l1374

Cited by 25 publications

(6 citation statements)

References 6 publications

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“…Doping these parent compounds with strontium or cerium respectively introduces holes or electrons in the CuO 2 sheets to make them superconducting. The solid solutions (La~_xSrx)2CuO4.y have been prepared over a wide composition range (0 < x < 0.67)(4) while (Ndl.xSrx)2CuO4_y only exists over a rather more limited composition range (0.55 < x<0.75) (8); however both are isostructural with K2NiF 4.…”

Section: Introductionmentioning

confidence: 99%

Structure and oxygen stoichiometry in complex neodymium strontium cobalt copper oxides: [NdSrCo1−xCuxO4−y]

Grandjean

Weller

1993

Materials Research Bulletin

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Section: Introductionmentioning

confidence: 99%

Structure and oxygen stoichiometry in complex neodymium strontium cobalt copper oxides: [NdSrCo1−xCuxO4−y]

Grandjean

Weller

1993

Materials Research Bulletin

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“…Naturally, Sr 2 CuO 3 , as a typical representative of one-dimensional Mott insulator of cuprates, have been widely investigated for its active role in the preparation of superconductors and unusual nonlinear response 4–8 . In more general terms, the structure of Sr 2 CuO 3 is similar to that of the two-dimensional compound La 2 CuO 4 , which only lacks oxygen atoms in Cu-O chains between the Cu ions in the c-axis direction, therefore, Sr 2 CuO 3 is a favorable precursor for the synthesis of Cu-O composites 9–12 . Previous studies focus much on searching for the analogs of Sr 2 CuO 3 or introducing other metallic elements to enhance the superconductivity of the final product.…”

Section: Introductionmentioning

confidence: 96%

Moderate fabrication and characterization of the microcrystalline Sr2CuO3 glass films with effective nonlinearities

Jiang

et al. 2018

Sci Rep

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Since nonlinear optical materials used in the ultrafast all-optical switching is an important part for the modern optical technology, cuprates have been widely investigated for their specific Cu-O chain structure and intriguing optical properties. We present a new preparation method of microcrystalline Sr2CuO3 glass films on glass substrates combining spin-coating and co-sintering techniques. Then, the as-prepared samples were polished for different times to obtain microcrystalline Sr2CuO3 glass films with varying thickness. The influence of polishing time on the structure, the valence state and the nonlinear optical response were discussed, respectively. The purity of the Sr2CuO3 phase, surface morphology and the chemical composites of these synthesized glass films were given with scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), X-ray powder diffraction (XRD) and X-ray photoelectron spectroscopy (XPS). Importantly, optical absorption spectroscopy and Z-scan technique were used to measure linear absorption and third-order optical nonlinearity of the films. The experiments showed that third-order nonlinear susceptibility of the 140 min polished film sample with a thickness of 18 μm was up to 1.23 × 10−12 esu, indicating its potential application in the nonlinear field.

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“…The shortened c axis is associated with oxygen loss from the Cu-02 plane, as in [38], the structure transforms from S to T/0 to T' with decreasing x. For our La2CuOx system, the phase transformation is from S to T' and then to T; the reason for the different transition order in the two systems is not clear, although in our case the excess oxygens in the T' phase appar ently stabilize this structure.…”

Section: Discussionmentioning

confidence: 61%

“…The structure of FBagCïigOy [37] contains both CU-O2 plane and Cu-0 chain elements. Nonsuperconducting [38] Sr2GuO'^ [39] (S-phase) has isolated Cu-O-^ chains running along the a axis of the orthorhombic structure. The T/0, T', and S structures are shown in Figure 2 [4].…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and magnetic properties of novel Ln[subscript 2-x]MxCuO[subscript 4+y] compositions (Ln = La,Pr,Nd,Sm,Eu,Gd; M = Ca,Sr,Ba; 0<=x<=0.2; -0.5<=y<=0.5)

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Synthesis and magnetic properties of novel Ln[subscript 2-x]MxCuO[subscript 4+y] compositions (Ln = La,Pr,Nd,Sm,Eu,Gd; M = Ca,Sr,Ba; 0<=x<=0.2; -0.5<=y<=0.5) " (1992). Retrospective Theses and Dissertations. 9824. https://lib.dr.iastate.edu/rtd/9824 INFORMATION TO USERSThis manuscript has been reproduced from the microfilm master. UMI films the text directly from the original or copy submitted. Thus, some thesis and dissertation copies are in typewriter face, while others may be from any type of computer printer.The quality of this reproduction is dependent upon the qualify of the copy submitted. Broken or indistinct print, colored or poor quality illustrations and photographs, print bleedthrough, substandard margins, and improper alignment can adversely affect reproduction.In the unlikely event that the author did not send UMI a complete manuscript and there are missing pages, these will be noted. Also, if unauthorized copyright material had to be removed, a note will indicate the deletion. (e.g., maps, drawings, charts) are reproduced by sectioning the original, beginning at the upper left-hand corner and continuing from left to right m equal sections with small overlaps. Each original is also photographed in one exposure and is included in reduced form at the back of the book. Synthesis and magnetic properties of novel Ln2-.xMxCuO/!^^y compositions {Ln -La^ Pr, Nd, Sm, Eu, Gd\ M = Ca, Sr, Ba\ 0 < x < 0,2; -0.5 < y < 0.5) Oversize materials

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Crystallographic Study in the Nd₂CuO₄-Sr₂CuO₃ System

Cited by 25 publications

References 6 publications

Structure and oxygen stoichiometry in complex neodymium strontium cobalt copper oxides: [NdSrCo1−xCuxO4−y]

Structure and oxygen stoichiometry in complex neodymium strontium cobalt copper oxides: [NdSrCo1−xCuxO4−y]

Moderate fabrication and characterization of the microcrystalline Sr2CuO3 glass films with effective nonlinearities

Synthesis and magnetic properties of novel Ln[subscript 2-x]MxCuO[subscript 4+y] compositions (Ln = La,Pr,Nd,Sm,Eu,Gd; M = Ca,Sr,Ba; 0<=x<=0.2; -0.5<=y<=0.5)

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