Synthesis and Properties of SmO0.5F0.5BiS2 and Enhancement in Tc in La1–ySmyO0.5F0.5BiS2

Thakur, Gohil S.; Selvan, G.; Haque, Zeba; Gupta, L. C.; Samal, Saroj L.; Arumugam, S.; Ganguli, Ashok K.

doi:10.1021/ic5023938

Cited by 44 publications

(54 citation statements)

References 35 publications

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“…Therefore, the shrinkage of the BiS 2 layer should be related to the emergence of bulk superconductivity in REO 0.5 F 0.5 BiS 2 . These results seem to be consistent with the external pressure effects, while the crystal structure remains tetragonal up to RE = Sm [23,24]. Then, please note that the filamentary (non-bulk) superconductivity observed in RE = La is suppressed by Ce substitution.…”

Section: Chemical Pressure Effectsupporting

confidence: 78%

“…In order to induce bulk superconductivity in LaO 0.5 F 0.5 BiS 2 , the chemical pressure effect is also effective. By replacing La with smaller rare-earth ions, Ce, Pr, Nd, or Sm, bulk superconductivity can be induced [19][20][21][22][23][24]. Namely, REO 1−x F x BiS 2 with RE = La, Ce, Pr, Nd, or Sm is basically superconductive, and has a crystal structure as shown in Figure 1b.…”

Section: -Type Bis 2 -Based Superconductorsmentioning

confidence: 99%

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Discovery of BiS2-Based Superconductor and Material Design Concept

Mizuguchi

2017

Condensed Matter

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Abstract:In 2012, we discovered new layered superconductors whose superconducting states emerge in the BiS 2 layers. Since their crystal structure, composed of alternate stacks of BiS 2 conduction layers and electrically insulating (blocking) layers, is similar to those of cuprate and Fe-based superconductors, many researchers have explored new BiS 2 -based superconductors and have studied the physical and chemical properties of the BiS 2 -based superconductors. In this paper, we present the histories of the discovery of the first BiS 2 -based superconductor, Bi 4 O 4 S 3 , and the second one, LaO 1−x F x BiS 2 . The structural variation of the BiS 2 -based superconductor family is briefly introduced. Then, we show the material design concept for the emergence of bulk superconductivity in BiS 2 -based compounds. At the end, a possible strategy for the enhancement of the transition temperature in the BiS 2 -based superconductors is proposed. . Those layered superconductors have a layered structure composed of alternate stacks of conducting (superconducting) and insulating (blocking) layers. The FeAs layer and CuO 2 plane are the essential structures for the emergence of superconductivity in Fe-based and cuprate superconductors, respectively. Namely, by utilizing the structural flexibility, new superconductors with various stacking structures could be designed by changing the blocking layer and/or the thickness of the superconducting planes. Therefore, I aimed to discover a new layered superconductor with a new type of superconducting layer other than the FeAs layer and CuO 2 plane.To discover new layered superconductors, experience in the material design of the Fe-based superconductor family is very useful. A typical crystal structure of the Fe-based superconductor is the ZrSiCuAs-type (P4/nmm) structure, for example LaOFeAs [1]. As shown in Figure 1a, the crystal structure of LaOFeAs is composed of the FeAs superconducting layer and the LaO blocking layer. Among layered compounds, the ZrSiCuAs-type structure is one of the typical structures. For example, BiOCuSe, whose structure is composed of a CuSe conducting layer and a BiO blocking layer, is a famous thermoelectric material [4]. When substituting the CuSe layer of BiOCuSe with a CuS layer, we obtain BiOCuS with the ZrSiCuAs-type structure.

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Section: Chemical Pressure Effectsupporting

confidence: 78%

Section: -Type Bis 2 -Based Superconductorsmentioning

confidence: 99%

Discovery of BiS2-Based Superconductor and Material Design Concept

Mizuguchi

2017

Condensed Matter

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“…1) become superconductors after the doping of the conduction layers with an electron carrier [15][16][17][18][19][20][21][22][23][24][25][26][27][28]. On the other hand, superconductivity has not been observed after doping with a hole carrier [62].…”

Section: Emergence Of Superconductivity By Electron Dopingmentioning

confidence: 99%

“…Superconductors with a layered structure, such as cuprates and iron-based superconductors, are attractive materials because they sometimes exhibit a high superconducting transition temperature (Tc) and/or an unconventional superconducting mechanism [1][2][3][4][5][6][7][8][9][10][11][12][13]. Further, BiS 2 -based superconductors have a layered structure [14][15][16][17][18][19][20][21][22][23][24][25][26][27][28]. Therefore, a number of researchers have investigated these materials.…”

Section: Introductionmentioning

confidence: 99%

“…This suggests it should be possible to turn layered compounds with layers of BiS 2 into superconductors by doping them with an electron carrier. The other parent materials are LnOBiS 2 (Ln = La, Ce, Pr, Nd, Sm, Yb, and Bi), which have a crystal structure composed of alternating stacks of BiS 2 conduction layers and LnO-type block layers [15][16][17][18][19][20][21][22][23].…”

Section: Introductionmentioning

confidence: 99%

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Evolution of superconductivity and magnetism in BiS2-based layered compounds

Demura¹

2016

Novel Superconducting Materials

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BiS 2 -based compounds constitute a new family of layered superconductors. In this article, several experimental findings on the superconductivity and related properties of the BiS 2 family are reviewed. In particular, the focus is on the conditions required for the emergence of superconductivity and higher superconducting transition temperature in the BiS 2 family: it is shown that optimizing the electron doping and crystal structure are important. Further, a few notable characteristics such as the coexistence of superconductivity and magnetism as well as the relation between the superconductivity and chargedensity-wave instability are introduced in brief.

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Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃ Layer

Yang,

Fan,

Liu

et al. 2023

Advanced Science

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The BiS2‐based layered superconductors with structures similar to those of cuprates and iron‐based superconductors have stimulated much research interest. Here, a new quaternary compound is reported, Bi5O4S3Cl, which crystalizes in a tetragonal structure with P4/mmm (No. 123) space group having alternately stacking unique BiS3 layers and Bi2O2 layers along the c‐axis with a Cl atom located at the center of the unit cell. A superconducting transition above 3 K is observed for both electrical transport and magnetic measurements. Hall resistivity measurements show its multiband character with a conduction dominated by electron‐like charge carriers. The first‐principles calculations exhibit that the semiconducting parent phase Bi5O4S3Cl becomes metallic when sulfur vacancies are introduced, which hints the origin of superconductivity in Bi5O4S3Cl. The findings will inspire the exploration of new BiS‐based superconductors.

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Synthesis and Properties of SmO_0.5F_0.5BiS₂ and Enhancement in T_c in La_1–ySm_yO_0.5F_0.5BiS₂

Abstract: Crystal structure and properties of a new member of oxy-bismuth-sulfide family SmO 0.5 F 0.

Cited by 44 publications

References 35 publications

Discovery of BiS2-Based Superconductor and Material Design Concept

Discovery of BiS2-Based Superconductor and Material Design Concept

Evolution of superconductivity and magnetism in BiS2-based layered compounds

Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃ Layer

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Synthesis and Properties of SmO0.5F0.5BiS2 and Enhancement in Tc in La1–ySmyO0.5F0.5BiS2

Abstract: Crystal structure and properties of a new member of oxy-bismuth-sulfide family SmO 0.5 F 0.

Cited by 44 publications

References 35 publications

Discovery of BiS2-Based Superconductor and Material Design Concept

Discovery of BiS2-Based Superconductor and Material Design Concept

Evolution of superconductivity and magnetism in BiS2-based layered compounds

Discovery of a Superconductor Bi5O4S3Cl Containing the Unique BiS3 Layer

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Synthesis and Properties of SmO_0.5F_0.5BiS₂ and Enhancement in T_c in La_1–ySm_yO_0.5F_0.5BiS₂

Discovery of a Superconductor Bi₅O₄S₃Cl Containing the Unique BiS₃ Layer