Crystal structure of the (formula presented) superconductors near (formula presented)

Serena Margadonna; Kosmas Prassides; Ioannis Arvanitidis; Michael Pissas; Georgios Papavassiliou; Andrew N. Fitch

doi:10.1103/PhysRevB.66.014518

Crystal structure of the (formula presented) superconductors near (formula presented)

Serena Margadonna, Kosmas Prassides, Ioannis Arvanitidis, Michael Pissas, Georgios Papavassiliou, Andrew N. Fitch

Advanced Institute for Materials Research (AIMR)

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

3 Citations (Scopus)

Abstract

Precise structural information on the (formula presented) superconductors in the vicinity of (formula presented) is derived from high-resolution synchrotron x-ray powder diffraction measurements. We find that a hexagonal superstructure, accompanied by doubling of the c axis, ordering of Mg and Al in alternating layers, and a shift of the B layers towards Al by (formula presented) is formed. The unusually large width of the (formula presented) superlattice peak implies the presence of microstrain broadening, arising from anisotropic stacking of Al and Mg layers and/or structural modulations within the (formula presented) plane. The ordered phase survives only over a limited range of compositions away from the optimum (formula presented) doping level.

Original language	English
Pages (from-to)	1-5
Number of pages	5
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.66.014518
Publication status	Published - 2002

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Access to Document

10.1103/PhysRevB.66.014518

Fingerprint Dive into the research topics of 'Crystal structure of the (formula presented) superconductors near (formula presented)'. Together they form a unique fingerprint.

Cite this

Crystal structure of the (formula presented) superconductors near (formula presented). / Margadonna, Serena; Prassides, Kosmas; Arvanitidis, Ioannis; Pissas, Michael; Papavassiliou, Georgios; Fitch, Andrew N.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 1, 2002, p. 1-5.

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

@article{d2dca02dbf1b4c25a0792919d0b3430a,

title = "Crystal structure of the (formula presented) superconductors near (formula presented)",

abstract = "Precise structural information on the (formula presented) superconductors in the vicinity of (formula presented) is derived from high-resolution synchrotron x-ray powder diffraction measurements. We find that a hexagonal superstructure, accompanied by doubling of the c axis, ordering of Mg and Al in alternating layers, and a shift of the B layers towards Al by (formula presented) is formed. The unusually large width of the (formula presented) superlattice peak implies the presence of microstrain broadening, arising from anisotropic stacking of Al and Mg layers and/or structural modulations within the (formula presented) plane. The ordered phase survives only over a limited range of compositions away from the optimum (formula presented) doping level.",

author = "Serena Margadonna and Kosmas Prassides and Ioannis Arvanitidis and Michael Pissas and Georgios Papavassiliou and Fitch, {Andrew N.}",

year = "2002",

doi = "10.1103/PhysRevB.66.014518",

language = "English",

volume = "66",

pages = "1--5",

journal = "Physical Review B - Condensed Matter and Materials Physics",

issn = "0163-1829",

publisher = "American Institute of Physics Publising LLC",

number = "1",

}

TY - JOUR

T1 - Crystal structure of the (formula presented) superconductors near (formula presented)

AU - Margadonna, Serena

AU - Prassides, Kosmas

AU - Arvanitidis, Ioannis

AU - Pissas, Michael

AU - Papavassiliou, Georgios

AU - Fitch, Andrew N.

PY - 2002

Y1 - 2002

N2 - Precise structural information on the (formula presented) superconductors in the vicinity of (formula presented) is derived from high-resolution synchrotron x-ray powder diffraction measurements. We find that a hexagonal superstructure, accompanied by doubling of the c axis, ordering of Mg and Al in alternating layers, and a shift of the B layers towards Al by (formula presented) is formed. The unusually large width of the (formula presented) superlattice peak implies the presence of microstrain broadening, arising from anisotropic stacking of Al and Mg layers and/or structural modulations within the (formula presented) plane. The ordered phase survives only over a limited range of compositions away from the optimum (formula presented) doping level.

AB - Precise structural information on the (formula presented) superconductors in the vicinity of (formula presented) is derived from high-resolution synchrotron x-ray powder diffraction measurements. We find that a hexagonal superstructure, accompanied by doubling of the c axis, ordering of Mg and Al in alternating layers, and a shift of the B layers towards Al by (formula presented) is formed. The unusually large width of the (formula presented) superlattice peak implies the presence of microstrain broadening, arising from anisotropic stacking of Al and Mg layers and/or structural modulations within the (formula presented) plane. The ordered phase survives only over a limited range of compositions away from the optimum (formula presented) doping level.

UR - http://www.scopus.com/inward/record.url?scp=85038347198&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85038347198&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.66.014518

DO - 10.1103/PhysRevB.66.014518

M3 - Article

AN - SCOPUS:85038347198

VL - 66

SP - 1

EP - 5

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

SN - 0163-1829

IS - 1

ER -