High-resolution synchrotron x-ray study of the structure of La1.8Ba0.2CuO4-y

S. C. Moss; K. Forster; J. D. Axe; H. You; D. Hohlwein; D. E. Cox; P. H. Hor; R. L. Meng; C. W. Chu

doi:10.1103/PhysRevB.35.7195

High-resolution synchrotron x-ray study of the structure of La1.8Ba0.2CuO4-y

S. C. Moss
, K. Forster
, J. D. Axe
, H. You
, D. Hohlwein
, D. E. Cox
, P. H. Hor
, R. L. Meng
, C. W. Chu

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44 Citations (Scopus)

Abstract

X-ray diffraction of La1.8Ba0.2CuO4-y reveals two macroscopically segregated tetragonal (K2NiF4-type) phases of nearly identical lattice parameter. Many peaks show additional broadening upon cooling. This broadening is consistent with a spontaneous monoclinic distortion, with an onset temperature of 150 K, and is possibly relevant to the superconducting properties. Small single crystals of 70 m diameter within the powder aggregate are also studied and show a similar two-phase constituency and a resolvable peak splitting at low temperature.

Original language	English
Pages (from-to)	7195-7198
Number of pages	4
Journal	Physical Review B
Volume	35
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.35.7195
Publication status	Published - 1987

All Science Journal Classification (ASJC) codes

Condensed Matter Physics

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10.1103/PhysRevB.35.7195

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title = "High-resolution synchrotron x-ray study of the structure of La1.8Ba0.2CuO4-y",

abstract = "X-ray diffraction of La1.8Ba0.2CuO4-y reveals two macroscopically segregated tetragonal (K2NiF4-type) phases of nearly identical lattice parameter. Many peaks show additional broadening upon cooling. This broadening is consistent with a spontaneous monoclinic distortion, with an onset temperature of 150 K, and is possibly relevant to the superconducting properties. Small single crystals of 70 m diameter within the powder aggregate are also studied and show a similar two-phase constituency and a resolvable peak splitting at low temperature.",

author = "Moss, \{S. C.\} and K. Forster and Axe, \{J. D.\} and H. You and D. Hohlwein and Cox, \{D. E.\} and Hor, \{P. H.\} and Meng, \{R. L.\} and Chu, \{C. W.\}",

year = "1987",

doi = "10.1103/PhysRevB.35.7195",

language = "English",

volume = "35",

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journal = "Physical Review B",

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T1 - High-resolution synchrotron x-ray study of the structure of La1.8Ba0.2CuO4-y

AU - Moss, S. C.

AU - Forster, K.

AU - Axe, J. D.

AU - You, H.

AU - Hohlwein, D.

AU - Cox, D. E.

AU - Hor, P. H.

AU - Meng, R. L.

AU - Chu, C. W.

PY - 1987

Y1 - 1987

N2 - X-ray diffraction of La1.8Ba0.2CuO4-y reveals two macroscopically segregated tetragonal (K2NiF4-type) phases of nearly identical lattice parameter. Many peaks show additional broadening upon cooling. This broadening is consistent with a spontaneous monoclinic distortion, with an onset temperature of 150 K, and is possibly relevant to the superconducting properties. Small single crystals of 70 m diameter within the powder aggregate are also studied and show a similar two-phase constituency and a resolvable peak splitting at low temperature.

AB - X-ray diffraction of La1.8Ba0.2CuO4-y reveals two macroscopically segregated tetragonal (K2NiF4-type) phases of nearly identical lattice parameter. Many peaks show additional broadening upon cooling. This broadening is consistent with a spontaneous monoclinic distortion, with an onset temperature of 150 K, and is possibly relevant to the superconducting properties. Small single crystals of 70 m diameter within the powder aggregate are also studied and show a similar two-phase constituency and a resolvable peak splitting at low temperature.

UR - https://www.scopus.com/pages/publications/23544453477

UR - https://www.scopus.com/pages/publications/23544453477#tab=citedBy

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JO - Physical Review B

JF - Physical Review B

IS - 13

ER -

High-resolution synchrotron x-ray study of the structure of La1.8Ba0.2CuO4-y

Abstract

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