Manipulation of mesoscopic phase separation by X-ray illumination

M. Fratini; G. Campi; L. Barba; Y. Busby; M. Filippi; W. Prellier; V. Palmisano; L. Simonelli; N. L. Saini; A. Bianconi

doi:10.1007/s10948-007-0269-9

Manipulation of mesoscopic phase separation by X-ray illumination

M. Fratini, G. Campi, L. Barba, Y. Busby, M. Filippi, W. Prellier, V. Palmisano, L. Simonelli, N. L. Saini, A. Bianconi

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

Abstract

High resolution synchrotron X-ray diffraction is used to study the dynamics of oxygen ordering in a La ₂CuO _4.08 single crystal as a function of the temperature and of the photon flux. We have observed the occurrence of a phase separation between disordered and 3D long-range ordered domains of interstitial oxygen atoms (the latter being commensurate with the lattice). We are able to study and control the phase separation by irradiating the sample while varying the temperature in a range between 350 K and 250 K. These results shed new light on the oxygen ordering in cuprates; in addition, we show that in such systems it is possible to manipulate and to control structural inhomogeneities at the atomic scale using X-ray diffraction.

Original language	English
Pages (from-to)	551-554
Number of pages	4
Journal	Journal of Superconductivity and Novel Magnetism
Volume	20
Issue number	7-8
DOIs	https://doi.org/10.1007/s10948-007-0269-9
Publication status	Published - Nov 2007
Externally published	Yes

Keywords

La CuO
Oxygen ordering
X-ray diffraction

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10.1007/s10948-007-0269-9

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title = "Manipulation of mesoscopic phase separation by X-ray illumination",

abstract = "High resolution synchrotron X-ray diffraction is used to study the dynamics of oxygen ordering in a La 2CuO 4.08 single crystal as a function of the temperature and of the photon flux. We have observed the occurrence of a phase separation between disordered and 3D long-range ordered domains of interstitial oxygen atoms (the latter being commensurate with the lattice). We are able to study and control the phase separation by irradiating the sample while varying the temperature in a range between 350 K and 250 K. These results shed new light on the oxygen ordering in cuprates; in addition, we show that in such systems it is possible to manipulate and to control structural inhomogeneities at the atomic scale using X-ray diffraction.",

keywords = "La CuO, Oxygen ordering, X-ray diffraction",

author = "M. Fratini and G. Campi and L. Barba and Y. Busby and M. Filippi and W. Prellier and V. Palmisano and L. Simonelli and Saini, {N. L.} and A. Bianconi",

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language = "English",

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TY - JOUR

T1 - Manipulation of mesoscopic phase separation by X-ray illumination

AU - Fratini, M.

AU - Campi, G.

AU - Barba, L.

AU - Busby, Y.

AU - Filippi, M.

AU - Prellier, W.

AU - Palmisano, V.

AU - Simonelli, L.

AU - Saini, N. L.

AU - Bianconi, A.

PY - 2007/11

Y1 - 2007/11

N2 - High resolution synchrotron X-ray diffraction is used to study the dynamics of oxygen ordering in a La 2CuO 4.08 single crystal as a function of the temperature and of the photon flux. We have observed the occurrence of a phase separation between disordered and 3D long-range ordered domains of interstitial oxygen atoms (the latter being commensurate with the lattice). We are able to study and control the phase separation by irradiating the sample while varying the temperature in a range between 350 K and 250 K. These results shed new light on the oxygen ordering in cuprates; in addition, we show that in such systems it is possible to manipulate and to control structural inhomogeneities at the atomic scale using X-ray diffraction.

AB - High resolution synchrotron X-ray diffraction is used to study the dynamics of oxygen ordering in a La 2CuO 4.08 single crystal as a function of the temperature and of the photon flux. We have observed the occurrence of a phase separation between disordered and 3D long-range ordered domains of interstitial oxygen atoms (the latter being commensurate with the lattice). We are able to study and control the phase separation by irradiating the sample while varying the temperature in a range between 350 K and 250 K. These results shed new light on the oxygen ordering in cuprates; in addition, we show that in such systems it is possible to manipulate and to control structural inhomogeneities at the atomic scale using X-ray diffraction.

KW - La CuO

KW - Oxygen ordering

KW - X-ray diffraction

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JO - Journal of Superconductivity and Novel Magnetism

JF - Journal of Superconductivity and Novel Magnetism

IS - 7-8

ER -

Manipulation of mesoscopic phase separation by X-ray illumination

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