Coherent domain growth under photo-excitation in a Prussian blue analogue

M. Hanawa; Y. Moritomo; A. Kuriki; J. Tateishi; K. Kato; M. Takata; M. Sakata

doi:10.1143/JPSJ.72.987

Coherent domain growth under photo-excitation in a Prussian blue analogue

M. Hanawa, Y. Moritomo, A. Kuriki, J. Tateishi, K. Kato, M. Takata, M. Sakata

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Abstract

We have investigated the structural properties of the photo-induced metastable phase of a Prussian blue analogue (Na_0.42Co[Fe(CN) ₆]_0.78·4.64H₂O), which shows the photo-magnetization phenomenon, as revealed by means of the high angle-resolved synchrotron-radiation X-ray powder diffraction technique. We have found that (1) the structural domain size is larger than the quenched high-temperature phase and (2) the lattice constant a (= 10.287(1) Å) is larger than that of the quenched phase (a = 10.187(3) Å). These observations indicate that photo-excitation coherently increases the size of the photo-induced metastable region even at low temperature (91 K ≪ T_c).

Original language	English
Pages (from-to)	987-990
Number of pages	4
Journal	Journal of the Physical Society of Japan
Volume	72
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.72.987
Publication status	Published - 2003 May

Keywords

Crystal growth
Crystal structure
Metastable phase
Photo-induced magnetization
Powder X-ray diffraction
Structural domain
Synchrotron radiation

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10.1143/JPSJ.72.987

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title = "Coherent domain growth under photo-excitation in a Prussian blue analogue",

abstract = "We have investigated the structural properties of the photo-induced metastable phase of a Prussian blue analogue (Na0.42Co[Fe(CN) 6]0.78·4.64H2O), which shows the photo-magnetization phenomenon, as revealed by means of the high angle-resolved synchrotron-radiation X-ray powder diffraction technique. We have found that (1) the structural domain size is larger than the quenched high-temperature phase and (2) the lattice constant a (= 10.287(1) {\AA}) is larger than that of the quenched phase (a = 10.187(3) {\AA}). These observations indicate that photo-excitation coherently increases the size of the photo-induced metastable region even at low temperature (91 K ≪ Tc).",

keywords = "Crystal growth, Crystal structure, Metastable phase, Photo-induced magnetization, Powder X-ray diffraction, Structural domain, Synchrotron radiation",

author = "M. Hanawa and Y. Moritomo and A. Kuriki and J. Tateishi and K. Kato and M. Takata and M. Sakata",

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T1 - Coherent domain growth under photo-excitation in a Prussian blue analogue

AU - Hanawa, M.

AU - Moritomo, Y.

AU - Kuriki, A.

AU - Tateishi, J.

AU - Kato, K.

AU - Takata, M.

AU - Sakata, M.

PY - 2003/5

Y1 - 2003/5

N2 - We have investigated the structural properties of the photo-induced metastable phase of a Prussian blue analogue (Na0.42Co[Fe(CN) 6]0.78·4.64H2O), which shows the photo-magnetization phenomenon, as revealed by means of the high angle-resolved synchrotron-radiation X-ray powder diffraction technique. We have found that (1) the structural domain size is larger than the quenched high-temperature phase and (2) the lattice constant a (= 10.287(1) Å) is larger than that of the quenched phase (a = 10.187(3) Å). These observations indicate that photo-excitation coherently increases the size of the photo-induced metastable region even at low temperature (91 K ≪ Tc).

AB - We have investigated the structural properties of the photo-induced metastable phase of a Prussian blue analogue (Na0.42Co[Fe(CN) 6]0.78·4.64H2O), which shows the photo-magnetization phenomenon, as revealed by means of the high angle-resolved synchrotron-radiation X-ray powder diffraction technique. We have found that (1) the structural domain size is larger than the quenched high-temperature phase and (2) the lattice constant a (= 10.287(1) Å) is larger than that of the quenched phase (a = 10.187(3) Å). These observations indicate that photo-excitation coherently increases the size of the photo-induced metastable region even at low temperature (91 K ≪ Tc).

KW - Crystal growth

KW - Crystal structure

KW - Metastable phase

KW - Photo-induced magnetization

KW - Powder X-ray diffraction

KW - Structural domain

KW - Synchrotron radiation

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JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

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Coherent domain growth under photo-excitation in a Prussian blue analogue

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Keywords

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