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Magnetic Collapse and Insulator-Metal Transitions in Some 3D Metal Oxides Under High Pressures

Published online by Cambridge University Press:  26 February 2011

Igor S. Lyubutin ,
Alexander G. Gavriliuk  and
Viktor Struzhkin
Igor S. Lyubutin
Affiliation:
lyubutin@ns.crys.ras.ru, Institute of Crystallography, Russian Academy of Sciences, Resonance Methods, Leninskii prospekt 59, Moscow, 119333, Russian Federation, +7(495)135-6250, +7(495) 135-1011
Alexander G. Gavriliuk
Affiliation:
gavriliuk@mail.ru, Institute for High Pressure Physics, Troitsk, Moscow region, 142190, Russian Federation
Viktor Struzhkin
Affiliation:
struzhkin@gl.ciw.edu, Carnegie Institution of Washington, Geophysical Laboratory, 5251 Broad Branch Road NW, Washington, DC, 20015, United States
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Abstract

In the systems with strong electron correlations, many theories predict the high-pressure-induced dielectric-metal transition, which is followed by collapse of localized magnetic moment and structural phase transition. In this report, summary results of many last experiments on the influence of high pressure on the magnetic and crystal structure as well on the electronic and transport properties of 3d metal oxides is presented. Along with X-ray diffraction, optical absorption, Raman scattering and electroresistivity measurements, several synchrotron radiation techniques have also been applied to perform the high-pressure experiments with compound iron oxides having different crystal structures.

Keywords

magnetic propertieselectronic structurephase transformation
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 987: Symposium PP – Materials Research at High Pressure , 2006 , 0987-PP05-05
Copyright
Copyright © Materials Research Society 2007

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References

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