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Pis'ma v Zh. Èksper. Teoret. Fiz., 2003, Volume 77, Issue 11, Pages 747–752 (Mi jetpl2834)  

This article is cited in 18 scientific papers (total in 18 papers)

Electronic and structural transitions in NdFeO$_3$ orthoferrite under high pressures

A. G. Gavriliuka, I. A. Trojana, R. Boehlerb, M. I. Eremetsb, I. S. Lyubutinc, N. R. Serebryanayad

a Institute for High Pressure Physics, Russian Academy of Sciences
b Max Planck Institute for Chemistry, Mainz
c Institute of Cristallography Russian Academy of Sciences, Moscow
d Technological Institute for Superhard and Novel Carbon Materials, Troitsk, Moscow

Abstract: The effect of high pressure up to 65 GPa on the crystal structure and optical absorption spectra of NdFeO$_3$ orthoferrite single crystals is studied in diamond anvil cells. At $P\sim37.5 $GPa, an electronic transition at which the optical absorption edge jumps from $\sim2.2$ to $\sim0.75 $ eV is observed. The equation of state $V(P)$ is studied on the basis of the $X$-ray diffraction data obtained under pressure. This study reveals a first-order structural phase transition at $P\sim37 $GPa with a jump of $\sim4%$ in the unit cell volume. It is shown that the phase transition observed in rare-earth orthoferrites at 30-40 GPa is a transition of the insulator-to-semiconductor type.

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English version:
Journal of Experimental and Theoretical Physics Letters, 2003, 77:11, 619–624

PACS: 61.50.K, 75.30.Et, 75.50.-y
Received: 05.05.2003

Citation: A. G. Gavriliuk, I. A. Trojan, R. Boehler, M. I. Eremets, I. S. Lyubutin, N. R. Serebryanaya, “Electronic and structural transitions in NdFeO$_3$ orthoferrite under high pressures”, Pis'ma v Zh. Èksper. Teoret. Fiz., 77:11 (2003), 747–752; JETP Letters, 77:11 (2003), 619–624

Citation in format AMSBIB
\by A.~G.~Gavriliuk, I.~A.~Trojan, R.~Boehler, M.~I.~Eremets, I.~S.~Lyubutin, N.~R.~Serebryanaya
\paper Electronic and structural transitions in NdFeO$_3$ orthoferrite under high pressures
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2003
\vol 77
\issue 11
\pages 747--752
\jour JETP Letters
\yr 2003
\vol 77
\issue 11
\pages 619--624

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    8. Friedrich A. Winkler B. Morgenroth W. Ruiz-Fuertes J. Koch-Mueller M. Rhede D. Milman V., Phys. Rev. B, 90:9 (2014), 094105  crossref  isi  elib  scopus
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