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Dielectric properties and magnetostriction of the collinear multiferroic spinel CdV2O4

Autor: G. Giovannetti (1,2), A. Stroppa (3), S. Picozzi (1), D. Baldomir (4), V. Pardo (4), S. Blanco-Canosa (5), F. Rivadulla (6), S. Jodlauk (7), D. Niermann (8), J. Rohrkamp (8), T. Lorenz (8), S. Streltsov (8), D. I. Khomskii (8), J. Hemberger (8)

Publikováno v: Physical review. B, Condensed matter and materials physics 83 (2011): 060402(R). doi:10.1103/PhysRevB.83.060402
info:cnr-pdr/source/autori:G. Giovannetti (1,2); A. Stroppa (3); S. Picozzi (1); D. Baldomir (4); V. Pardo (4); S. Blanco-Canosa (5); F. Rivadulla (6); S. Jodlauk (7); D. Niermann (8); J. Rohrkamp (8); T. Lorenz (8); S. Streltsov (8); D. I. Khomskii (8); J. Hemberger (8)/titolo:Dielectric properties and magnetostriction of the collinear multiferroic spinel CdV2O4/doi:10.1103%2FPhysRevB.83.060402/rivista:Physical review. B, Condensed matter and materials physics/anno:2011/pagina_da:060402(R)/pagina_a:/intervallo_pagine:060402(R)/volume:83

By studying the dielectric properties of the geometrically frustrated spinel CdV2O4, we observe ferroelectricity developing at the transition into the collinear antiferromagnetic ground state. In this multiferroic spinel, ferroelectricity is driven b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=cnr_________::ba65cfe142fc2025153ced4bbd83adf3
http://link.aps.org/doi/10.1103/PhysRevB.83.060402

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Phase diagram and isotope effect in(Pr1−yEuy)0.7Ca0.3CoO3cobaltites exhibiting spin-state transitions

Autor: A.V. Kalinov, A. R. Kaul, L. M. Fisher, N. A. Babushkina, D. I. Khomskii, S. Jodlauk, Alexander N. Taldenkov, O. Yu. Gorbenko, K. I. Kugel, J. Rohrkamp, Thomas Lorenz, A. A. Kamenev, O. Heyer, T. G. Kuzmova

Publikováno v: Physical Review B. 81

We present the study of magnetization, thermal expansion, specific heat, resistivity, and ac susceptibility of ${({\text{Pr}}_{1\ensuremath{-}y}{\text{Eu}}_{y})}_{0.7}{\text{Ca}}_{0.3}{\text{CoO}}_{3}$ cobaltites. The measurements were performed on c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a7ce0dd5c7b8031136dfc2bb373aea62
https://doi.org/10.1103/physrevb.81.134427

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Pyroxenes: A new class of multiferroics

Autor: Ladislav Bohatý, Dominik C. Hezel, Petra Becker, J. A. Mydosh, D. I. Khomskii, S. Jodlauk, Thomas Lorenz, Sergey V. Streltsov

Pyroxenes with the general formula $AM$Si$_2$O$_6$ ($A$ = mono- or divalent metal, $M$ = di- or trivalent metal) are shown to be a new class of multiferroic materials. In particular, we have found so far that NaFeSi$_2$O$_6$ becomes ferroelectric in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::34adddf3d5c87ea208ef10b8b250f28e

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A New Multiferroic Material: MnWO4

Autor: Petra Becker, N. Hollmann, L. Bohaty, Daniel I. Khomskii, Thomas Lorenz, I. Klassen, J. A. Mydosh, S. Jodlauk, O. Heyer

We report the multiferroic behaviour of MnWO$_4$, a magnetic oxide with monoclinic crystal structure and spiral long-range magnetic order. Based upon recent theoretical predictions MnWO$_4$ should exhibit ferroelectric polarization coexisting with th

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1fd9254635d4bcd2a688e507dacde08b

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Spin-state transition and metal-insulator transition inLa1−xEuxCoO3

Autor: H. Kierspel, Markus Kriener, J. Baier, C. Zobel, A. Reichl, S. Jodlauk, A. Freimuth, Thomas Lorenz

Publikováno v: Physical Review B. 71

We present a study of the structure, the electric resistivity, the magnetic susceptibility, and the thermal expansion of ${\mathrm{La}}_{1\ensuremath{-}x}{\mathrm{Eu}}_{x}\mathrm{Co}{\mathrm{O}}_{3}$. $\mathrm{La}\mathrm{Co}{\mathrm{O}}_{3}$ shows a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a5720f0fcd85200a7bfad9870d9007a
https://doi.org/10.1103/physrevb.71.014443

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Magnetoresistance, specific heat and magnetocaloric effect of equiatomic rare-earth transition-metal magnesium compounds

Autor: H. Hartmann, I. Klassen, S. Jodlauk, Thomas Fickenscher, K. Kordonis, Thomas Lorenz, K. Berggold, R. Poettgen, A. Freimuth

We present a study of the magnetoresistance, the specific heat and the magnetocaloric effect of equiatomic $RET$Mg intermetallics with $RE = {\rm La}$, Eu, Gd, Yb and $T = {\rm Ag}$, Au and of GdAuIn. Depending on the composition these compounds are

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::222c395f32469e5f87e37cbaf4a4712e

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Thermal expansion of the magnetically ordering intermetallics RTMg (R = Eu, Gd and T = Ag, Au)

Autor: Thomas Lorenz, Thomas Fickenscher, J. Rohrkamp, H. Hartmann, O. Heyer, Rainer Pöttgen, J. A. Mydosh, S. Jodlauk

Publikováno v: Journal of Physics: Condensed Matter. 19:486204

We report measurements of the thermal expansion for two Eu$^{+2}$- and two Gd$^{+3}$-based intermetallics which exhibit ferro- or antiferromagnetic phase transitions. These materials show sharp positive (EuAgMg and GdAuMg) and negative (EuAuMg and Gd

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::28eb683a24521743ff581612136b3f16
https://doi.org/10.1088/0953-8984/19/48/486204

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