Phase Diagram of Spin States and Magnetic Interactions in Isotope Substituted (Pr,Eu)0.7Ca0.3CoO3

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

Publikováno v: Solid State Phenomena. :465-468

The magnetic/spin-state phase diagram of the (Pr1-yEuy)0.7Ca0.3CoO3 series was obtained on the basis of measurements of the specific heat, thermal expansion, magnetization and resistivity. The phase diagram reveals three different states depending on

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::71c30723c99db85dc14a9ece6a37469e
https://doi.org/10.4028/www.scientific.net/ssp.168-169.465

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

Dependence of the magnetic ordering temperature on hydorstatic pressure for the ternary intermetallic compounds GdAgMg, GdAuMg, EuAgMg, and EuAuMg

Autor: James S. Schilling, N. J. Hillier, J. A. Mydosh, Thomas Lorenz, Thomas Fickenscher, Hunter Banks, Rainer Pöttgen, J. Rohrkamp

Publikováno v: Physical Review B, 81(21), 212403

A He-gas compressor system is used to determine the dependence of the Curie temperature ${T}_{C}$ of polycrystalline GdAgMg, EuAgMg, and EuAuMg and the N\'eel temperature ${T}_{N}$ of GdAuMg on hydrostatic pressure to 0.8 GPa. The $\ensuremath{\parti

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dfc9a39a3e7db0d433f275d8a7f737db
https://hdl.handle.net/1887/51744

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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