Ferroelectricity and giant magnetocapacitance in perovskite rare-earth manganites

T Goto, T Kimura, G Lawes, AP Ramirez, Y Tokura - Physical review letters, 2004 - APS
The relationships among magnetism, lattice modulation, and dielectric properties have
been<? format?> investigated for R MnO 3 (R= Eu, Gd, Tb, and Dy). These compounds …

Classification of P, N-binucleating ligands for hetero-and homobimetallic complexes

S Maggini - Coordination Chemistry Reviews, 2009 - Elsevier
This review focuses on P, N-ligands capable of establishing binucleating interactions and on
the resulting bimetallic complexes. The work is grouped by the type of P, N-binucleating …

[图书][B] Advances in heterocyclic chemistry

AR Katritzky - 1997 - books.google.com
Established in 1960, Advances in Heterocyclic Chemistry is the definitive serial in the area--
one of great importance to organic chemists, polymer chemists, and many biological …

Dual nature of improper ferroelectricity in a magnetoelectric multiferroic

S Picozzi, K Yamauchi, B Sanyal, IA Sergienko… - Physical Review Letters, 2007 - APS
Using first-principles calculations, we study the microscopic origin of ferroelectricity (FE)
induced by magnetic order in the orthorhombic HoMnO 3. We obtain the largest ferroelectric …

Distortion-dependent Raman spectra and mode mixing in R MnO 3 perovskites (R= La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Y)

MN Iliev, MV Abrashev, J Laverdière, S Jandl… - Physical Review B …, 2006 - APS
The polarized Raman spectra of orthorhombic R MnO 3 series (R= La, Pr, Nd, Sm, Eu, Gd,
Tb, Dy, Ho, Y) were studied at room temperature. The variation of phonon frequencies with R …

Hexagonal versus perovskite phase of manganite

JS Zhou, JB Goodenough, JM Gallardo-Amores… - Physical Review B …, 2006 - APS
The floating-zone method and high-pressure synthesis have been used to obtain the
hexagonal and the perovskite R Mn O 3 (R= Y, Ho, Er, Tm, Yb, Lu) compounds. We have …

Unusual Evolution of the Magnetic Interactions versus Structural Distortions <?format ?>in Perovskites

JS Zhou, JB Goodenough - Physical review letters, 2006 - APS
We report the refinement of x-ray powder diffraction together with magnetic and thermal
conductivity measurements made on the entire family of R MnO 3 perovskites prepared by …

Spin-Orbit Coupling and Ion Displacements in Multiferroic

HJ Xiang, SH Wei, MH Whangbo, JLF Da Silva - Physical review letters, 2008 - APS
The magnetic and ferroelectric (FE) properties of TbMnO 3 are investigated on the basis of
relativistic density functional theory calculations. We show that, due to spin-orbit coupling …

Microscopic model and phase diagrams of the multiferroic perovskite manganites

M Mochizuki, N Furukawa - Physical Review B—Condensed Matter and …, 2009 - APS
Orthorhombically distorted perovskite manganites, R Mn O 3 with R being a trivalent rare-
earth ion, exhibit a variety of magnetic and electric phases including multiferroic (ie …

First Principles Study of Improper Ferroelectricity in

A Malashevich, D Vanderbilt - Physical review letters, 2008 - APS
We carry out a first-principles theoretical study of the magnetically induced polarization in
orthorhombic TbMnO 3, a prototypical material in which a cycloidal-spin structure generates …