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相关论文: Linear roto-antiferromagnetic effect in multiferro…

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Perovskite metal-organic frameworks (MOFs) have recently emerged as potential candidates for multiferroicity. However, the compounds synthesized so far possess only weak ferromagnetism and low polarization. Additionally, the very low…

材料科学 · 物理学 2018-01-24 Paresh Chandra Rout , Varadharajan Srinivasan

Recent dielectric and magnetic studies of (Ca0.5Mn1.5)MnWO6 ceramics [A.A. Belik, Chem. Mater. 36, 7604 (2024)] have classified this material as a rare hybrid multiferroic, with both antiferromagnetic and (anti)ferroelectric ordering…

The structural and polar properties of BiFeO3 at finite temperature are investigated using an atomistic shell model fitted to first-principles calculations. Molecular Dynamics simulations show a direct transition from the low-temperature…

材料科学 · 物理学 2015-06-23 M. Graf , M. Sepliarsky , S. Tinte , M. G. Stachiotti

Geometrically frustrated structures combined with competing exchange interactions that have different magnitudes are known ingredients for achieving exotic properties. Herein, we studied detailed structural, magnetic, thermal (specific…

材料科学 · 物理学 2023-12-18 P. Mohanty , N. Sharma , D. Singh , Y. Breard , D. Pelloquin , S. Marik , R. P. Singh

Antiferromagnetic order at $T_{\mathrm{N}} = 23$ K has been identified in Mn(III)F(salen), salen = H$_{14}$C$_{16}$N$_2$O$_2$, an $S = 2$ linear-chain system. Using single crystals, specific heat studies performed in magnetic fields up to 9…

Perovskite structure SrMnO$_3$ is a rare example of a multiferroic material where strain-tuning and/or cation substitution could lead to coinciding magnetic and ferroelectric ordering temperatures, which would then promise strong…

材料科学 · 物理学 2018-10-24 Alexander Edström , Claude Ederer

The results of magnetic susceptibility, electrical resistivity (rho), and heat capacity measurements as a function of temperature are reported for the alloys, Ce2Rh(1-x)Co(x)Si3, crystallizing in an AlB2-derived hexagonal strcture. Ce2RhSi3…

强关联电子 · 物理学 2008-03-06 Swapnil Patil , Kartik K Iyer , K. Maiti , E. V. Sampathkumaran

Evidence for a strong spin-lattice coupling in multiferroic HoMnO_3 is derived from thermal expansion measurements along a- and c-axis. The magnetoelastic effect results in sizable anomalies of the thermal expansivities at the…

强关联电子 · 物理学 2009-11-11 C. dela Cruz , F. Yen , B. Lorenz , Y. Q. Wang , Y. Y. Sun , M. M. Gospodinov , C. W. Chu

Two magnetic ordering transitions are found in InMnO3, the paramagnetic to antiferromagnetic transition near ~118 K and a lower possible spin rotation transition near ~42 K. Multiple length scale structural measurements reveal enhanced…

材料科学 · 物理学 2015-06-22 T. Yu , T. A. Tyson , P. Gao , T. Wu , X. Hong , S. Ghose , Y. -S. Chen

Bismuth ferrite, BiFeO3, is the only known room-temperature 'multiferroic' material. We demonstrate here, using neutron scattering measurements in high quality single crystals, that the antiferromagnetic and ferroelectric orders are…

材料科学 · 物理学 2009-11-13 D. Lebeugle , D. Colson , A. Forget , M. Viret , A. M. Bataille , A. Gukasov

We investigate magnetoelectric coupling and low-energy magnetic excitations in multiferroic $\alpha$-Cu$_2$V$_2$O$_7$ by detailed thermal expansion, magnetostriction, specific heat and magnetization measurements in magnetic fields up to…

强关联电子 · 物理学 2018-06-26 L. Wang , J. Werner , A. Ottmann , R. Weis , M. Abdel-Hafiez , J. Sannigrahi , S. Majumdar , C. Koo , R. Klingeler

Multiferroic materials have attracted much interest due to the unusual coexistence of ferroelectric and (anti-)ferromagnetic ground states in a single compound. They offer an exciting platform for new physics and potentially novel devices.…

强关联电子 · 物理学 2014-10-14 Je-Geun Park , Manh Duc Le , Jaehong Jeong , Sanghyun Lee

Pb(Fe$_{0.5}$Nb$_{0.5}$)O$_3$ (PFN), one of the few relaxor multiferroic systems, has a $G$-type antiferromagnetic transition at $T_N$ = 143 K and a ferroelectric transition at $T_C$ = 385 K. By using high-resolution neutron-diffraction…

We have measured the dielectric constant and the pyroelectric current of orthorhombic (space group $Pbam$) NdCrTiO$_5$ polycrystalline samples. The dielectric constant and the pyroelectric current show features associated with ferroelectric…

材料科学 · 物理学 2015-05-30 J. Hwang , E. S. Choi , H. D. Zhou , J. Lu , P. Schlottmann

In this article, we perform the symmetry analysis of perovskite-based multiferroics: bismuth ferrite (BiFeO3)-like, orthochromites (RCrO3), and Ruddlesden-Popper perovskites (Ca3Mn2O7-like), being the typical representatives of…

材料科学 · 物理学 2022-01-26 Zukhra Gareeva , Anatoly Zvezdin , Konstantin Zvezdin , Xiang Ming Chen

A large magnetoresistance (MR) effect was observed in the layered compounds NdCoAsO and SmCoAsO, in which ferromagnetically ordered itinerant-electrons of Co are sandwiched by localized 4$f$-electrons of $Ln^{3+}$, below…

强关联电子 · 物理学 2015-03-19 Hiroto Ohta , Chishiro Michioka , Kazuyoshi Yoshimura

Magnetic and/or dielectric behaviors have been studied for YBaCuFeO5, LuBaCuFeO5 and TmBaCuFeO5, which are known as members of oxygen-defect ordered perovskite systems RBaCuFeO5 (R=lanthanides Ln and other trivalent elements) and have two…

强关联电子 · 物理学 2010-09-21 Yuji Kawamura , Takahiro Kai , Erika Satomi , Yukio Yasui , Yoshiaki Kobayashi , Masatoshi Sato

ABO3 perovskite multiferroic La0.5Bi0.5Mn0.5Fe0.5O3.09 where the B-site cations is responsible for the magnetic properties and the A-site cation with lone pair electron is responsible for the ferroelectric properties was synthesized at…

材料科学 · 物理学 2008-08-25 Asish K. Kundu , R. Ranjith , V. Pralong , N. Nguyen , B. Kundys , V. Caignaert , W. Prellier , B. Raveau

From magnetic susceptibility, dielectric permittivity, electric polarization and specific heat measurements, we discover spin-induced ferroelectricity and magnetoelectric coupling in Mn3TeO6 and observe two successive magnetic transitions…

材料科学 · 物理学 2015-12-01 L. Zhao , Z. Hu , C. Y. Kuo , T. -W. Pi , M. -K. Wu , L. H. Tjeng , A. C. Komarek

The thermodynamics of the antiferromagnetic ordering transition in NiO and the photoelectron spectra in the antiferromagnetic phase are studied by the Variational Cluster Approximation. Using realistic Racah parameters to describe the…

强关联电子 · 物理学 2015-04-01 R. Eder