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We have used in-field neutron and X-ray single crystal diffraction to measure the incommensurability δ of the crystal and magnetic structure of multiferroic TbMnO3 . We show that the flop in the electric polarization at the critical…

Strongly Correlated Electrons · Physics 2009-11-11 N. Aliouane , D. N. Argyriou , J. Strempfer , I. Zegkinoglou , S. Landsgesell , M. v. Zimmermann

A single-phase polycrystalline La0.5Ba0.5CoO3-d sample was synthesized by microwave irradiation within 20 minutes of processing time and its structural, magnetic, electrical, and magnetostrictive properties were investigated. While the…

Materials Science · Physics 2024-06-12 M. Manikandan , A. Ghosh , R. Mahendiran

Numerous authors have referred to room-temperature magnetic switching of large electric polarizations as The Holy Grail of magnetoelectricity.We report this long-sought effect using a new physical process of coupling between magnetic and…

Materials Science · Physics 2009-02-24 Ashok Kumar , G. L. Sharma , R. S. Katiyar R. Pirc , R. Blinc J. F. Scott

The Gd3Ga5-xAlxO12 (0 < x < 5) solid solution has been prepared using ceramic synthesis routes and the structural and magnetic properties investigated using X-ray diffraction, magnetic susceptibility, chi, and isothermal magnetisation,…

Materials Science · Physics 2014-03-06 A. C. Sackville Hamilton , G. I. Lampronti , S. E. Rowley , S. E. Dutton

The samples LaCoO3 with dilute substitutions on cobalt sites have been studied using the resistivity, thermopower and magnetic susceptibility measurements over the temperature range up to ~900 K. The Co-site substitution does not affect the…

Materials Science · Physics 2010-07-30 J. Hejtmanek , Z. Jirak , K. Knizek , M. Marysko , M. Veverka , C. Autret

The dielectric permittivity and resistivity have been measured simultaneously as a function of magnetic field in Pr1-xCaxMnO3 crystals with different doping. A huge increase of dielectric permittivity was detected near percolation…

Adaptation and Self-Organizing Systems · Physics 2009-11-11 B. Kundys , N. Bellido , C. Martin , Ch. Simon

The magnetoelectric effect in the system $RAl_3(BO_3)_4$ ($R$ = Tb, Ho, Er, Tm) is investigated between 3 K and room temperature and at magnetic fields up to 70 kOe. We show a systematic increase of the magnetoelectric effect with…

Strongly Correlated Electrons · Physics 2015-04-27 K. -C. Liang , R. P. Chaudhury , B. Lorenz , Y. Y. Sun , L. N. Bezmaternykh , I. A. Gudim , V. L. Temerov , C. W. Chu

We present magnetization studies in a series of phase separated La$_{0.5}$Ca$%_{0.5}$MnO$_{3}$ samples, with different low temperature fractions of the ferromagnetic (FM) and charge ordered-antiferromagnetic (CO-AFM) phases. A particular…

Strongly Correlated Electrons · Physics 2016-08-31 R. S. Freitas , L. Ghivelder , P. Levy , F. Parisi

Polycrystalline YMn1-xFexO3 (YMFO_x) (0 <= x <= 0.1) compounds have been prepared in single phase and characterized by synchrotron X-ray diffraction, X-ray absorption near edge spectroscopy, magnetization, and dielectric measurements.…

Materials Science · Physics 2017-07-26 Sonu Namdeo , A. K. Sinha , M. N. Singh , A. M. Awasthi

The local structure about the Mn site in the half doped system La0.5Ca0.5MnO3 was measured in magnetic fields up 10 T to probe the melting of the charge ordered state. Examination of the Mn-O and Mn-Mn correlations reveal three distinct…

Strongly Correlated Electrons · Physics 2009-11-10 T. A. Tyson , M. Deleon , M. Crof , V. G. Harris , C. -C. Kao , J. Kirkland , S. -W. Cheong

We present an extensive study of the time dependence of the magnetization in a polycrystalline and low temperature charge ordered La0.5Ca0.5MnO3 sample. After application and removal of a 5 T magnetic field, a systematic variation of the…

Strongly Correlated Electrons · Physics 2007-05-23 J. Lopez , P. N. Lisboa-Filho , W. A. C. Passos , W. A. Ortiz , F. M. Araujo-Moreira

We theoretically investigate the magneto-optical (MO) properties of monolayer (ML) transition metal dichalcogenides (TMDs) in the presence of external electrical and quantizing magnetic fields and of the proximity-induced exchange…

Mesoscale and Nanoscale Physics · Physics 2024-11-05 Y. Li , Y. M. Xiao , W. Xu , L. Ding , M. V. Milošević , F. M. Peeters

Magnetic ions (Mn) were substituted in MgB_2 single crystals resulting in a strong pair-breaking effect. The superconducting transition temperature, T_c, in Mg_{1-x}Mn_xB_2 has been found to be rapidly suppressed at an initial rate of 10…

We explore the impact of a magnetic field on the ferroelectric domain pattern in polycrystalline hexagonal ErMnO3 at cryogenic temperatures. Utilizing piezoelectric force microscopy measurements at 1.65 K, we observe modifications of the…

Materials Science · Physics 2024-03-21 J. Schultheiß , L. Puntigam , M. Winkler , S. Krohns , D. Meier , H. Das , D. M. Evans , I. Kézsmárki

An Eu NMR study in the ferromagnetic phase of pure and Gd doped EuO was performed. A complete description of the NMR lineshape of pure EuO allowed for the influence of doping EuO with Gd impurities to be highlighted. The presence of a…

Strongly Correlated Electrons · Physics 2009-11-10 Arnaud Comment , Jean-Philippe Ansermet , Charles P. Slichter , Heesuk Rho , Clark S. Snow , S. Lance Cooper

We report magnetic, dielectric and magnetodielectric responses of pure monoclinic bulk phase of partially-disordered La2NiMnO6, exhibiting a spectrum of unusual properties and establish that this system intrinsically is a true multiglass…

We report the suppression of the magnetic phase transition in La1-xCaxMnO3 close to the localized-to-itinerant electronic transition, i.e. at x = 0.2 and x = 0.5. A new crossover temperature Tf can be defined for these compositions instead…

Materials Science · Physics 2009-11-10 F. Rivadulla , J. Rivas , J. B. Goodenough

Zn0.96Mn0.04O samples were synthesized by solid state reaction technique to explore their magnetic behavior. Structural, morphological and magnetic properties of the samples have been found to be modified by 50 MeV Li+3 ion beam…

Materials Science · Physics 2012-06-26 S. K. Neogi , S. Chattapadhyay , R. Karmakar , Aritra Banerjee , S. Bandyopadhyay , Alok Banerjee

Below its N\'eel temperature, the frustrated magnet CdCr$_2$O$_4$ exhibits an antiferromagnetic spin-spiral ground state. Such states can give rise to a sizable magnetoelectric coupling. In this report, we measure the electric polarization…

Materials Science · Physics 2020-07-15 L. Rossi , D. Brüning , H. Ueda , Y. Skourski , T. Lorenz , B. Bryant

Magnetization has been measured for polycrystalline samples of LaCo1-xRhxO3 (0 {\leq} x {\leq} 0.9) in order to investigate magnetism induced in the solid solution of two nonmagnetic end phases of LaCoO3 and LaRhO3. It is found that a…

Strongly Correlated Electrons · Physics 2011-09-13 Shinichiro Asai , Noriyasu Furuta , Yukio Yasui , Ichiro Terasaki