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From the measurement of dielectric, ferroelectric, and magnetic properties we observe simultaneous ferroelectric and magnetic transitions around $\sim$600 K in orthorhombic LuFeO$_3$. We also observe suppression of the remanent polarization…

Strongly Correlated Electrons · Physics 2014-08-28 Ujjal Chowdhury , Sudipta Goswami , Dipten Bhattacharya , Jiten Ghosh , Soumen Basu , Samya Neogi

Magnetic dc susceptibility between 1.5 and 800 K, ac susceptibility and magnetization, thermodynamic properties, temperature dependence of radio and audio-wave dielectric constants and conductivity, contact-free dielectric constants at…

Materials Science · Physics 2010-07-22 Jun Lu , A. Günther , F. Schrettle , F. Mayr , S. Krohns , P. Lunkenheimer , A. Pimenov , V. D. Travkin , A. A. Mukhin , A. Loidl

Dielectric and magnetic properties of Eu0.5Ba0.25Sr0.25TiO3 are investigated between 10 K and 300 K in the frequency range from 10 Hz to 100 THz. A peak in permittivity revealed near 130 K and observed ferroelectric hysteresis loops prove…

Materials Science · Physics 2012-10-12 Veronica Goian , Stanislav Kamba , Premysl Vanek , Maxim Savinov , Christelle Kadlec , Jan Prokleska

Our measured dielectric constant and mechanical response of multiferroic BiFeO3 indicate four phase transitions below room temperature. Features correlate with those reported at 50K (from a peak in the zero-field-cooled magnetic…

Materials Science · Physics 2008-06-23 S. A. T. Redfern , C. Wang , J. W. Hong , G. Catalan , J. F. Scott

We prospect magneto-dielectricity in $La_{0.53}Ca_{0.47}MnO_{3}$ across its paramagnetic (PMI) to ferromagnetic (FMM) isostructural transition at $T_{C} \sim 253K$, by magnetic ($(M)$), caloric ($(W)$), dielectric ($(\epsilon')$),…

Materials Science · Physics 2017-07-26 Suchita Pandey , Jitender Kumar , A. M. Awasthi

The sol-gel prepared (1-x) Na0.5Bi0.5TiO3- (x) CaMnO3 (x=0, 0.03, 0.06, 0.12) compositions show a Rhombohedral (R3c) phase for x=0.06 while a mixed Rhombohedral (R3c) and orthorhombic (Pnma) phases for the x=0.12. The lattice volume…

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…

Materials Science · Physics 2015-05-30 J. Hwang , E. S. Choi , H. D. Zhou , J. Lu , P. Schlottmann

We report observation of surface-defect-induced room temperature multiferroicity - surface ferromagnetism ($M_S$ at 50 kOe $\sim$0.005 emu/g), ferroelectricity ($P_R$ $\sim$2 nC/cm$^2$), and significantly large magnetoelectric coupling…

We report for the first time, that Fe3Se4 is a room temperature, type-II multiferroic with magnetoelectric coupling. We observed the coexistence of coupled ferrimagnetic and ferroelectric ordering in Fe3Se4nanorods well above room…

Strongly Correlated Electrons · Physics 2019-06-13 Mousumi Sen Bishwas , Pankaj Poddar

We have fabricated a variety of "PZT-PFW" (PbZr0.52Ti0.48O3)1-x(PbFe2/3W1/3O3)x [PZTFWx; 0.2 < x < 0.4] single-phase tetragonal ferroelectrics via chemical solution deposition (CSD) [polycrystalline] and pulsed laser deposition (PLD)…

Materials Science · Physics 2010-06-18 Ashok Kumar , Ram S. Katiyar , James F. Scott

We have investigated the effect of temperature on magnetic properties of Bi$_{0.9}$Gd$_{0.1}$Fe$_{1-x}$Ti$_x$O$_3$ (x = 0.00-0.20) multiferroic system. Unexpectedly, the coercive fields ($H_{c}$) of this multiferroic system increased with…

Materials Science · Physics 2016-03-29 Bashir Ahmmad , M. Z. Islam , Areef Billah , M. A. Basith

The promise of a strong magnetoelectric coupling in a multiferroic material is not only of fundamental interest, but also forms the basis of next generation memory devices where the direction of magnetization can be reversed by an external…

Materials Science · Physics 2025-04-03 Urmimala Dey , Emma E. McCabe , Jorge Íñiguez-González , Nicholas C. Bristowe

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

We have investigated magnetization(M), magnetocaloric effect(MCE) and magnetothermopower(MTEP) in polycrystalline Pr0.6Sr0.4MnO3, which shows a second-order paramagnetic to ferromagnetic transition near room temperature (TC = 305 K).…

Strongly Correlated Electrons · Physics 2012-10-19 D. V. Maheshwar Repaka , T. S. Tripathi , M. Aparnadevi , R. Mahendiran

In this paper the structural, magnetic, and dielectric properties of langasite compound Pb$_3$TeMn$_3$P$_2$O$_{14}$ have been investigated as a candidate of short-range magnetic correlations driven development of dielectric anomaly above…

Materials Science · Physics 2021-07-01 Rafikul Ali Saha , Desheng Fu , Mitsuru Itoh , Sugata Ray

We report NdCrTiO5 to be an unusual multiferroic material with large magnetic field dependent electric polarization. While magneto-electric coupling in this two magnetic sub-lattice oxide is well established, the purpose of this study is to…

Materials Science · Physics 2015-06-17 J. Saha , G. Sharma , S. Patnaik

Sol-gel deposited (010) textured polycrystalline thin films of gallium ferrite (GaFeO3 or GFO) on n-Si(100) and Pt/Si(111) substrates are characterized for room temperature multiferroism. Structural characterization using X-ray diffraction…

Materials Science · Physics 2016-11-04 Monali Mishra , Amritendu Roy , Ashish Garg , Rajeev Gupta , Somdutta Mukherjee

In multiferroic BiFeO$_3$ a cycloidal antiferromagnetic structure is coupled to a large electric polarization at room temperature, giving rise to magnetoelectric functionality that may be exploited in novel multiferroic-based devices. In…

Strongly Correlated Electrons · Physics 2017-03-08 R. D. Johnson , P. A. McClarty , D. D. Khalyavin , P. Manuel , P. Svedlindh , C. S. Knee

We show that room temperature resistivity of Ba0.5Sr1.5Zn2Fe12O22 single crystals increases by more than three orders of magnitude upon being subjected to optimized heat treatments. The increase in the resistivity allows the determination…

Materials Science · Physics 2010-01-11 Y S Chai , S H Chun , S Y Haam , Y S Oh , Ingyu Kim , Kee Hoon Kim

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…

Materials Science · Physics 2023-12-18 P. Mohanty , N. Sharma , D. Singh , Y. Breard , D. Pelloquin , S. Marik , R. P. Singh
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