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Magnetic field induced ferroelectric hysteresis loop observed in Bi0.75Sr0.25FeO3-delta is of prime importance. The coexistence of antiferromagnetism and weak ferromagnetism is responsible for the original magnetoelastic and…

Materials Science · Physics 2009-11-13 Bohdan Kundys , Antoine Maignan , Christine Martin , Ninh Nguyen , Charles Simon

Multiferroic BaMnF$_4$ powder were prepared by hydrothermal method. Hysteretic field dependent magnetization curve at 5 K confirms the weak ferromagnetism aroused from the canted antiferromagnetic spins by magnetoelectric coupling. The…

Materials Science · Physics 2015-12-18 Shuang Zhou , Ji Wang , Xiaofeng Chang , Shuangbao Wang , Bin Qian , Zhida Han , Qingyu Xu , Jun Du , Peng Wang , Shuai Dong

Magnetoelectric (ME) effect is recognized for its utility for low-power electronic devices.Largest ME coefficients are often associated with phase transitions in which ferroelectricity is induced by magnetic order. Unfortunately, in these…

The dielectric constant of multiferroic hexagonal HoMnO_3 exhibits an unprecedented diversity of anomalies at low temperatures (1.8 K< T <10 K) and under external magnetic fields related to magnetic phase transitions in the coupled system…

Strongly Correlated Electrons · Physics 2009-11-11 F. Yen , C. R. dela Cruz , B. Lorenz , Y. Y. Sun , Y. Q. Wang , M. M. Gospodinov , C. W. Chu

The study of abrupt increases in magnetization with magnetic field known as metamagnetic transitions has opened a rich vein of new physics in itinerant electron systems, including the discovery of quantum critical end points with a marked…

Magnetoelectric mutual control in multiferroics, which is the electric control of magnetization, or reciprocally the magnetic control of polarization has attracted much attention because of its possible applications to spintronic devices,…

Materials Science · Physics 2024-05-10 Shimon Tajima , Hidetoshi Masuda , Yoichi Nii , Shojiro Kimura , Yoshinori Onose

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

Linear magnetoelectric effect is an attractive phenomenon in condensed matters and provides indispensable technological functionalities. Here a colossal linear magnetoelectric effect with diagonal component alfa_33 reaching up to ~480 ps/m…

Materials Science · Physics 2023-10-09 Yuting Chang , Yakui Weng , Yunlong Xie , Bin You , Junfeng Wang , Liang Li , Jun-Ming Liu , Shuai Dong , Chengliang Lu

We have investigated magnetoelastic effects in multiferroic HoMnO$_3$ below the antiferromagnetic phase transition $T_N \approx 75$ K by neutron powder diffraction. The lattice parameter $a$ of the hexagonal unit cell of HoMnO$_3$ decrease…

Strongly Correlated Electrons · Physics 2014-01-08 Tapan Chatterji , Thomas Hansen , Simon A. J. Kimber , Dipten Bhattacharya

We present a study of the dielectric, structural, and magnetic properties of the multiferroic or linear magnetoelectric substitution series [(NH$_4$)$_{1-x}$K$_x$]$_2$[FeCl$_5$(H$_2$O)]. Pyroelectric currents, magnetic susceptibilities, and…

AlFeO3, GaFeO3 and Al0.5Ga0.5FeO3, all crystallizing in a non-centrosymmetric space group, are multiferroic and also exhibit magnetoelectric properties, with Al0.5Ga0.5FeO3 showing unusually large magnetocapacitance at 300 K.

Materials Science · Physics 2010-08-30 Ajmala Shireen , Rana Saha , A. Sundaresan , C. N. R. Rao

We report the observation a continuous rotation of the polarization in Mn$_{0.95}$Co$_{0.05}$WO$_{4}$ under magnetic field. At zero field, this compound shows a transition into the spiral magnetic and ferroelectric phase at 12.2K, which is…

Strongly Correlated Electrons · Physics 2012-07-25 K. -C. Liang , R. P. Chaudhury , Y. Q. Wang , Y. Y. Sun , B. Lorenz , C. W. Chu

The structural, dielectric, magnetic, and magnetoelectric (ME) properties of particulate composites containing lead-iron niobate and lead titanate piezoelectric 0.94[PbFe$_{0.5}$Nb$_{0.5}$O$_3$]-0.06[PbTi$_{0.5}$O$_3$] (PFN-PT) and…

Materials Science · Physics 2022-08-25 Mohammad Torabi Shahbaz , Hossein Ahmadvand , Hadi Papi , Saeideh Mokhtari , Parviz Kameli

The thermodynamic, magnetic, dielectric, and magnetoelectric properties of HoFe$_3$(BO$_3$)$_4$ and Ho$_{0.5}$Nd$_{0.5}$Fe$_3$(BO$_3$)$_4$ are investigated. Both compounds show a second order Ne\'{e}l transition above 30 K and a first order…

Strongly Correlated Electrons · Physics 2009-09-24 R. P. Chaudhury , F. Yen , B. Lorenz , Y. Y. Sun , L. N. Bezmaternykh , V. L. Temerov , C. W. Chu

Magnetoelectric coupling in the polycrystalline antiferromagnets CuFe0.95Rh0.05O2 and CuFeO2 has been investigated. For both samples, electric polarization was observed in the absence of an applied external magnetic field demonstrating that…

Materials Science · Physics 2009-05-27 B. Kundys , A. Maignan , D. Pelloquin , Ch. Simon

Rhenium oxides belonging to the family $A$ReO$_4$ where $A$ is a metal cation, exhibit interesting electronic and magnetic properties. In this study we have utilized the muon spin rotation/relaxation ($\mu^+$SR) technique to study the…

A series of manganites Tb1-xHoxMnO3 (0<=x<=0.6) with orthorhombic structure are synthesized and detailed investigations on their multiferroicity are performed. Successive magnetic transitions upon temperature variation are evidenced for all…

Strongly Correlated Electrons · Physics 2010-04-19 C. L. Lu , S. Dong , K. F. Wang , J. -M. Liu

The influence of an external static magnetic field (up to 480 mT)on the structural properties of EuTiO$_3$ (ETO) polycrystalline samples was examined by powder XRD at the Elettra synchrotron facilities in the temperature range 100-300K.…

Materials Science · Physics 2021-12-15 P. Pappas , M. Calamiotou , M. Polentarutti , G Bais , A. Bussmann-Holder , E. Liarokapis

Complex experimental and theoretical study of the magnetic, magnetoelectric, and magnetoelastic properties of neodymium iron borate NdFe3(BO3)4 along various crystallographic directions have been carried out in strong pulsed magnetic fields…

We demonstrate room temperature ferroelectricity in the epitaxial thin films of magnetoelectric GaFeO3. Piezo-force measurements show a 180o phase shift of piezoresponse upon switching the electric field indicating nanoscale…

Materials Science · Physics 2015-06-15 Somdutta Mukherjee , Amritendu Roy , Sushil Auluck , Rajendra Prasad , Rajeev Gupta , Ashish Garg