Results 31 to 40 of about 2,377 (184)

Structural and magnetic properties of nanocrystalline BaFe12O19 synthesized by microwave-hydrothermal method [PDF]

, 2012
Nanocrystalline BaFe12O19 powders were prepared by microwave-hydrothermal method at 200 °C/45 min. The as-synthesized powders were characterized by using X-ray diffraction (XRD), thermogravimetry (TG) and differential thermal analysis (DTA).
Angadi, B., Matteppanavar, S., Praveena, K., Sadhana, K.   +3 more
core   +1 more source

ASb₃Mn₉O₁₉ (A = K or Rb): New Mn-Based 2D Magnetoplumbites with Geometric and Magnetic Frustration. [PDF]

Adv Mater
The first Mn‐based magnetoplumbites, ASb3Mn9O19 (A = K or Rb), are discovered, synthesized, and characterized. According to magnetic properties measurements, neutron diffraction, and reverse Monte Carlo refinement, short‐range magnetic correlations are observed in the new materials.
Chen J, Calder S, Paddison JAM, Angelo G, Klivansky L, Zhang J, Cao H, Gui X.   +7 more
europepmc   +2 more sources

Ferroelectric relaxor quantum crystals [PDF]

, 2018
Funding: UK EPSRC grant EP/P024637/1.A discussion is given of ferroelectrics (FEs) that have their Curie temperatures Tc very near absolute zero. These have differences in their dynamics in comparison with higher-temperature systems, since domain wall ...
Scott, J. F.
core   +2 more sources

Structure, Magnetic Properties and Electromagnetic Response of Y-Type Hexaferrites and Hexaferrite-Based Composite Materials

Russian Physics Journal, 2019
The paper presents a study of the phase composition, morphology, magnetic and electromagnetic properties both of Y-type hexaferrites Ba2Ni2–xCuxFe12O22 (x = 0.4, 1.0, 1.2) and composites produced therefrom. Hexaferrites are synthesized via standard ceramic method. Ferromagnetic resonance technique is applied to measure the magnetocrystalline anisotropy
Wagner, Dmitry V., Dotsenko, Olga A., Zhuravlev, Victor A.   +2 more
openaire   +2 more sources

Low magnetic field reversal of electric polarization in a Y-type hexaferrite

, 2011
Magnetoelectric multiferroics in which ferroelectricity and magnetism coexist have attracted extensive attention because they provide great opportunities for the mutual control of electric polarization by magnetic fields and magnetization by electric ...
Liu, Yi, Sun, Young, Wang, Fen, Yan, Li-Qin, Zou, Tao   +4 more
core   +1 more source

Preparation of Al3+-Co2+ co-substituted M-type SrCaNd hexaferrites and their controlled magnetic properties

AIP Advances, 2018
Al3+-Co2+ co-substituted M-type SrCaNd hexaferrites with cation compositions Sr0.5Ca0.2Nd0.3Fe12.0-x(Al0.5Co0.5)xO19 were synthesized using the traditional ceramic process by varying AlCo content (x) (0.0 ≤ x ≤ 0.5). The microstructures, morphologies and
Yujie Yang, Fanhou Wang, Juxiang Shao, Duohui Huang, A. V. Trukhanov, S. V. Trukhanov   +5 more
doaj   +1 more source

Realization of giant magnetoelectricity in helimagnets [PDF]

, 2010
We show that low field magnetoelectric (ME) properties of helimagnets Ba0.5Sr1.5Zn2(Fe1-xAlx)12O22 can be efficiently tailored by Al-substitution level.
Bumsung Lee, Deepshikha Jaiswal-Nagar, Dong Hak Nam, H. Schmid, Ingyu Kim, Jae-Ho Chung, Jae-Hoon Park, Kee Hoon Kim, Kyung-Tae Ko, Sae Hwan Chun, So Young Haam, T. M. Perekalina, Yi Sheng Chai, Yoon Seok Oh   +13 more
core   +2 more sources

Efeito da variação estequiométrica na formação de ferritas BaM produzidas pelo método SHS e pelo método cerâmico tradicional Effect of stoichiometric variation on the BaM ferrite production by SHS and traditional ceramic processes

Cerâmica, 2007
As ferritas do tipo BaM são cerâmicas ferrimagnéticas, usualmente aplicadas em sistemas de gravação magnética e como magnetos duros. Possuem alta estabilidade química, resistência a corrosão e baixo custo de produção. Diante da sua crescente importância,
M. T. Yasuda, H. L. Hasegawa, P. I. Paulin F., M. R. Morelli   +3 more
doaj   +1 more source

Room-Temperature Ferrimagnet with Frustrated Antiferroelectricity: Promising Candidate Toward Multiple State Memory

, 2014
On the basis of first-principles calculations we show that the M-type hexaferrite BaFe12O19 exhibits frustrated antiferroelectricity associated with its trigonal bipyramidal Fe3+ sites.
Wang, P. S., Xiang, H. J.
core   +2 more sources

Direct calorimetric measurements of isothermal entropy change on single crystal W-type hexaferrites at the spin reorientation transition [PDF]

, 2012
We report on the magnetic field induced isothermal entropy change, \Delta s(Ha, T), of W-type ferrite with CoZn substitution. Entropy measurements are performed by direct calorimetry.
A. Pasko, C. P. Sasso, F. Mazaleyrat, M. Kuepferling, M. LoBue, Smit J., V. Basso, V. Loyau   +7 more
core   +3 more sources