Results 21 to 30 of about 324,116 (262)

Ga-, Y-, and Sc-substituted M-type ferrites for self-biasing circulators in LTCC microwave modules

AIP Advances, 2020
The partial substitution of Fe3+ by diamagnetic Me3+ in BaMexFe12-xO19 with Me = Ga and Y (0 ≤ x ≤ 2) was studied. Samples were synthesized by the mixed-oxide route and their properties were compared to BaScxFe12-xO19 ferrites.
Manuel Heidenreich, Xinyi Ma, Wanja Gitzel, Arne Jacob, Beate Capraro, Jörg Töpfer   +5 more
doaj   +1 more source

Structure and magnetic properties of Co-Zn substituted hexagonal ferrites

MATEC Web of Conferences, 2018
In In this study to understand the substitutional effect of Co-Zn on structural and magnetic properties of the BaFe12-2xCoxZnxO19 M-type hexagonal ferrites with concentration (x= 0.0, 0.2, 0.4, 0.6, 0.8, 1.0) were synthesized by the ceramic method.
Handoko Erfan, B S Anggoro, Sugihartono Iwan, AM Mangasi, Nurwulan Dini Siti, Christina Serafin, Jalil Zulkarnain   +6 more
doaj   +1 more source

Renormalized field theory for the static crossover in dipolar ferromagnets [PDF]

, 1988
A field theoretical description for the static crossover in dipolar ferromagnets is presented. New non leading critical exponents for the longitudinal static susceptibility are identified and the existence and magnitude of the dip in the effective ...
Frey, Erwin, Schwabl, F.
core   +4 more sources

LTCC processed CoTi substituted M-type barium ferrite composite with BBSZ glass powder additives for microwave device applications

AIP Advances, 2016
Hexagonal magnetoplumbite ferrites typically have sintering temperatures above 1100∘C in order to stabilize a single phase compound, which is much higher than the melting point of silver leading to device fabrication challenges.
Yu Wang, Yingli Liu, Jie Li, Qian Liu, Huaiwu Zhang, Vincent. G. Harris   +5 more
doaj   +1 more source

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

Remarkable microwave absorption efficiency of low loading ratio of Ni0.25Co0.25Ti0.5Fe2O4/SrCoTiFe10O19/Cu composite coated with polyprrole within polyurethane matrix

Materials Research Express, 2020
NiCoTi spinel ferrite, SrCoTi hexagonal ferrite and copper microparticles were coated with polypyrrole (PPY) using in situ chemical oxidative method. The resulted microwave absorbing material was introduced into polyurethane matrix.
Dong Xu, Mojtaba Jafarian, Seyyed Salman Seyyed Afghahi, Yomen Atassi, Rama Al-Qassar Bani Al-Marjeh   +4 more
doaj   +1 more source

The Process Automation of Temperature Measurement by Measuring Facility Which is Consists from Agilent E8363B and Freezer/Heating Chamber TNC-80

MATEC Web of Conferences, 2018
The vector network analyzer Agilent PNA series E8363B and freezer and heating chamber TNC-80 were used to measure electromagnetic parameters of natural and artificial substances under temperature influences.
Dotsenko Olga, Frolov Kirill
doaj   +1 more source

Terahertz and infrared spectroscopic evidence of phonon-paramagnon coupling in hexagonal piezomagnetic YMnO3 [PDF]

, 2011
Terahertz and far-infrared electric and magnetic responses of hexagonal piezomagnetic YMnO3 single crystals are investigated. Antiferromagnetic resonance is observed in the spectra of magnetic permeability mu_a [H(omega) oriented within the hexagonal ...
C. Kadlec, G. F. Koster, G. M. Nedlin, K. Kohn, K. Z. Rushchanskii, L. D. Landau, M. Ležaić, P. Kužel, R. R. Birss, R. V. Pisarev, S. Kamba, S. L. Dexheimer, V. G. Bar'yakhtar, V. Goian   +13 more
core   +2 more sources

Impact of Al3+ ions on magnetic and microwave properties of BaM:Ti hexaferrites

Journal of Materials Research and Technology, 2021
BaFe(11.5-x)Ti0.5AlxO19 (0.1 ≤ x ≤ 3.0) samples were produced using solid state reaction method. Systematic studies of the crystal structure parameters, magnetic and microwave properties were carried out.
V.E. Zhivulin, I.A. Solizoda, D.A. Vinnik, S.A. Gudkova, E.A. Trofimov, A.Yu. Starikov, O.V. Zaitseva, D.P. Sherstyuk, A.E. Vasiljeva, D.A. Zherebtsov, S.V. Taskaev, P.A. Zezyulina, D.A. Petrov, A.V. Trukhanov   +13 more
doaj   +1 more source

Critical dynamics of ferromagnets [PDF]

, 1988
The crossover in the dynamics from isotropic to dipolar critical behaviour has been a matter of debate over many years. We review a mode coupling theory for dipolar ferromagnets which gives a unified explanation of the seemingly contradictory ...
Frey, Erwin, Schwabl, F.
core   +4 more sources