English
Related papers

Related papers: Dense strontium hexaferrite-based permanent magnet…

200 papers

Vanadium substituted SrM hexaferrites (SrFe12-xVxO19 with x = 0.2, 0.4) and Eu-substituted BaM hexaferrite (Ba0.8Eu0.2Fe12O19) were prepared by high energy ball milling and sintering at 1200{\deg} C. X-ray diffraction measurements revealed…

Materials Science · Physics 2017-07-18 Sami H. Mahmood , Ahmad M. Awadallah , Ibrahim Bsoul , Yazan Maswadeh

In this study, we have compared magnetic and magnetostrictive properties of polycrystalline CoFe$_2$O$_4$ pellets, produced by three different methods, focusing on the use of Spark Plasma Sintering (SPS). This technique allows a very short…

Materials Science · Physics 2018-03-28 Alex Aubert , V. Loyau , F. Mazaleyrat , M. Lobue

Interactions of electron spins with rotational degrees of freedom during collisions or with external fields are fundamental processes that limit the coherence time of spin gases. We experimentally study the decoherence of hot cesium spins…

Quantum Physics · Physics 2025-05-29 Mark Dikopoltsev , Avraham Berrebi , Uriel Levy , Or Katz

The composites of strontium-doped lanthanum manganite (LSMO) with zinc oxide (ZnO) are candidate materials for energy harvesting by virtue of their magnetic and piezoelectric characteristics. They could be used to harvest energy from stray…

Applied Physics · Physics 2017-09-07 Robert Kinner , Abdul-Majeed Azad , G Srinivasan , G Sreenivasulu , Menka Jain

One challenge in condensed-matter physics is to unravel the interplay between magnetism and superconductivity in copper oxides with a high critical temperature (Tc). Kang et al. claim to have revealed a quantum phase transition from the…

Condensed Matter · Physics 2007-05-23 P. K. Mang , S. Larochelle , M. Greven

Bulk composites using powder blends of Mn and Bi with equal atomic ratios are consolidated and severely deformed by high-pressure torsion (HPT). Subsequent annealing treatments lead to the formation of the ferromagnetic and rare-earth free…

Magnetic refrigeration based on the magnetocaloric effect (MCE) of materials is a potential technique that has prominet advantages over the currently used gas compression-expansion technique in the sense of its high efficiency and…

Materials Science · Physics 2023-10-18 B. G. Shen , J. R. Sun , F. X. Hu , H. W. Zhang , Z. H. Cheng

We develop a high-throughput method for measuring the composition dependence of magnetoresistance (MR) and spin-transfer-torque (STT) effects in current-perpendicular-to-plane giant magnetoresistance (CPP-GMR) devices and report its…

Materials Science · Physics 2024-06-12 Vineet Barwal , Hirofumi Suto , Tomohiro Taniguchi , Yuya Sakuraba

Thin films of silver containing 0.3 - 1.5 at % Fe have been prepared by vapor co-deposition. Depending on substrate temperature and iron concentration we could systematically follow the formation of nanometer size clusters of iron from…

Strongly Correlated Electrons · Physics 2008-08-08 W. T. Herrera , S. M. Ramos , E. M. Baggio-Saitovitch , F. J. Litterst

Co$_{1-x}$Mn$_x$Cr$_2$O$_4$ crystallizes as a normal spinel in the cubic $Fd \overline{3}m$ space group, and the end members have been reported to display a region of collinear ferrimagnetism as well as a low-temperature spin-spiral state…

The synthesis of aluminum substituted strontium hexaferrite nanoparticles (SrFe12-xAlxO19 with x = 0-3), via three different preparation methods, is investigated. The synthesis methods are hydrothermal autoclave (AC) synthesis, a citrate…

We present the low temperature magnetic properties in Ni1.5Fe1.5O4 ferrite as the function of pH at which the material was prepared by chemical route and post annealing temperature. The material is a ferri or ferromagnet, but showed…

Materials Science · Physics 2018-05-09 R. N. Bhowmik , K. S. Aneeshkumar

Heavy fermion materials have been a rich playground for strongly correlated physics for decades. However, engineering tunable and synthesizable heavy fermion materials remains a challenge. We strive to integrate heavy fermion properties…

Materials Science · Physics 2023-11-21 Rishi Rao , Li Zhu

Motivated by a recent experiment on volborthite, a typical spin-$1/2$ antiferromagnet with a kagom\'{e} lattice structure, we study the magnetization process of a classical Heisenberg model on a spatially distorted kagom\'{e} lattice using…

Strongly Correlated Electrons · Physics 2021-07-26 Ryui Kaneko , Takahiro Misawa , Masatoshi Imada

To reduce material and processing costs of commercial permanent magnets and to attempt to fill the empty niche of energy products, 10 - 20 MGOe, between low-flux (ferrites, alnico) and high-flux (Nd2Fe14B- and SmCo5-type) magnets, we report…

We demonstrate that applying modest magnetic fields during high-temperature crystal growth can profoundly alter the structure and ground state of a spin-orbit-coupled, antiferromagnetic trimer lattice. Using BaIrO3 as a model system, whose…

Strongly Correlated Electrons · Physics 2026-01-13 Tristan R. Cao , Hengdi Zhao , Xudong Huai , Arabella Quane , Thao T. Tran , Feng Ye , Gang Cao

We present a combined experimental and theoretical study of the mineral atacamite Cu$_2$Cl(OH)$_3$. Density functional theory yields a Hamiltonian describing anisotropic sawtooth chains with weak 3D connections. Experimentally, we fully…

To investigate the magnetic properties of SmFe$_{12}$, we construct an effective spin model, where magnetic moments, crystal field (CF) parameters, and exchange fields at 0 K are determined by first principles. Finite temperature magnetic…

Materials Science · Physics 2020-12-02 Takuya Yoshioka , Hiroki Tsuchiura , Pavel Novák

Engineering of magnetic materials for developing better spintronic applications relies on the control of two key parameters: the spin polarization and the Gilbert damping responsible for the spin angular momentum dissipation. Both of them…

Dynamic magnetic properties of $\mathrm{Y_{0.7}Ca_{0.3}MnO_{3}}$ are reported. The system appears to attain local ferromagnetic order at $T_{\mathrm{SRF}} \approx 70$ K. Below this temperature the low field magnetization becomes history…

Materials Science · Physics 2009-10-31 R. Mathieu , P. Nordblad , D. N. H. Nam , N. X. Phuc , N. V. Khiem
‹ Prev 1 3 4 5 6 7 10 Next ›