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相关论文: Ferromagnetism in Mn-doped Sb2Te

200 篇论文

Within the BaFe2As2 crystal lattice, we partially substitute thallium for barium and report the effects of interlayer coupling in Ba1-xTlxFe2As2 crystals. We demonstrate the unusual effects of magneto-elastic coupling and charge doping in…

超导电性 · 物理学 2016-11-11 A. S. Sefat , L. Li , H. B. Cao , M. A. McGuire , B. Sales , R. Custelcean , D. S. Parker

The highly two-dimensional superconducting system Sr2(Mg$_y$Ti$_{1-y}$)O3FeAs, recently synthesized in the range of 0.2 < y < 0.5, shows an Mg concentration-dependent $T_c$. Reducing the Mg concentration from y=0.5 leads to a sudden…

超导电性 · 物理学 2014-05-20 K. -W. Lee

Thermoelectric performance of SnTe has been found to enhance with isovalent doping of alkaline and transition metal elements where most of these elements have solubility of less than 13%. We propose a strategy of doping rare earth element…

材料科学 · 物理学 2022-12-26 Somnath Acharya , Dibyendu Dey , Tulika Maitra , Ajay Soni , A. Taraphder

The magnetic structure of superconducting Eu(Fe0.82Co0.18)2As2 is unambiguously determined by single-crystal neutron diffraction. A long-range ferromagnetic order of the Eu2+ moments along the c-direction is revealed below the magnetic…

超导电性 · 物理学 2014-05-06 W. T. Jin , S. Nandi , Y. Xiao , Y. Su , O. Zaharko , Z. Guguchia , Z. Bukowski , S. Price , W. H. Jiao , G. H. Cao , Th. Brueckel

The fine control of magnetism and electronic structure is crucial since the interplay between magnetism and band topology can lead to various novel magnetic topological states including axion insulators, magnetic Weyl semimetals and Chern…

强关联电子 · 物理学 2021-08-25 Chaowei Hu , Shang-Wei Lien , Erxi Feng , Scott Mackey , Hung-Ju Tien , Igor I. Mazin , Huibo Cao , Tay-Rong Chang , Ni Ni

Bulk magnetization, transport and neutron scattering measurements were performed to investigate the electronic and magnetic properties of a polycrystalline sample of the newly discovered ferromagnetic superconductor,…

Very sharp magnetization step is observed across the field induced antiferromagnetic to ferromagnetic transition in various doped-CeFe$_2$ alloys, when the measurement is performed below 5K. In the higher temperature regime (T$>$5K) this…

材料科学 · 物理学 2009-11-11 S. B. Roy , M. K. Chattopadhyay , P. Chaddah , A. K. Nigam

We report multiferroic behavior in double perovskite Y2CoMnO6 with ferroelectric transition temperature Tc = 80K. The origin of ferroelectricity is associated with magnetic ordering of Co2+ and Mn4+ moments in a up-up-down-down arrangement.…

材料科学 · 物理学 2015-06-15 G. Sharma , J. Saha , S. Patnaik

A new ternary intermetallic compound, namely, YbMn2Sb2, has been synthesized and its magnetic and electrical transport properties have been studied in the temperature range of 2 to 300 K. This compound crystallizes in a trigonal, La2O2S…

材料科学 · 物理学 2009-11-11 R. Nirmala , S. K. Malik , A. V. Morozkin , K. G. Suresh , H. -D. Kim , J. -Y. Kim , B. -G. Park , S. -J. Oh

Fe-doped III-V ferromagnetic semiconductor (FMS) (In,Fe)Sb is a promising material for spintronic device applications because of the n-type carrier conduction and the ferromagnetism with high Curie temperature (TC > 300 K). To clarify the…

Low temperature M\"ossbauer spectroscopic and magnetization measurements were performed on a crystalline sample of Fe-gluconate. Fe atoms were revealed to exist in two phases i.e. a major (90-94 pct.) and a minor (6-10 pct.). Based on…

化学物理 · 物理学 2020-04-06 Stanisław M. Dubiel , Jan Żukrowski , Maria Bałanda

We present a comprehensive study relating the nanostructure of Ge_0.95Mn_0.05 films to their magnetic properties. The formation of ferromagnetic nanometer sized inclusions in a defect free Ge matrix fabricated by low temperature molecular…

材料科学 · 物理学 2009-11-11 S. Ahlers , D. Bougeard , N. Sircar , G. Abstreiter , A. Trampert , M. Opel , R. Gross

We have investigated the magnetic properties of Mn and Cu substituted SrZnO2 single crystals (SrZn0.99Mn0.01O2 and SrZn0.99Cu0.01O2). We observed signatures of weak ferromagnetism as a sharp increase of magnetic susceptibility below 5 K…

材料科学 · 物理学 2014-10-15 M. R. Rahman , B. Koteswararao , S. H. Huang , Kee Hoon Kim , F. C. Chou

We provide evidence for a finite temperature ferromagnetic transition in 2-dimensions as $H \to 0$ in thin films of $^3$He on graphite, a model system for the study of two-dimensional magnetism. We perform pulsed and CW NMR experiments at…

凝聚态物理 · 物理学 2009-11-07 H. M. Bozler , Yuan Gu , Jinshan Zhang , K. S. White , C. M. Gould

It is found that the polycrystalline NdRu2Ge2 undergoes two successive magnetic transitions at Tt=10 K and TN=19 K. Evidence of metamagnetic transition is detected in the magnetization isotherm data in the antiferromagnetic regime.…

强关联电子 · 物理学 2015-06-11 Bibekananda Maji , K. G. Suresh , A. K. Nigam

The appearance of superconductivity at ambient pressures in the undoped iron pnictide parent compound SrFe2As2 is studied experimentally using several techniques and approaches to aid in understanding the nature of this phase. Low…

超导电性 · 物理学 2010-04-13 K. C. Kirshenbaum , S. R. Saha , N. P. Butch , J. D. Magill , J. Paglione

Single crystals of the Ni-doped FeAs-based superconductor SrFe2-xNixAs2 were grown using a self-flux solution method and characterized via x-ray measurements and low temperature transport, magnetization, and specific heat studies. A doping…

超导电性 · 物理学 2009-06-17 S. R. Saha , N. P. Butch , K. Kirshenbaum , Johnpierre Paglione

Ferromagnetic ordering with a small magnetic moment is found below 14 K from SQUID measurements for the compound Ce4Sb1.5Ge1.5. The transport characteristics of a number of Ce4Sb3-xTx (T = Ge, Si, Sn, Pb, Al) systems were measured at room…

强关联电子 · 物理学 2014-04-01 V. N. Nikiforov , V. V. Pryadun , A. V. Morozkin , V. Yu. Irkhin

Neutron diffraction and small angle scattering experiments have been carried out on the double-isotopic polycrystalline sample (7Li0.82Fe0.18OD)FeSe. Profile refinements of the diffraction data establish the composition and reveal an…

This study investigates the effects of Sb, Ge, and Ga doping in AlFe$_2$B$_2$ on magnetic and magneto-caloric properties. Samples of AlFe$_2$B$_2$ and AlFe$_{1.9}$M$_{0.1}$B$_2$ (M= Ge, Ga and Sb) with 20\% excess Al were synthesized by arc…

材料科学 · 物理学 2025-06-30 R. Preyadarshini , S. Kavita , Ashutosh Kumar , D. Sivaprahasam