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相关论文: Paramagnetic resonance in La2NiMnO6 probed by impe…

200 篇论文

Investigation of the electronic and spin structure in double perovskites is recently attracting significant attention, mainly driven by their unique multifunctional properties and other underlying charge and spin dynamics. Herein, using…

材料科学 · 物理学 2023-07-18 R. Hissariya , R. Sharma , S. K. Mishra

We describe a new experimental technique to investigate coupling effects between different layers or modes in ferromagnetic resonance (FMR). Dual FMR frequencies are excited (2-8 GHz) simultaneously and detected selectively in a broadband…

材料科学 · 物理学 2009-11-11 Yongfeng Guan , William E. Bailey

The magnetic properties of NiTa$_2$O$_6$ were investigated by magnetic susceptibility, specific heat, electron paramagnetic resonance, neutron powder diffraction and pulse field magnetization measurements. Accompanying \textit{ab initio}…

强关联电子 · 物理学 2015-06-18 J. M. Law , H. -J. Koo , M. -H. Whangbo , E. Bruecher , V. Pomjakushin , R. K. Kremer

Epitaxial La2NiMnO6 thin films have been grown on (001)-oriented SrTiO3 using the PLD technique. The thin films are semiconducting and FM with a TC close to 270K, a coercive field of 920Oe, and a saturation magnetization of 5muB per f.u.…

材料科学 · 物理学 2009-11-13 M. P. Singh , C. Grygiel , W. C. Sheets , P. Boullay , M. Hervieu , W. Prellier , B. Mercey , Ch. Simon , B. Raeau

If driven sufficiently strongly, superconducting microresonators exhibit nonlinear behavior including response bifurcation. This behavior can arise from a variety of physical mechanisms including heating effects, grain boundaries or weak…

We report microwave magnetoabsorption (P) at room temperature in R0.6Sr0.4MnO3 (R = Pr and Nd) samples. P as a function of dc magnetic field (-2.5 kOe to +2.5 kOe) was measured for a broad frequency range (f = 0.1 - 4 GHz) of microwave…

材料科学 · 物理学 2020-05-20 A. Chanda , U. Chaudhuri , R. Mahendiran

Here, we report on the structural, electronic, and magnetic properties of a polycrystalline sample of the LaCaCoIrO$_6$ double-perovskite investigated by means of synchrotron x-ray powder diffraction, x-ray absorption spectroscopy, and…

Electron paramagnetic resonance was used to investigate Mn impurity in Bi$_2$Se$_3$ topological insulator grown by the vertical Bridgman method. Mn in high-spin S = 5/2, Mn$^2$$^+$ configuration, was detected regardless of the conductivity…

Lead-free halide double perovskites are promising alternatives to Pb-based semiconductors, but their discovery is challenging because structural formability, thermodynamic stability, band-gap placement, optical-transition strength,…

The field of double perovskites is now advancing to three magnetic elements on the A, B and B$'$ sites. A series of iridium-based double perovskite compounds, $Ln_2$CoIrO$_6$ ($Ln$ = Eu, Tb, Ho) with three magnetic elements were synthesized…

Ba2YIrO6, a Mott insulator, with four valence electrons in Ir5+ d-shell (5d4) is supposed to be non-magnetic, with Jeff = 0, within the atomic physics picture. However, recent suggestions of non-zero magnetism have raised some fundamental…

强关联电子 · 物理学 2019-01-03 Birender Singh , G. A. Cansever , T. Dey , A. Maljuk , S. Wurmehl , B. Büchner , Pradeep Kumar

Magnetic properties of the Ni$_{0.5}$Zn$_{0.5}$Fe$_2$O$_4$ (NZF) spinel ferrite ceramics were studied over a broad frequency range (1 MHz - 50 GHz). Between 10 MHz and 2 GHz, strong temperature-dependent resonance-like magnetic permeability…

材料科学 · 物理学 2025-12-22 M. Kempa , V. Bovtun , V. Kukhar , S. Solopan , A. Belous , O. Vyunov , Y. Yakymenko , S. Kamba

We report on the magnetic entropy change and the critical exponents in the double perovskite manganite Y2NiMnO6 with a ferromagnetic to paramagnetic transition TC=85K. For a magnetic field change of 80kOe, a maximum magnetic entropy change…

材料科学 · 物理学 2015-06-18 G. Sharma , T. S. Tripathi , J. Saha , S Patnaik

Temperature-dependent FAR-infrared reflectivity spectra of partially ordered magnetodielectric La2CoMnO6 is presented, from room temperature up to 675 K. A clear first-ordered structural phase transition (SPT) from a monoclinic structure…

材料科学 · 物理学 2018-02-22 R. X. Silva , A. Nonato , R. L. Moreira , R. M. Almeida , C. W. A. Paschoal

We present results based on local spin density calculations of a computational search for half-metallic (HM) antiferromagnetic (AFM) materials within the class of double perovskite structure oxides LaM'M''O3 that incorporate open shell 3d…

材料科学 · 物理学 2009-10-30 Warren E. Pickett

The synthesis and characterization of the previously unknown material LaCaScIrO$_6$ is reported. LaCaScIrO$_6$ presents a new example of the rare case of a double perovskite with the strongly spin-orbit coupled 5\textit{d}-ion Ir$^{4+}$ as…

Optically active defects often play a crucial role in governing the light emission as well as the electronic properties of materials. Moreover, defect-mediated states in the mid-gap region can trap electrons, thus opening a path for the…

材料科学 · 物理学 2025-01-03 Aprajita Joshi , Sajid Saikia , Shalini Badola , Angshuman Nag , Surajit Saha

Ruthenates, materials with a single magnetic Ruthenium (Ru) atom, often display an exotic array of ground states ranging from superconductivity to altermagnetism. In this work, we investigated the magnetic ground state of a least explored…

Conventional Paramagnetism - a state with finite magnetic moment per ion sans long range magnetic ordering, but with lowering temperature the moment on each ion picks up a particular direction, breaking rotational symmetry, and results into…

Using local-probe magnetic-characterization techniques of muon spin relaxation ($\mu$SR) and electron spin resonance (ESR) we have investigated the Mn-induced magnetism of the wide-bandgap perovskite SrTiO$_3$. Our results clearly…

强关联电子 · 物理学 2014-03-25 Andrej Zorko , Matej Pregelj , Hubertus Luetkens , Anna-Karin Axelsson , Matjaz Valant