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相关论文: KAgF3: quasi-one-dimensional magnetism in three-di…

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We present results of local spin density approximation pseudopotential calculations for the ferroelectromagnet, yttrium manganite (YMnO3). The origin of the differences between ferroelectric and non-ferroelectric perovskite manganites is…

材料科学 · 物理学 2015-06-25 Alessio Filippetti , Nicola A. Hill

By means of muon spin rotation and relaxation ($\mu^+$SR) techniques, we have investigated the magnetism of quasi one-dimensional (1D) cobalt oxides $AE_{n+2}$Co$_{n+1}$O$_{3n+3}$ ($AE$=Ca, Sr and Ba, $n$=1, 2, 3, 5 and $\infty$), in which…

强关联电子 · 物理学 2009-11-11 J. Sugiyama , H. Nozaki , J. H. Brewer , E. J. Ansaldo , T. Takami , H. Ikuta , U. Mizutani

The Nd-langasite compound contains planes of magnetic Nd3+ ions on a lattice topologically equivalent to a kagom\'{e} net. The magnetic susceptibility does not reveal any signature of long-range ordering down to 2 K but rather a correlated…

Emergent magnetic states at oxide interfaces arise from the interplay of charge transfer, orbital reconstruction, and dimensional confinement, offering a route to engineered correlated-electron behavior in nanoscale spintronic materials.…

Quasi-one-dimensional iron-based ladders and chains, with the 3$d$ iron electronic density $n = 6$, are attracting considerable attention. Recently, a new iron chain system Ba$_2$FeS$_3$, also with $n = 6$, was prepared under high-pressure…

强关联电子 · 物理学 2021-09-17 Yang Zhang , Ling-Fang Lin , Gonzalo Alvarez , Adriana Moreo , Elbio Dagotto

The magnetic properties of the Mn$_3$Ga$_{(1-x)}$Sn$_x$C, 0 $\le$ x $\le$ 1 antiperovskite compounds have been investigated in detail. Though all compounds of this series crystallize in a cubic structure, the Ga rich (x $\le$ 0.2) compounds…

材料科学 · 物理学 2014-04-08 E. T. Dias , K. R. Priolkar , A. K. Nigam

Density functional theory (DFT) calculations are performed to predict the structural, electronic and magnetic properties of electrically neutral or charged few-atomic-layer (AL) oxides whose parent systems are based on polar perovskite…

Cation displacements, oxygen octahedral tilts, and magnetism of epitaxial, ferrimagnetic, insulating GdTiO3 films sandwiched between cubic SrTiO3 layers are studied using scanning transmission electron microscopy and magnetization…

强关联电子 · 物理学 2013-11-05 Jack Y. Zhang , Clayton A. Jackson , Santosh Raghavan , Jinwoo Hwang , Susanne Stemmer

Polycrystalline rhodium(IV) oxide perovskite SrRhO3 was obtained by high-pressure synthesis techniques, followed by measurements of the magnetic susceptibility, electrical resistivity, and specific heat. The title compound has five…

超导电性 · 物理学 2009-11-07 K. Yamaura , E. Takayama-Muromachi

The $1/4$-filled organic compound, $\delta$-(EDT-TTF-CONMe$_{2}$)$_{2}$AsF$_6$ is a frustrated two-dimensional triangular magnetic system as shown by high-frequency (111.2 and 222.4 GHz) electron spin resonance (ESR) and structural data in…

强关联电子 · 物理学 2016-11-22 B. Náfrádi , A. Antal , T. Fehér , L. F. Kiss , C. Mézière , P. Batail , L. Forró , A. Jánossy

A detailed study of the high-pressure structural properties, lattice dynamics and band structures of perovskite structured fluorides KZnF3, CsCaF3 and BaLiF3 has been carried out by means of density functional theory. The calculated…

材料科学 · 物理学 2016-09-05 Vaitheeswaran G , Kanchana V , Zhang X , Ma Y , Svane A , Christensen NE

Dielectric study on Ca3Mn2O7 features relaxor-like segmented dynamics below the antiferromagnetic ordering. Dipolar relaxations of different origin are spectrally resolved exhibiting distinct H-field alterations. This identifies their…

材料科学 · 物理学 2019-09-10 Pooja Sahlot , Gaurav Sharma , Vasant Sathe , Anand Mohan Awasthi

Ca3CoMnO6 is composed of CoMnO6 chains made up of face-sharing CoO6 trigonal prisms and MnO6 octahedra. The structural, magnetic, and ferroelectric properties of this compound were investigated on the basis of density functional theory…

材料科学 · 物理学 2009-11-13 Y. Zhang , H. J. Xiang , M. -H. Whangbo

We present a detailed de Haas van Alphen effect study of the perovskite CaVO3, offering an unprecedented test of electronic structure calculations in a 3d transition metal oxide. Our experimental and calculated Fermi surfaces are in good…

强关联电子 · 物理学 2009-11-07 I. H. Inoue , C. Bergemann , I. Hase , S. R. Julian

Charge-lattice fluctuations are observed in the layered perovskite manganite LaSr2Mn2O7 by Raman spectroscopy as high as 340 K and with decreasing temperature they become static and form a charge ordered (CO) phase below TCO=210 K. In the…

We investigate the structural and magnetic properties of BaNi$_3$(AsO$_4$)$_2$(OH)$_2$, focusing on its spin-1 kagome lattice and the intricate coexistence of ferromagnetic and antiferromagnetic interactions. Powder x-ray diffraction…

强关联电子 · 物理学 2025-08-14 Yuya Haraguchi , Jun-ichi Yamaura , Akira Matsuo , Koichi Kindo , Hiroko Aruga Katori

The interplay of the electron-phonon interaction and of the double and super exchange magnetic effects is analyzed in the $La_{1-x}Ca_xMnO_3$ perovskites with $0<x<0.5$. By using an analytical variational scheme that allows to treat the…

强关联电子 · 物理学 2009-10-31 V. Cataudella , G. De Filippis , G. Iadonisi

We report $^{23}$Na and $^{59}$Co nuclear magnetic (NMR) and quadrupolar resonance (NQR) studies for the $x=2/3$ phase of the lamellar oxide Na$_{x}$CoO$_{2}$, which allowed us to establish reliably the atomic order of the Na layers and…

强关联电子 · 物理学 2009-11-13 H. Alloul , I. R. Mukhamedshin , T. A. Platova , A. V. Dooglav

Quasiperiodic structures possess long range positional order, but are freed of constraints imposed by translational invariance. For spins interacting via Heisenberg couplings, one may expect therefore to find novel magnetic configurations…

强关联电子 · 物理学 2008-10-15 Anuradha Jagannathan , Attila Szallas

This work is devoted to the analysis of orbital patterns and related to them interatomic magnetic interactions in centrosymmetric monoclinic structures of BiMnO$_3$, which have been recently determined experimentally. First, we set up an…

材料科学 · 物理学 2008-07-11 I. V. Solovyev , Z. V. Pchelkina