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相关论文: Magnetic moment suppression in Ba3CoRu2O9: hybridi…

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In a magnetic metal, the Hall resistance is generally taken to be the sum of the ordinary Hall resistance and the anomalous Hall resistance. Here it is shown that this empirical relation is no longer valid when either the ordinary Hall…

介观与纳米尺度物理 · 物理学 2023-02-21 Jiaji Zhao , Bingyan Jiang , Jinying Yang , Lujunyu Wang , Hengjie Shi , Guang Tian , Zhilin Li , Enke Liu , Xiaosong Wu

Measurements of DC magnetization, AC susceptibility and Hall effect of $Pr_{0.7}Sr_{0.3}MnO_3$ single crystal are reported. The various features are discussed in terms of competing electronic and spin ordering phase transitions, in…

强关联电子 · 物理学 2007-05-23 D. Dimitrov , V. Lovchinov , M. Gospodionov , with Ph. Vanderbemden , M. Ausloos

We observe an unusual tunneling magnetoresistance (TMR) phenomenon in a composite of La$_{2/3}$Sr$_{1/3}$MnO$_{3}$ with CoFe$_{2}$O$_{4}$ where the TMR versus applied magnetic field loop suggests a "negative coercive field". Tracing its…

材料科学 · 物理学 2013-10-08 P. Anil Kumar , D. D. Sarma

We studied in detail the low temperature/high magnetic field phases of URu$_{2}$Si$_{2}$ single crystals with specific heat, magnetocaloric effect, and magnetoresistance in magnetic fields up to 45 T. Data obtained down to 0.5 K, and…

强关联电子 · 物理学 2009-11-07 M. Jaime , K. H. Kim , G. Jorge , S. McCall , J. A Mydosh

We report a comprehensive investigation of the quadruple perovskite Ba$_4$NaRu$_3$O$_{12}$, in which we discover a robust spin-lattice coupled ground state characterized by a long-range antiferromagnetic ordering at $T_N \sim$ 257 K. The…

强关联电子 · 物理学 2025-04-17 Shruti Chakravarty , Pascal Manuel , Antonio Cervellino , Sunil Nair

Magnetization has been measured for polycrystalline samples of LaCo1-xRhxO3 (0 {\leq} x {\leq} 0.9) in order to investigate magnetism induced in the solid solution of two nonmagnetic end phases of LaCoO3 and LaRhO3. It is found that a…

强关联电子 · 物理学 2011-09-13 Shinichiro Asai , Noriyasu Furuta , Yukio Yasui , Ichiro Terasaki

The spin-orbital entangled states are of great interest as they hold exotic phases and intriguing properties. Here we use first-principles calculations to investigate the electronic and magnetic properties of RuI$_{3}$ and RuCl$_{3}$ in…

强关联电子 · 物理学 2023-04-21 Lu Liu , Ke Yang , Guangyu Wang , Di Lu , Yaozhenghang Ma , Hua Wu

Effect of Co, Ru and Cu substitution at B and B' sites on the magnetic and transport properties of LaSrCoRuO$_6$ have been investigated. All the doped compositions crystallize in the monoclinic structure in the space group $P2_1/n$…

强关联电子 · 物理学 2010-11-12 P. S. Ramu Murthy , K. R. Priolkar , P. A. Bhobe , A. Das , P. R. Sarode , A. K. Nigam

Magnetic Weyl semimetals exhibit intriguing transport phenomena due to their non-trivial band structure. Recent experiments in bulk crystals of the shandite-type Co$_3$Sn$_2$S$_2$ have shown that this material system is a magnetic Weyl…

We report the results of a study of the Hall effect and magnetoresistance in single crystals of Sr2RuO4 in which Sr^(2+) has been substituted by La^(3+) (Sr(2-y)La(y)RuO(4)) or Ru^(4+) by Ti^(4+) (Sr(2)Ru(1-x)Ti(x)O(4)). For undoped…

强关联电子 · 物理学 2009-11-10 N. Kikugawa , A. P. Mackenzie , C. Bergemann , Y. Maeno

The magnetization of amorphous DyCo3 and TbCo3 is studied by magnetometry, anomalous Hall effect and magneto-optic Kerr effect to understand the temperature-dependent magnetic structure. A square magnetic hysteresis loop with perpendicular…

Mott insulators based on $4d$ and $5d$ transition-metal ions, where spin-orbit interaction plays a key role, can exhibit various forms of unusual magnetism. A particular example is the antiferromagnet Ca$_2$RuO$_4$ containing $d^4$…

强关联电子 · 物理学 2025-05-16 Jan Revenda , Krzysztof Wohlfeld , Jiří Chaloupka

Transition-metal heterostructures offer the fascinating possibility of controlling orbital degrees of freedom via strain. Here, we investigate theoretically the degree of orbital polarization that can be induced by epitaxial strain in…

强关联电子 · 物理学 2014-08-14 Oleg E. Peil , Michel Ferrero , Antoine Georges

The magnetic and magnetotransport properties of the Sr3Fe2-xCoxO7-d system (0.2 <= x <= 1.0) were systematically investigated. This oxide system exhibits a giant magnetoresistance (GMR) effect at low temperatures, reaching up to 80% in 7 T…

强关联电子 · 物理学 2009-11-11 T. Motohashi , B. Raveau , M. Hervieu , A. Maignan , V. Pralong , N. Nguyen , V. Caignaert

We have experimentally found related anomalies in electrical resistivity, dc and ac magnetic susceptibility, appearing deeply within ferromagnetically ordered state in SrRuO3. Lack of Jahn-Teller distortion in this regime rules out…

强关联电子 · 物理学 2008-06-27 I. M. Bradaric , M. S. Laad , F. V. Kusmartsev , K. Yoshii , S. Okayasu

Fe-K$_{\beta}$ X-ray emission spectroscopy measurements reveal an asymmetric doping dependence of the magnetic moments $\mu_\text{bare}$ in electron- and hole-doped BaFe$_{2}$As$_{2}$. At low temperature, $\mu_\text{bare}$ is nearly…

Recent observations of slow magneto-oscillations in some underdoped cuprate superconductors are one of the most striking discoveries in the field of superconductivity since many probes of underdoped cuprates clearly point to a non…

超导电性 · 物理学 2009-11-05 A. S. Alexandrov , I. O. Thomas

The possibilities of oxygen moment formation and canting in the quasi-1D cuprate Li2CuO2 are investigated using single crystal neutron diffraction at 2 K. The observed magnetic intensities could not be explained without the inclusion of a…

强关联电子 · 物理学 2009-11-10 E. M. L. Chung , G. J. McIntyre , D. McK. Paul , G. Balakrishnan , M. R. Lees

We investigate the 5d transition metal oxide BaOsO$_3$ within a combination of density functional theory (DFT) and dynamical mean-field theory (DMFT), using a matrix-product-state impurity solver. BaOsO$_3$ has 4 electrons in the t$_{2g}$…

强关联电子 · 物理学 2021-04-28 Max Bramberger , Jernej Mravlje , Martin Grundner , Ulrich Schollwöck , Manuel Zingl

Polycrystalline samples of RE2O2CO3 (RE = Pr, Nd, Gd, Tb, Dy, Ho, Er, and Yb) with a unique rare-earth bilayer of triangular lattice were synthesized and studied by DC and AC magnetic susceptibility. Data reveals various magnetic ground…

强关联电子 · 物理学 2024-07-12 Aya N. Rutherford , Chengkun Xing , Haidong Zhou , Qing Huang , Stuart Calder