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相关论文: BaV3O8: A possible Majumdar-Ghosh system with S=1/…

200 篇论文

Measurements of dc magnetization ($M$) and electrical resistivity ($\rho$) have been carried out as a function of temperature ($T$) for layered oxide Li$_{\rm x}$CoO$_2$ (0.51$\leq$$x$$\leq$1.0) using single crystal specimens. After slow…

强关联电子 · 物理学 2018-11-14 Kiyotaka Miyoshi , Kentaro Manami , Ryo Sasai , Shijo Nishigori , Jun Takeuchi

The SrCr$\_{9p}$Ga$\_{12-9p}$O$\_{19}$ and Ba$\_{2}$Sn$\_{2}$ZnGa$\_{10-7p}$Cr$\_{7p}$O$\_{22}$ compounds are two highly-frustrated magnets possessing a quasi-two-dimensional Kagom\'{e} bilayer of spin 3/2 chromium ions with…

强关联电子 · 物理学 2007-05-23 David Bono , Laurent Limot , Philippe Mendels , Gaston Collin , Nicole Blanchard

We employ the phenomenological Lawrence-Doniach model to compute the contributions of the superconducting fluctuations to the third-harmonic magnetic response, denoted here by $\overline{M_{3}}$, which can be measured in a precise way using…

超导电性 · 物理学 2021-08-11 Fei Chen , Damjan Pelc , Martin Greven , Rafael M. Fernandes

Our measured dielectric constant and mechanical response of multiferroic BiFeO3 indicate four phase transitions below room temperature. Features correlate with those reported at 50K (from a peak in the zero-field-cooled magnetic…

材料科学 · 物理学 2008-06-23 S. A. T. Redfern , C. Wang , J. W. Hong , G. Catalan , J. F. Scott

$^{51}$V NMR studies on CaV2O4 single crystals and $^{17}$O NMR studies on $^{17}$O-enriched powder samples are reported. The temperature dependences of the $^{17}$O NMR line width and nuclear spin-lattice relaxation rate give strong…

强关联电子 · 物理学 2010-11-17 X. Zong , B. J. Suh , A. Niazi , J. Q. Yan , D. L. Schlagel , T. A. Lograsso , D. C. Johnston

Fe2Al5 contains a Fe-Al matrix through which are threaded disordered one-dimensional chains of overlapping Al sites. We report magnetic, nuclear-magnetic-resonance (NMR), and specific-heat measurements addressing its magnetic and…

We have measured magnetization M(T,H), electrical resistivity ro(T,H), thermal conductivity k(T,H), and thermopower S(T,H) of polycrystalline samples of Nd1-xEuxNiO3; 0 <= x <= 0.35; as a function of temperature and external magnetic field.…

强关联电子 · 物理学 2007-05-23 V. B. Barbeta , R. F. Jardim , M. T. Escote , N. R. Dilley

Single crystals of a metal organic complex \ce{(C5H12N)CuBr3} (\ce{C5H12N} = piperidinium, pipH for short) have been synthesized and the structure was determined by single-crystal X-ray diffraction. \ce{(pipH)CuBr3} crystallizes in the…

强关联电子 · 物理学 2014-04-11 B. Y. Pan , Y. Wang , L. J. Zhang , S. Y. Li

Low temperature magnetic properties were investigated on the gold nano particles (GNP) with an average size of 11.5 nm, assembled with molecules of ruthenium complex (Ru0) and phenylboronic acid (B0) by the proton nuclear resonance (1H-NMR)…

介观与纳米尺度物理 · 物理学 2019-03-27 Takayuki Goto , Y. Kitamoto , K. Matsui , H. Kuroe , A. Endo , T. Hashimoto , T. Hayashita , S. Iguchi , T. Sasaki

By performing heat capacity, magnetocaloric effect, torque magnetometry and force magnetometry measurements up to 33 T, we have mapped out the T-H phase diagram of the S = 1/2 spin dimer compound Ba3Cr2O8. We found evidence for…

强关联电子 · 物理学 2009-04-03 A. A. Aczel , Y. Kohama , M. Jaime , L. Balicas , K. Ninios , H. B. Chan , H. A. Dabkowska , G. M. Luke

We present a systematic study of the nematic fluctuations in the iron chalcogenide superconductor Fe$_{1+y}$Te$_{1-x}$Se$_{x}$ ($0 \leq x \leq 0.53$) using the elastoresistivity technique. Near $x = 0$, in proximity to the double-stripe…

We have studied properties of the one-3d-electron cation (Ti 3+, V 4+ ions) under the action of the low-symmetry crystal field in the presence of the spin- orbit coupling. Very anomalous temperature dependences of the magnetic…

强关联电子 · 物理学 2008-10-08 Z. Ropka , Michalski , R. J. Radwanski

The crystal structure and the magnetism of BaMn$_2$O$_3$ have been studied by thermodynamic and by diffraction techniques using large single crystals and powders. BaMn$_2$O$_3$ is a realization of a $S = 5/2$ spin ladder as the magnetic…

强关联电子 · 物理学 2015-05-20 M. Valldor , O. Heyer , A. C. Komarek , A. Senyshyn , M. Braden , T. Lorenz

A Green-function theory for the dynamic spin susceptibility in the square-lattice spin-1/2 antiferromagnetic compass-Heisenberg model employing a generalized mean-field approximation is presented. The theory describes magnetic long-range…

强关联电子 · 物理学 2015-06-08 A. A. Vladimirov , D. Ihle , N. M. Plakida

The results of magnetic susceptibility, electrical resistivity (rho), and heat capacity measurements as a function of temperature are reported for the alloys, Ce2Rh(1-x)Co(x)Si3, crystallizing in an AlB2-derived hexagonal strcture. Ce2RhSi3…

强关联电子 · 物理学 2008-03-06 Swapnil Patil , Kartik K Iyer , K. Maiti , E. V. Sampathkumaran

We report magnetic susceptibility performed on overdoped Bi2Sr2CuO6+d powders as a function of oxygen doping d and temperature T. The decrease of the spin susceptibility chis with increasing T is confirmed. At sufficient high temperature,…

SrHo2O4 is a geometrically frustrated compound because the Ho^3+ ions are arranged in a network of triangles and hexagons and coupled with antiferromagnetic exchange interactions. Powder neutron diffraction measurements show that long-range…

强关联电子 · 物理学 2015-05-30 Olga Young , Laurent C. Chapon , Oleg A. Petrenko

Pronounced anisotropy of magnetic properties and complex magnetic order of a new oxi-halide compound Co7(TeO3)4Br6 has been investigated by powder and single crystal neutron diffraction, magnetization and ac susceptibility techniques.…

材料科学 · 物理学 2013-05-29 M. Prester , I. Zivkovic , O. Zaharko , D. Pajic , P. Tregenna-Piggott , H. Berger

Muon spin rotation and relaxation experiments in the pyrochlore iridate Eu2Ir2O7 yield a well-defined muon spin precession frequency below the metal-insulator/antiferromagnetic transition temperature TM = 120 K, indicative of long-range…

This paper presents structural, detailed magnetic, and exchange bias studies in polycrystalline Ba$_{2}$ScRuO$_{6}$ synthesized at ambient pressure. In contrast to its strontium analogue, this material crystallizes in a 6L hexagonal…

材料科学 · 物理学 2023-04-28 Prachi Mohanty , Sourav Marik , R. P. Singh