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相关论文: Magnetic structure and magnetoelastic coupling of …

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We carried out detailed studies of the magnetic structure, magnetoelastic coupling, and thermal properties of EuCrO$_3$ nano-powders from room temperature to liquid helium temperature. Our neutron powder diffraction and X-ray powder…

强关联电子 · 物理学 2016-04-07 M. Taheri , F. S. Razavi , Z. Yamani , R. Flacau , P. G. Reuvekamp , A. Schulz , R. K. Kremer

The coexistence of ferromagnetism and superconductivity in RuSr$_2$GdCu$_2$O$_8$ was reported both from experiments (by Tallon et. al.) and first-principles calculations (by Pickett et. al.). Here we report that our first-principles…

超导电性 · 物理学 2009-10-31 K. Nakamura , K. T. Park , A. J. Freeman , J. D. Jorgensen

An antiferromagnetic ordering in Pb3TeCo3V2O14 takes place through formation of short range correlation regime with T* ~ 10.5 K and succession of second order phase transition at TN1 = 8.9 K and first order phase transition at TN2 = 6.3 K.…

强关联电子 · 物理学 2014-04-01 M. M. Markina , B. V. Mill , E. A. Zvereva , A. V. Ushakov , S. V. Streltsov , A. N. Vasiliev

We performed the detailed microscopic analysis of the inter-layer magnetic couplings for bilayer CrI$_3$. As the first step toward understanding the recent experimental observations and utilizing them for device applications, we estimated…

材料科学 · 物理学 2019-04-10 Seung Woo Jang , Min Yong Jeong , Hongkee Yoon , Siheon Ryee , Myung Joon Han

We have studied the magnetodielectric and magnetoelastic coupling in TbFe3(BO3)4 single crystals by means of capacitance, magnetostriction and Raman spectroscopy measurements. The data reveal strong magnetic field effects on the dielectric…

The structural and magnetic properties of a new series of iridium-based honeycomb lattices with the formula Na3-delta(Na1-xMgx)Ir2O6 (x = 0 to 1) are reported. As x and delta are increased, the honeycomb lattice contracts and the strength…

强关联电子 · 物理学 2014-04-18 D. C. Wallace , C. M. Brown , T. M. McQueen

The magnetic, transport, and structural properties of (Ga,Cr)As are reported. Zincblende Ga$_{1-x}$Cr$_{x}$As was grown by low-temperature molecular beam epitaxy (MBE). At low concentrations, x$\sim$0.1, the materials exhibit unusual…

材料科学 · 物理学 2009-11-07 A. Dakhama , B. Lakshmi , D. Heiman

The orthorhombic compound NdFe$_2$Al$_{10}$ has been studied by powder and single-crystal neutron diffraction. Below $T_N$ = 3.9 K, the Nd$^{3+}$ magnetic moments order in a double-$k$ [$\mathbf{k}_1 = (0, \frac{3}{4}, 0)$, $\mathbf{k}_2 =…

强关联电子 · 物理学 2014-12-31 J. Robert , F. Damay , K. Saito , A. M. Bataille , F. Porcher , G. André , A. Gukasov , J. -M. Mignot , H. Tanida , M. Sera

The manganocuprate compound Gd3Ba2Mn2Cu2O12 (Gd-3222) has been synthesized by conventional solid state reaction method and its magnetic behavior has been studied by dc and ac magnetization (M) and heat capacity (C) measurements as a…

Recently, we reported an anomalous enhancement of the positive magnetoresistance beyond a critical magnetic field in Tb5Si3 in the magnetically ordered state, attributable to 'inverse metamagnetism'. This results in unusual magnetic…

强关联电子 · 物理学 2015-06-03 K. Mukherjee , Kartik K. Iyer , E. V. Sampathkumaran

Electronic structure calculations, using the charge and spin self-consistent Korringa- Kohn-Rostoker (KKR) method, have been performed for several $R$Mn$X$ compounds ($R$ = Mg, Ca, Sr, Ba, Y; $X$ = Si, Ge) of the CeFeSi-type structure. The…

材料科学 · 物理学 2009-11-10 V. Klosek , J. Tobola , A. Verniere , S. Kaprzyk , B. Malaman

The results of dc magnetization, heat capacity, electrical resistivity (rho) and magnetoresistance measurements are reported in detail for the compounds, RCuAs2 for R= Pr, Nd, Sm, Gd, Tb, Dy, Ho, and Er, crystallizing in HfCuSi2-type…

材料科学 · 物理学 2009-11-10 Kausik Sengupta , S. Rayaprol , E. V. Sampathkumaran , Th. Doert , J. P. F. Jemetio

We report single crystal growth and magnetic susceptibility and neutron diffraction studies of the S=1/2 quasi-1D antiferromagnet CaCu2O3. The structure of this material is similar to that of the prototype two-leg spin-ladder compound…

凝聚态物理 · 物理学 2009-10-31 V. Kiryukhin , Y. J. Kim , K. J. Thomas , F. C. Chow , R. W. Erwin , Q. Huang , M. A. Kastner , R. J. Birgeneau

The spiral magnetic structure and underlying spin lattice of BiMnFe2O6 are investigated by low-temperature neutron powder diffraction and density functional theory band structure calculations. In spite of the random distribution of the Mn3+…

We investigated the low-temperature properties of polycrystalline HoNi_2^11B_2C by means of ac-susceptibility and neutron powder diffraction in the temperature range of 1.5 to 10 K and zero magnetic field. A sample with pronounced…

We report the magnetic properties of compounds in the KBaRE(BO3)2 family (RE= Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb), materials with a planar triangular lattice composed of rare earth ions. The samples were analyzed by x-ray diffraction and…

强关联电子 · 物理学 2016-11-28 M. B. Sanders , F. A. Cevallos , R. J. Cava

We study the magnetic structure of the (LaMnO$_3$)$_{2n}$/(SrMnO$_3$)$_n$ superlattices from density-functional calculations. In agreement with the experiments, we find that the magnetism changes with the layer thickness `n'. The reason for…

材料科学 · 物理学 2010-03-10 B. R. K. Nanda , S. Satpathy

The crystalline structure, magnetism, and magnetocaloric effect of a GdCrO$_3$ single crystal grown with the laser-diode-heated floating-zone technique have been studied. The GdCrO$_3$ single crystal crystallizes into an orthorhombic…

We report the results of ac and dc magnetic susceptibility (chi) and electrical resistivity (rho) measurements on the single crystals of Er2PdSi3, crystallizing in an AlB2-derived hexagonal structure, for two orientations H//[0001] and…

We report the high-field induced magnetic phase in single crystal of U(Ru0.92Rh0.08)2Si2. Our neutron study combined with high-field magnetization, shows that the magnetic phase above the first metamagnetic transition at Hc1 = 21.6 T has an…

强关联电子 · 物理学 2017-10-25 K. Prokes , M. Bartkowiak , O. Rivin , O. Prokhnenko , T. Foerster , S. Gerischer , R. Wahle , Y. -K. Huang , J. A. Mydosh