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相关论文: Growth of EuO single crystals at reduced temperatu…

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Single crystals of Cu$_{13}$Ba were successfully grown out of Ba-Cu self flux. Temperature dependent magnetization, $M(T)$, electrical resistivity, $\rho(T)$, and specific heat, $C_p(T)$, data are reported. Isothermal magnetization…

材料科学 · 物理学 2014-01-28 A. Jesche , S. L. Bud'ko , P. C. Canfield

Single crystals of Ba(Fe$_{1-x}$Ru$_x$)$_2$As$_2$, $x<0.37$, have been grown and characterized by structural, magnetic and transport measurements. These measurements show that the structural/magnetic phase transition found in pure…

超导电性 · 物理学 2015-05-19 A. Thaler , N. Ni , A. Kracher , J. Q. Yan , S. L. Bud'ko , P. C. Canfield

Large high-quality single crystals of hole-doped iron-based superconductor (Ba$_{1-x}$K$_x$)Fe$_2$As$_2$ were grown over a broad composition range $0.22 \leq x \leq 1$ by inverted temperature gradient method. We found that high soaking…

Free standing, low strain, single crystals of pure and titanium doped VO$_{2}$ were grown out of an excess of V$_{2}$O$_{5}$ using high temperature solution growth techniques. At $T_{MI} \sim$ 340 K, pure VO$_{2}$ exhibits a clear…

材料科学 · 物理学 2015-02-23 Tai Kong , Morgan W. Masters , Sergey L. Bud'ko , Paul C. Canfield

We report on the single crystal growth of Eu(Pd$_{1-x}$Au$_x$)$_2$Si$_2$, $0< x\leq 0.2$, from a levitating Eu-rich melt using the Czochralski method. Our structural analysis of the samples confirms the ThCr$_2$Si$_2$-type structure as well…

We report a simple, reliable method to grow high quality BaFe$_{2-x}$Co$_x$As$_2$ single crystal samples without using any fluxing agent. The starting materials for the single crystal growth come from well-crystallized polycrystalline…

超导电性 · 物理学 2011-03-23 Changjin Zhang , Lei Zhang , Chuanying Xi , Langsheng Ling , Shun Tan , Yuheng Zhang

We present a comparative, theoretical study of the doping dependence of the critical temperature $T_C$ of the ferromagnetic insulator-metal transition in Gd-doped and O-deficient EuO, respectively. The strong $T_C$ enhancement in…

材料科学 · 物理学 2015-11-25 Tobias Stollenwerk , Johann Kroha

We report the single crystal growth and characterization of EuIn$_2$, a magnetic topological semimetal candidate according to our density functional theory (DFT) calculations. We present results from electrical resistance, magnetization,…

The magnetic ground state of the Eu$^{2+}$ moments in a series of Eu(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$ single crystals grown from the Sn flux has been investigated in detail by neutron diffraction measurements. Combined with the results…

Chemical substitution plays a key role in controlling the electronic and magnetic properties of complex materials. For instance, in EuO, carrier doping can induce a spin-polarized metallic state, colossal magnetoresistance, and…

The effects of Ni doping in Eu(Co{1-x}Ni{x})2As2 single crystals with x =0 to 1 grown out of self flux are investigated via crystallographic, electronic transport, magnetic, and thermal measurements. All compositions adopt the…

强关联电子 · 物理学 2020-08-19 N. S. Sangeetha , Santanu Pakhira , D. H. Ryan , V. Smetana , A. -V. Mudring , D. C. Johnston

Microscopic, structural, transport and thermodynamic measurements of single crystalline Ba(Fe1-xTMx)2As2 (TM = Ni and Cu) series, as well as two mixed TM = Cu / Co series, are reported. All the transport and thermodynamic measurements…

超导电性 · 物理学 2011-11-17 N. Ni , A. Thaler , J. Q. Yan , A. Kracher , E. Colombier , S. L. Bud'ko , P. C. Canfield

Single crystals of Ba0.6K0.4Fe2As2 with excellent quality have been successfully grown without fluxing agent through a simple one-step method for the first time. X-ray diffraction patterns demonstrate that the samples have high crystalline…

超导电性 · 物理学 2015-05-20 Chunlei Wang , Chao Yao , Lei Wang , Yanpeng Qi , Zhaoshun Gao , Dongliang Wang , Xianping Zhang , Yanwei Ma

Two stoichiometric metal-organic frameworks containing Eu$^{3+}$ cations are probed as candidates for photon-based quantum information storage. Synthesis procedures for growing 0.2 mm, rod-shaped Eu(HCOO)$_3$ and 1-3 mm, rhombohedral…

We report the single crystal growth of Ca(Fe1-xCox)2As2 (0 <= x <= 0.082) from Sn flux. The temperature-composition phase diagram is mapped out based on the magnetic susceptibility and electrical transport measurements. Phase diagram of…

超导电性 · 物理学 2015-06-03 Rongwei Hu , Sheng Ran , S. L. Bud'ko , W. E. Straszheim , P. C. Canfield

We report on the growth and characterization of ferromagnetic Gd-doped EuO thin films. We prepared samples with Gd concentrations up to 11% by means of molecular beam epitaxy under distillation conditions, which allows a very precise…

强关联电子 · 物理学 2007-05-23 H. Ott , S. J. Heise , R. Sutarto , Z. Hu , C. F. Chang , H. H. Hsieh , H. -J. Lin , C. T. Chen , L. H. Tjeng

To prevent the loss of K in growing single crystals of Ba1-x Kx Fe2 As2 we developed a rapid heating Sn-flux method. Large single crystals with the optimal superconducting transition temperature TC about 38K were obtained and their…

超导电性 · 物理学 2009-02-21 P. Reuvekamp , F. S. Razavi , C. Hoch , J. S. Kim , R. K. Kremer , A. Simon

Iron-arsenide superconductor Na$_{1-\delta}$FeAs is highly reactive with the environment. Due to the high mobility of Na ions, this reaction affects the entire bulk of the crystals and leads an to effective stoichiometry change. Here we use…

Single crystalline Ba(Fe(1-x)TMx)2As2 (TM = Rh, Pd) series have been grown and characterized by structural, thermodynamic and transport measurements. These measurements show that the structural/magnetic phase transitions, found in pure…

超导电性 · 物理学 2009-07-28 N. Ni , A. Thaler , A. Kracher , J. Q. Yan , S. L. Bud'ko , P. C. Canfield

By using high pressure and high temperature (3.7 GPa, 1120 $^{\circ}$C) synthesis technique, we have grown (Cu,C)Ba$_2$Ca$_3$Cu$_4$O$_{11+\delta}$ single crystals. X-ray diffraction, scanning electron microscopy, resistivity and…

超导电性 · 物理学 2022-01-05 Chengping He , Xue Ming , Jin Si , Xiyu Zhu , Jinhua Wang , Hai-Hu Wen
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