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相关论文: LaFeAsO$_{1-x}$F$_{x}$ thin films: high upper crit…

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Clear evidence of ferromagnetic behavior at temperatures >400 K as well as spin polarization of the charge carriers have been observed in ZnMnO thin films grown on Al2O3 and MgO substrates. The magnetic properties depended on the exact Mn…

Polycrystalline samples of a new superconducting EuAsFeO0.85F0.15 compound with critical temperature Tc=11K were prepared by solid state synthesis. Its electric and magnetic properties have been investigated in magnetic fields from 0.1 to…

To understand the near-interface magnetism in manganites, uniform, ultra-thin films of La_{0.67}Sr_{0.33}MnO_3 were grown epitaxially on single crystal (001) LaAlO_3 and (110) NdGaO_3 substrates. The temperature and magnetic field dependent…

材料科学 · 物理学 2009-10-31 J. Z. Sun , D. W. Abraham , R. A. Rao , C. B. Eom

By laser ablation we prepared thin films of the colossal magnetoresistive compound La_(1-x)Ca_xMnO_3 with doping levels 0.1<x<0.9 on MgO substrates. X-ray diffraction revealed epitaxial growth and a systematic decrease of the lattice…

强关联电子 · 物理学 2009-10-31 G. Jakob , F. Martin , S. Friedrich , W. Westerburg , M. Maier

We report on fully epitaxial FeSe0.5Te0.5 (FST) thin films with high-quality grown on CaF2 (00l) substrate at a low temperature of 300{\deg}C by pulsed laser deposition. The transport Jc of thin films is up to 1.36 MA/cm2 in self-field and…

超导电性 · 物理学 2015-07-03 Pusheng Yuan , Zhongtang Xu , Haitao Zhang , Dongliang Wang , Yanwei Ma , Ming Zhang , Jianqi Li

We present the structural and transport properties of La$_{1-x}$Sr$_x$Co$_{1-y}$Nb$_y$O$_3$ ($y=$ 0.1 and $x=$ 0; $y=$ 0.15 and $x=$ 0.3) thin films grown on (001) orientated single crystalline ceramic substrates to investigate the effect…

材料科学 · 物理学 2020-08-19 Rishabh Shukla , Ajay Kumar , Sandeep Dalal , Akhilesh Pandey , R. S. Dhaka

Thin films of Co2MnSi have been grown on a-plane sapphire substrates from three elemental targets by dc magnetron co-sputtering. These films are single phase, have a strong (110) texture and a saturation magnetization of 4.95 uB/formula…

材料科学 · 物理学 2009-11-10 L. J. Singh , Z. H. Barber , Y. Miyoshi , Y. Bugoslavsky , W. R. Branford , L. F. Cohen

Measurements of magnetization, specific heat, electrical resistivity, Hall effect, and magnetoresistance on single crystalline samples of LaFeAsO grown in a NaAs flux are reported. While this material is known to be a semimetal, the…

超导电性 · 物理学 2015-06-16 C. A. McElroy , J. J. Hamlin , B. D. White , M. A. McGuire , B. C. Sales , M. B. Maple

Stabilized FeSe thin films in ambient pressure with tunable superconductivity would be a promising candidate for superconducting electronic devices yet its superconducting transition temperature (Tc) is below 10 K in bulk materials. By…

We have grown and characterized 30 nm thick YBa$_2$Cu$_3$O$_{7-\delta}$ (YBCO) films, deposited by pulsed laser deposition on both MgO (110) and SrTiO$_3$ (001) substrates, which induce opposite strain to the superconducting layer. By…

超导电性 · 物理学 2018-03-05 Riccardo Arpaia , Eric Andersson , Edoardo Trabaldo , Thilo Bauch , Floriana Lombardi

In order to investigate the effects of in-plane strain on the superconductivity of FeSe, epitaxial thin films of FeSe were fabricated on CaF$_2$ substrates. The films are compressed along the a-axis and their superconducting transition…

超导电性 · 物理学 2013-10-30 Fuyuki Nabeshima , Yoshinori Imai , Masafumi Hanawa , Ichiro Tsukada , Atsutaka Maeda

Epitaxial Fe(Se,Te) thin films were prepared by pulsed laser deposition on (La0.18Sr0.82)(Al0.59Ta0.41)O3 (LSAT), CaF2-buffered LSAT and bare CaF2 substrates, which exhibit an almost identical in-plane lattice parameter. The composition of…

The F doped LaFeAsO, a recently discovered superconductor with the high Tc of 26 K, has been studied by the resistivity, magnetic susceptibility, and heat capacity measurements in the F doping range from 0 to 0.14 (x in LaFeAsO1-xFx). In…

We have employed a new route to synthesize single phase F-doped LaOFeAs compound and confirmed the superconductivity above 20 K in this Fe-based system. We show that the new superconductor has a rather high upper critical field of about 54…

超导电性 · 物理学 2009-11-13 G. F. Chen , Z. Li , G. Li , J. Zhou , D. Wu , J. Dong , W. Z. Hu , P. Zheng , Z. J. Chen , H. Q. Yuan , J. Singleton , J. L. Luo , N. L. Wang

Herein, we report CeIrIn5 thin-film growth on a MgF2 (001) substrate using pulsed laser deposition technique. X-ray diffraction analysis showed that the thin films were either mainly a-axis-oriented (TF1) or a combination of a- and…

超导电性 · 物理学 2022-05-11 Kang Ji-Hoon , Kim JiHyun , Choi WooSeok , Park Sungmin , Park Tuson

Ruthenium dioxide (RuO$_2$) thin films were synthesized by Chemical Solution Deposition (CSD) on silicon substrates using only water and acetic acid as solvents. The microstructure, phase-purity, electrical and optical properties as well as…

Epitaxial Ba0.5Sr0.5TiO3 thin films grown on the (001) LaAlO3 substrates with the ferroelectric transition of about 250K have been investigated by TEM and off-axis electron holography. Cross-sectional TEM observations show that the…

材料科学 · 物理学 2009-11-10 H. F. Tian , H. C. Yu , X. H. Zhu , Y. G. Wang , D. N. Zheng , H. X. Yang , J. Q. Li

The upper critical field $H_{c2}$ of polycrystalline samples of $Ln$O$_{0.5}$F$_{0.5}$BiS$_{2}$ ($Ln$ = La, Nd) at ambient pressure (tetragonal structure) and high pressure (HP) (monoclinic structure) have been investigated via electrical…

超导电性 · 物理学 2017-10-11 Y. Fang , C. T. Wolowiec , A. J. Breindel , D. Yazici , P. -C. Ho , M. B. Maple

A series of c-axis oriented electron-doped high-Tc superconducting La(2-x)CexCuO4 thin films, from heavily underdoped x=0.06 to heavily overdoped x=0.19, have been synthesized by dc magnetron sputtering technique on (100) SrTiO3 substrates.…

超导电性 · 物理学 2009-08-18 B. X. Wu , K. Jin , J. Yuan , H. B. Wang , T. Hatano , B. R. Zhao , B. Y. Zhu

We have determined the resistive upper critical field Hc2 for single crystals of the superconductor Fe1.11Te0.6Se0.4 using pulsed magnetic fields of up to 60T. A rather high zero-temperature upper critical field of mu0Hc2(0) approx 47T is…

超导电性 · 物理学 2010-01-29 M. H. Fang , J. H. Yang , F. F. Balakirev , Y. Kohama , J. Singleton , B. Qian , Z. Q. Mao , H. D. Wang , H. Q. Yuan