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相关论文: Large low-temperature magnetoresistance in SrFe2As…

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Rare earth chalcogenides provide a great platform to study exotic quantum phenomena such as superconductivity and charge density waves. Among various interesting properties, the coupling between magnetism and electronic transport has…

We have studied the electron transport in SiO${}_2$(Co)/GaAs and SiO${}_2$(Co)/Si heterostructures, where the SiO${}_2$(Co) structure is the granular SiO${}_2$ film with Co nanoparticles. In SiO${}_2$(Co)/GaAs heterostructures giant…

介观与纳米尺度物理 · 物理学 2015-05-13 L. V. Lutsev , A. I. Stognij , N. N. Novitskii

We report results of 75As nuclear magnetic resonance (NMR) experiments on a self-flux grown high-quality single crystal of SrFe2As2. The NMR spectra clearly show sharp first-order antiferromagnetic (AF) and structural transitions occurring…

强关联电子 · 物理学 2009-06-10 Kentaro Kitagawa , Naoyuki Katayama , Kenya Ohgushi , Masashi Takigawa

The results of a comprehensive study of MnSb$_2$Te$_4$ single crystals are presented. The structure, Raman spectra, low-temperature transport, Hall effect, magnetization, and magnetic susceptibility are studied. It was established that the…

We report measurements on single crystals of orthorhombic CeNiGe2, which is found to exhibit highly anisotropic magnetic and transport properties. The magnetization ratio M(H//b)/M(H^b) at 2 K is observed to be about 18 at 4 T and the…

强关联电子 · 物理学 2009-11-07 M. H. Jung , N. Harrison , A. H. Lacerda , P. G. Pagliuso , J. L. Sarrao , J. D. Thompson

We report the giant carrier mobility in single crystals of FeSb2. Nonlinear field dependence of Hall resistivity is well described with the two-carrier model. Maximum mobility values in high mobility band reach ~10^5 cm^2/Vs at 8 K, and are…

强关联电子 · 物理学 2009-11-13 Rongwei Hu , V. F. Mitrovic , C. Petrovic

After growing successfully high quality VP$_2$ single crystals, we studied systematically their longitudinal $\rho_{xx}(T)$ and Hall resistivity $\rho_{yx}(T)$ at various magnetic fields, combining the electronic band and Fermi surface (FS)…

Magnetoresistance and Hall resistance measurements have been carried out in fastcooled single crystals of Bi2Se3-xTex (x: 0 to 2) in 4 to 300 K temperature range, under magnetic fields up to 15 T. The variation of resistivity with…

材料科学 · 物理学 2016-02-17 E. P. Amaladass , T. R. Devidas , Shilpam Sharma , C. S. Sundar , A. Bharathi , Awadhesh Mani

We report transport measurement in zero and applied magnetic field on a single crystal of NbAs. Transverse and longitudinal magnetoresistance in the plane of this tetragonal structure does not saturate up to 9 T. In the transverse…

材料科学 · 物理学 2015-06-24 N. J. Ghimire , Yongkang Luo , M. Neupane , D. J. Williams , E. D. Bauer , F. Ronning

The mechanism of the peculiar transport properties around the magnetic ordering temperature of semiconducting antiferromagnetic EuCd$_2$P$_2$ is not yet understood. With a huge peak in the resistivity observed above the N\'eel temperature,…

We report pressure-induced superconductivity in a single crystal of CaFe2As2. At atmospheric pressure, this material is antiferromagnetic below 170 K but under an applied pressure of 0.69 GPa becomes superconducting, with a transition…

超导电性 · 物理学 2008-07-18 Tuson Park , Eunsung Park , Hanoh Lee , T. Klimczuk , E D Bauer , F Ronning , J D Thompson

We present electronic transport and magnetic properties of single crystals of semimetallic half-Heusler phase LuPdBi, having theoretically predicted band inversion requisite for nontrivial topological properties. The compound exhibits…

材料科学 · 物理学 2015-03-19 Orest Pavlosiuk , Dariusz Kaczorowski , Piotr Wiśniewski

Magnetic tunnel junctions with the layer sequence Co$_2$Cr$_{0.6}$Fe$_{0.4}$Al/MgO/CoFe were fabricated by magnetron sputtering at room temperature (RT). The samples exhibit a large inverse tunneling magnetoresistance (TMR) effect of up to…

材料科学 · 物理学 2015-06-25 A. D. Rata , H. Braak , D. E. Buergler , C. M. Schneider

We have successfully grown high quality single crystals of SrFe$_2$As$_2$ and A$_{0.6}$K$_{0.4}$Fe$_2$As$_2$(A=Sr, Ba) using flux method. The resistivity, specific heat and Hall coefficient have been measured. For parent compound…

超导电性 · 物理学 2008-12-10 G. F. Chen , Z. Li , J. Dong , G. Li , W. Z. Hu , X. D. Zhang , X. H. Song , P. Zheng , N. L. Wang , J. L. Luo

The temperature dependence of 2D magnetoresistance in an applied in-plane magnetic field is theoretically considered for electrons in Si MOSFETs within the screening theory for long-range charged impurity scattering limited carrier…

无序系统与神经网络 · 物理学 2007-10-09 S. Das Sarma , E. H. Hwang

The behaviors of resistance, magnetoresistance (up to 5 T), and Hall electromotive force (EMF) with varying temperature (from 10 to 300 K) and measuring current (from 10 mkA to 10 mA) are studied for the Si sample with CrSi2…

介观与纳米尺度物理 · 物理学 2014-10-14 V. V. Andrievskii , Yu. F. Komnik , I. B. Berkutov , I. G. Mirzoiev , N. G. Galkin , D. L. Goroshko

We report resistivity measurement under pressure in single crystals of SrFe_2As_2, which is one of the parent materials of Fe-based superconductors. The structural and antiferromagnetic (AFM) transition of T_0 = 198 K at ambient pressure is…

超导电性 · 物理学 2009-11-13 H. Kotegawa , H. Sugawara , H. Tou

Measurements of temperature-dependent in-plane resistivity, $\rho(T)$, were used to determine the upper critical field and its anisotropy in high quality single crystals of stoichiometric iron arsenide superconductor KFe$_2$As$_2$. The…

超导电性 · 物理学 2015-06-15 Yong Liu , M. A. Tanatar , V. G. Kogan , Hyunsoo Kim , T. A. Lograsso , R. Prozorov

Two-dimensional (2D) Dirac bands and flat bands are characteristics of a kagome lattice. However, experimental studies on their electrical transport are few, because three-dimensional (3D) bulk bands of kagome materials, consisting of…

介观与纳米尺度物理 · 物理学 2023-02-21 Jiaji Zhao , Bingyan Jiang , Shen Zhang , Lujunyu Wang , Enke Liu , Zhilin Li , Xiaosong Wu

Presence of Oxygen (O2) has been found by Energy Dispersive X-ray Analysis (EDAX) on the surfaces of flux grown BaFe2As2 single crystals which were kept in air ambience for several months. Transport studies show that the O2 adsorbed…

超导电性 · 物理学 2015-02-20 Nilotpal Ghosh , Santhosh Raj