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We report the transport properties of kagome superconductor CsV$_{3}$Sb$_{5}$ single crystals at magnetic field up to 32 T. The Shubnikov de Haas (SdH) oscillations emerge at low temperature and four frequencies of $F_{\alpha}=$ 27 T,…

We report a systematic investigation, together with a theoretical analysis, of the resistivity and Hall effect in single crystals of Ba(Fe$_{1-x}$Co$_{x}$)$_{2}$As$_{2}$, over a wide doping range. We find a surprisingly great disparity…

Superconductivity · Physics 2015-05-13 Lei Fang , Huiqian Luo , Peng Cheng , Zhaosheng Wang , Ying Jia , Gang Mu , Bing Shen , I. I. Mazin , Lei Shan , Cong Ren , Hai-Hu Wen

The temperature and angle dependent resistivity of Ba(Fe$_{0.75}$Ru$_{0.25}$)$_2$As$_2$ single crystals were measured in magnetic fields up to 14 T. The temperature dependent resistivity with the magnetic field aligned parallel to c-axis…

Superconductivity · Physics 2012-12-27 Jie Xing , Bing Shen , Bin Zeng , Jianzhong Liu , Xiaxin Ding , Zhihe Wang , Huan Yang , Hai-Hu Wen

Bi2Se3 is an important semiconductor thermoelectric material and a prototype topological insulator. Here we report observation of Shubnikov-de Hass (SdH) oscillations accompanied by quantized Hall resistances (Rxy) in highly-doped n-type…

Strongly Correlated Electrons · Physics 2012-04-13 Helin Cao , Jifa Tian , Ireneusz Miotkowski , Tian Shen , Jiuning Hu , Shan Qiao , Yong P. Chen

Structural and physical properties determined by measurements on large single crystals of the anisotropic ferromagnet MnBi are reported. The findings support the importance of magneto-elastic effects in this material. X-ray diffraction…

Materials Science · Physics 2014-11-19 Michael A. McGuire , Huibo Cao , Bryan C. Chakoumakos , Brian C. Sales

In this report, we present the magnetotransport and magnetization properties of LaSbTe single crystals. Magnetic field-induced turn-on behavior and low-temperature resistivity plateau have been observed. By adopting both metal-semiconductor…

Materials Science · Physics 2018-01-30 Ratnadwip Singha , Arnab Pariari , Biswarup Satpati , Prabhat Mandal

The effects of isovalent Ru substitution at the Fe sites of BaFe2-xRuxAs2 are investigated by measuring resistivity and Hall coefficient on high-quality single crystals in a wide range of doping (0 < x < 1.4). Ru substitution weakens the…

Superconductivity · Physics 2015-05-30 M. J. Eom , S. W. Na , C. Hoch , R. K. Kremer , J. S. Kim

We report that it is possible to obtain a series of high-quality crystals of La-doped Bi-2201, of which the transport properties have been believed to be "dirtier" than those of other cuprates. In our crystals, the normal-state transport…

Superconductivity · Physics 2007-05-23 Yoichi Ando , T. Murayama , S. Ono

Topological semimetals characterize a novel class of quantum materials hosting Dirac/Weyl fermions. The important features of topological fermions can be exhibited by quantum oscillations. Here we report the magnetoresistance and…

Within the family of altermagnets, CrSb is a metallic, collinearly ordered material that exhibits particularly strong symmetry-induced spin splitting in its band structure. In this study, we combine electrical magnetotransport measurements…

We report the effect of Ni doping on superconductivity of PdTe. The superconducting parameters like critical temperature (Tc), upper critical field (Hc2) and normalized specific-heat jump are reported for Ni doped Pd1-xNixTe. The samples of…

Superconductivity · Physics 2016-06-22 Reena Goyal , Rajveer Jha , Brajesh Tiwari , Ambesh Dixit , V. P. S. Awana

In non-magnetic bulk materials, inversion symmetry protects the spin degeneracy. If the bulk crystal structure lacks a centre of inversion, however, spin-orbit interactions lift the spin degeneracy, leading to a Rashba metal whose Fermi…

Here, we report the effect of europium (Eu) doping in Bi2Se3 topological insulator (TI) by using different characterization techniques viz. X-ray diffraction (XRD), scanning electron microscopy (SEM) coupled with energy dispersive X-ray…

Materials Science · Physics 2019-09-09 Rabia Sultana , Ganesh Gurjar , Bhasker Gahtori , Satyabrata Patnaik , V. P. S. Awana

We have performed electron transport and ARPES measurements on single crystals of transition metal dipnictide TaAs2 cleaved along the ($\overline{2}$ 0 1) surface which has the lowest cleavage energy. A Fourier transform of the Shubnikov-de…

We present a detailed quantum oscillatory study on the Dirac type-II semimetallic candidates PdTe$_{2}$ and PtTe$_{2}$ \emph{via} the temperature and the angular dependence of the de Haas-van Alphen (dHvA) and Shubnikov-de Haas (SdH)…

Sizable single-crystalline samples of Ca$_{10}$(Pt$_3$As$_8$)((Fe$_{1-x}$Pt$_x$)$_2$As$_2$)$_5$ (the 10-3-8 phase) with 0$\leq x<$0.1 have been grown and systematically characterized via X-Ray diffraction, magnetic, and transport…

Superconductivity · Physics 2012-06-25 Z. J. Xiang , X. G. Luo , J. J. Ying , X. F. Wang , Y. J. Yan , A. F. Wang , P. Cheng , G. J. Ye , X. H. Chen

We investigate the spin diffusion and transport in a graphene monolayer on SiO$_2$ substrate by means of the microscopic kinetic spin Bloch equation approach. The substrate causes a strong Rashba spin-orbit coupling field $\sim 0.15$ meV,…

Mesoscale and Nanoscale Physics · Physics 2011-07-07 P. Zhang , M. W. Wu

Magnetic moments intercalated into layered transition metal dichalcogenides are an excellent system for investigating the rich physics associated with magnetic ordering in a strongly anisotropic, strong spin-orbit coupling environment. We…

Strongly Correlated Electrons · Physics 2015-04-08 Will J. Hardy , Chih-Wei Chen , A. Marcinkova , Heng Ji , Jairo Sinova , D. Natelson , E. Morosan

We report on a systematic study of Hall effect using high quality single crystals of type-II Weyl semimetal WTe2 with the applied magnetic field B//c. The residual resistivity ratio of 1330 and the large magnetoresistance of 1.5\times10^6 %…

Materials Science · Physics 2017-10-03 Rajveer Jha , Ryuji Higashinaka , Tatsuma D. Matsuda , Raquel A. Ribeiro , Yuji Aoki

We studied two BaFe2-xNixAs2 (Ni-doped Ba-122) single crystals at two dfferent doping levels (underdoped and optimally doped) using an optical spectroscopic technique. The underdoped sample shows a magnetic phase transition around 80 K. We…

Superconductivity · Physics 2015-10-15 Seokbae Lee , Kiyoung Choi , Eilho Jung , Seulki Roh , Soohyeon Shin , Tuson Park , Jungseek Hwang
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