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We report the synthesis and physical properties of single crystals of stoichiometric BaNi2As2 that crystalizes in the ThCr2Si2 structure with lattice parameters a = 4.112(4) \AA and c = 11.54(2) \AA. Resistivity and heat capacity show a…

Superconductivity · Physics 2008-08-12 F. Ronning , N. Kurita , E. D. Bauer , B. L. Scott , T. Park , T. Klimczuk , R. Movshovich , J. D. Thompson

Single crystals of Ba(Fe_(1-x)Mn_x)_2As_2, 0<x<0.148, have been grown and characterized by structural, magnetic, electrical transport and thermopower measurements. Although growths of single crystals of Ba(Fe_(1-x)Mn_x)_2As_2 for the full…

Superconductivity · Physics 2015-05-30 A. Thaler , H. Hodovanets , M. S. Torikachvili , S. Ran , A. Kracher , W. Straszheim , J. Q. Yan , E. Mun , P. C. Canfield

In-plane resistivity, magnetoresistance and Hall effect measurements have been conducted on quenched K$_x$Fe$_{2-y}$Se$_2$ single crystals in order to analysis the normal-state transport properties. It is found that the Kohler's rule is…

Superconductivity · Physics 2015-06-22 Xiaxin Ding , Yiming Pan , Huan Yang , Hai-Hu Wen

We report on the magnetic and Hall effect measurements of the magnetic Weyl semimetal, Mn$_{2.94}$Ge (Ge-rich) single crystal. From the magnetic properties study, we identify unusual multiple magnetic transitions below the N$\acute{e}$el…

Materials Science · Physics 2024-02-20 Susanta Ghosh , Achintya Low , Susmita Changdar , Shubham Purwar , Setti Thirupathaiah

We have measured the Hall effect on recently synthesized single crystals of quasi-one-dimensional organic conductor TTF-TCNQ, a well known charge transfer complex that has two kinds of conductive stacks: the donor (TTF) and the acceptor…

Strongly Correlated Electrons · Physics 2015-05-27 Emil Tafra , Matija Čulo , Mario Basletić , Bojana Korin-Hamzić , Amir Hamzić , C. S. Jacobsen

Magnetoresistivity and Hall effect measured in magnetic fields up to B=9T (B||c, J||ab) in electron-doped $Nd_{2-x}$Ce_{x}Cu$O_{4+{\delta}} single crystal films with x = 0.14; 0.15; 0.18 and different oxygen content ({\delta}) were studied…

We report anomalous physical properties of single-crystalline FeSi over a wide temperature range 1.8-400 K. X-ray diffraction, specific heat, and magnetization measurements indicate that the FeSi crystals synthesized in this study are of…

Materials Science · Physics 2018-04-09 Y. Fang , S. Ran , W. Xie , M. B. Maple

In the $R$Al(Si,Ge) ($R$: lanthanides) family, both spatial inversion and time-reversal symmetries are broken. This may offer opportunities to study Weyl-fermion physics in nontrivial spin structures emerging from a noncentrosymmetric…

Strongly Correlated Electrons · Physics 2024-01-22 Naoki Kikugawa , Shinya Uji , Taichi Terashima

Electrical resistivity, magnetoresistivity, and the Hall effect have been studied in a topological semimetal WTe2 single crystal in the temperature range from 12 to 200 K under magnetic fields up to 9 T. It has been found that quadratic…

Strongly Correlated Electrons · Physics 2023-02-02 A. N. Perevalova , S. V. Naumov , V. V. Chistyakov , E. B. Marchenkova , B. M. Fominykh , V. V. Marchenkov

Single crystalline CaFe2As2 and (Ca1-xNax)Fe2As2 polycrystals (0 < x < 0.66) are synthesized and characterized using structural, magnetic, electronic transport, and heat capacity measurements. These measurements show that the…

Superconductivity · Physics 2011-12-02 K. Zhao , Q. Q. Liu , X. C. Wang , Z. Deng , Y. X. Lv , J. L. Zhu , F. Y. Li , C. Q. Jin

We report an optical investigation on the in-plane charge dynamics for Na$_{1-\delta}$FeAs single crystal. A clear optical evidence for the spin-density wave (SDW) gap is observed. As the structural/magnetic transitions are separated in the…

Superconductivity · Physics 2013-05-29 W. Z. Hu , G. Li , P. Zheng , G. F. Chen , J. L. Luo , N. L. Wang

We report on a comprehensive study of the transport, specific heat, magnetic susceptibility and optical spectroscopy on single crystal of Fe$_{1.05}$Te. We confirm that Fe$_{1.05}$Te undergoes a first-order phase transition near 65 K.…

Superconductivity · Physics 2015-05-13 G. F. Chen , Z. G. Chen , J. Dong , W. Z. Hu , G. Li , X. D. Zhang , P. Zheng , J. L. Luo , N. L. Wang

The low-temperature electronic phase diagram of Ba$_{1-x}$Na$_{x}$Fe$_{2}$As$_{2}$, obtained using high-resolution thermal-expansion and specific-heat measurements, is shown to be considerably more complex than previously reported,…

Superconductivity · Physics 2016-01-27 Liran Wang , F. Hardy , A. Böhmer , T. Wolf , P. Schweiss , C. Meingast

We have carried out in-plane resistivity measurements under a uniaxial pressure in NaFe$_{1-x}$Co$_x$As single crystals. A clear distinction of the in-plane resistivity $\rho_a$ and $\rho_b$ with the uniaxial pressure along $b$-axis was…

Superconductivity · Physics 2015-03-25 Qiang Deng , Jianzhong Liu , Jie Xing , Huan Yang , Hai-Hu Wen

Hall effect measurements were performed under pressure and magnetic field up to 2.2 GPa and 16 T on a single crystal of UCoAl. At ambient pressure, the system undergoes a first order metamagnetic transition at the critical field B_m = 0.7 T…

Strongly Correlated Electrons · Physics 2015-06-16 Tristan Combier , Dai Aoki , Georg Knebel , Jacques Flouquet

Single crystals of Na$_{1-\delta}$Fe$_{1-x}$T$_x$As with T = Co, Rh have been grown using a self-flux technique. The crystals were thoroughly characterized by powder X-ray diffraction, magnetic susceptibility and electronic transport with…

We have performed high-pressure, electrical resistivity, and specific heat measurements on CeTe3 single crystals. Two magnetic phases with nonparallel magnetic easy axes were detected in electrical resistivity and specific heat at low…

Strongly Correlated Electrons · Physics 2009-05-02 D. A. Zocco , J. J. Hamlin , T. A. Sayles , M. B. Maple , J. -H. Chu , I. R. Fisher

The effects of off-stoichiometry and elemental substitution on electronic properties of iron-based ladder compound BaFe$_{2}$S$_{3}$ are investigated. Resistivity and magnetization are revealed to be quite sensitive to the stoichiometry of…

Strongly Correlated Electrons · Physics 2015-07-23 Yasuyuki Hirata , Sachiko Maki , Jun-ichi Yamaura , Touru Yamauchi , Kenya Ohgushi

A series of high quality NaFe$_{1-x}$Cu$_x$As single crystals has been grown by a self-flux technique, which were systematically characterized via structural, transport, thermodynamic, and high pressure measurements. Both the structural and…

Superconductivity · Physics 2013-09-30 A. F. Wang , J. J. Lin , P. Cheng , G. J. Ye , F. Chen , J. Q. Ma , X. F. Lu , B. Lei , X. G. Luo , X. H. Chen

We studied the electrical transport on $\beta$-Fe$_{4+\delta}$Se$_{5}$ single-crystal nanowires, exhibiting $\sqrt{5}\times\sqrt{5}$ Fe-vacancy order and mixed valence of Fe. We observed a first-order metal-insulator transition of the…