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The interlayer magnetoresistance $\rho_{zz}$ of the organic metal \cuscn is studied in fields of up to 45 T and at temperatures $T$ from 0.5 K to 30 K. The peak in $\rho_{zz}$ seen in in-plane fields, a definitive signature of interlayer…

Superconductivity · Physics 2009-11-11 John Singleton , PA Goddard , A Ardavan , AI Coldea , SJ Blundell , RD McDonald , S Tozer , JA Schlueter

The electrical resistivity of the unconventional superconductor UTe$_2$ shows very anisotropic behavior in the normal state depending on the current direction. In the present paper we show that the maximum in the resistivity $\rho_c$ for…

Strongly Correlated Electrons · Physics 2024-10-24 G. Knebel , A. Pourret , S. Rousseau , N. Marquardt , D. Braithwaite , F. Honda , D. Aoki , G. Lapertot , W. Knafo , G. Seyfarth , J-P. Brison , J. Flouquet

We report a metal-insulator like transition in single crystalline 3D topological insulator Bi2Te3 at a temperature of 230K in presence of an external magnetic field applied normal to the surface. This transition becomes more prominent at…

Mesoscale and Nanoscale Physics · Physics 2020-06-30 Anand Nivedan , Kamal Das , Sandeep Kumar , Arvind Singh , Sougata Mardanya , Amit Agarwal , Sunil Kumar

The advent of high transverse-field muon spin rotation (TF-muSR) has led to recent muSR investigations of the magnetic-field response of cuprates above the superconducting transition temperature T_c. Here the results of such experiments on…

Superconductivity · Physics 2015-05-13 J. E. Sonier

The LAO/STO interface hosts a two-dimensional electron system that is unusually sensitive to the application of an in-plane magnetic field. Low-temperature experiments have revealed a giant negative magnetoresistance (dropping by 70\%),…

Mesoscale and Nanoscale Physics · Physics 2015-07-06 M. Diez , A. M. R. V. L. Monteiro , G. Mattoni , E. Cobanera , T. Hyart , E. Mulazimoglu , N. Bovenzi , C. W. J. Beenakker , A. D. Caviglia

By using a two-step method, we successfully synthesized the iron based new superconductor LaFeAsO_{0.9}F_{0.1-\delta}$. The resistive transition curves under different magnetic fields were measured, leading to the determination of the upper…

Superconductivity · Physics 2008-09-08 Xiyu Zhu , Huan Yang , Lei Fang , Gang Mu , Hai-Hu Wen

Magnetic and transport properties of $Co Sr_2 Y_{1-x} Ca_x Cu_2 O_7$ ($x=0 \sim 0.4$) system have been investigated. A broad maximum in M(T) curve, indicative of low-dimensional antiferromagnetic ordering originated from $CoO_{1+\delta}$…

Strongly Correlated Electrons · Physics 2007-05-23 X. G. Luo , X. H. Chen , X. Liu , R. T. Wang , Y. M. Xiong , C. H. Wang , G. Y. Wang , X. G. Qiu

We present an experimental study of the anisotropic resistivity of superconducting La(2-x)Ba(x)CuO(4) with x=0.095 and transition temperature Tc=32 K. In a magnetic field perpendicular to the CuO(2) layers, H(perp), we observe that the…

We report a systematic magnetotransport study on high-crystallinity La$_{1-x}$Sr$_{x}$NiO$_2$ (LSNO) thin films with $x=0.20-0.24$. By conducting pulsed-field transport experiment up to 62 T, we reveal two salient features of the…

Superconductivity · Physics 2026-03-19 Yong-Cheng Pan , Tommy Kotte , Toni Helm , Motoki Osada , Atsushi Tsukazaki , Yu-Te Hsu

The mixed-chalcogenide compound TlBiSSe realizes a three-dimensional (3D) Dirac semimetal state. In clean, low-carrier-density single crystals of this material, we found Shubnikov-de Haas oscillations to signify its 3D Dirac nature.…

Materials Science · Physics 2016-01-13 Mario Novak , Satoshi Sasaki , Kouji Segawa , Yoichi Ando

We report measurements of the in-plane and interlayer magnetoresistances of FeSe. The in-plane magnetoresistance $\Delta \rho_{ab}/\rho_{ab}(0)$ for $B \parallel c$ is positive below $T_s$ and increases with decreasing temperature,…

Superconductivity · Physics 2025-10-09 Taichi Terashima , Shinya Uji , Hiroaki Ikeda , Yuji Matsuda , Takasada Shibauchi , Shigeru Kasahara

We report measurements of the resistance of silicon MOSFETs as a function of temperature in high parallel magnetic fields where the 2D system of electrons has been shown to be fully spin-polarized. A magnetic field suppresses the metallic…

Strongly Correlated Electrons · Physics 2009-10-31 K. M. Mertes , Hairong Zheng , S. A. Vitkalov , M. P. Sarachik , T. M. Klapwijk

We report magnetotransport study on type-II Weyl semimetal WP$_2$ single crystals. Magnetoresistance (MR) exhibits a nonsaturating $H^{n}$ field dependence (14,300\% at 2 K and 9 T) whereas systematic violation of Kohler's rule was…

Materials Science · Physics 2017-09-20 Aifeng Wang , D. Graf , Yu Liu , Qianheng Du , Jiabao Zheng , Hechang Lei , C. Petrovic

The results of heat-capacity, magnetic susceptibility, electrical resistivity and magnetoresistance $(\Delta \rho/\rho)$ measurements on the compounds Tb$_2$PdSi$_3$ and Dy$_2$PdSi$_3$, are reported. The results establish that these…

Strongly Correlated Electrons · Physics 2009-10-31 R. Mallik , E. V. Sampathkumaran , P. L. Paulose

Optical conductivity data s(w) of the colossal magneto-resistance (CMR) pyrochlore Tl2Mn2O7 are presented as functions of temperature (T) and externalmagnetic field (B). Upon cooling and upon applying B near the Curietemperature, where the…

Strongly Correlated Electrons · Physics 2009-11-07 H. Okamura , T. Koretsune , M. Matsunami , S. Kimura , T. Nanba , H. Imai , Y. Shimakawa , Y. Kubo

We have used resistivity measurements to study the magnetic phase diagram of the itinerant antiferromagnet FeGe_2 in the temperature range from 0.3->300 K in magnetic fields up to 16 T. In contrast to theoretical predictions, the…

Strongly Correlated Electrons · Physics 2009-10-28 C. P. Adams , T. E. Mason , S. A. M. Mentink , E. Fawcett

Magnetoresistance is the change of a material's electrical resistance in response to an applied magnetic field. In addition to its intrinsic scientific interest, it is a technologically important property, placing it in "Pasteur's quadrant"…

In topological insulators (TIs), metallic surface conductance saturates the insulating bulk resistance with de- creasing temperature, resulting in resistivity plateau at low temperatures as a transport signature originating from metallic…

Materials Science · Physics 2016-07-13 Yi-Yan Wang , Qiao-He Yu , Tian-Long Xia

We study magneto-transport properties in single crystals of TaSb_2, which is a recently discovered topological semimetal. In the presence of magnetic field, the electrical resistivity shows onset of insulating behaviour followed by plateau…

Strongly Correlated Electrons · Physics 2018-04-24 Sudesh , P. Kumar , S. Patnaik

On a high-mobility 2D electron gas we have observed, in strong magnetic fields (omega_{c} tau > 1), a parabolic negative magnetoresistance caused by electron-electron interactions in the regime of k_{B} T tau / hbar ~ 1, which is the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 L. Li , Y. Y. Proskuryakov , A. K. Savchenko , E. H. Linfield , D. A. Ritchie