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Magnetoresistance (MR) and magnetization (d.c and a.c) measurements have been carried out on the manganites, (La0.7-2xEux)(Ca0.3Srx)MnO3 (0.05<x<0.15), in the temperature range of 5K-320K. At 5K, an unusually large MR of almost 98% is…

Materials Science · Physics 2009-11-10 D. S. Rana , C. M. Thaker , K. R. Mavani , D. G. Kuberkar , S. K. Malik

The out-of-plane resistance and the resistive upper critical field of BSCCO-2212 single crystals with Tc=91-93 K have been measured in magnetic fields up to 50 T over a wide temperature range. The results are characterised by a positive…

Superconductivity · Physics 2009-10-31 V. N. Zavaritsky , M. Springford , A. S. Alexandrov

We studied the magnetoresistivity of the AM2B2 and A3Rh8B6 (A = Ca, Sr; M = Rh, Ir) compounds within the ranges 1.8<=T<=300 K and 0<=H<=50 kOe. The zero-field resistivity {\rho}0(T) is metallic and follows closely the Bloch-Gr\"uneisen…

Superconductivity · Physics 2011-08-31 Hiroyuki Takeya , Mohammed ElMassalami

The recent discovery of a nonsaturating linear magnetoresistance in several correlated electron systems near a quantum critical point has revealed an interesting interplay between the linear magnetoresistance and the zero-field…

We report large magnetoresistance (MR) at low temperatures in single-crystalline nonmagnetic compounds TaAs$_2$ and NbAs$_2$. Both compounds exhibit parabolic-field-dependent MR larger than $5\times10^3$ in a magnetic field of 9 Tesla at 2…

Materials Science · Physics 2016-05-18 Zhujun Yuan , Hong Lu , Yongjie Liu , Junfeng Wang , Shuang Jia

A hallmark of materials with extremely large magnetoresistance (XMR) is the transformative 'turn-on' temperature behavior: when the applied magnetic field $H$ is above certain value, the resistivity versus temperature $\rho(T)$ curve shows…

Materials Science · Physics 2015-11-05 Y. L. Wang , L. R. Thoutam , Z. L. Xiao , J. Hu , S. Das , Z. Q. Mao , J. Wei , R. Divan , A. Luican-Mayer , G. W. Crabtree , W. K. Kwok

The in-plane magnetoresistance (MR) in La2-xSrxCuO4 films with 0.03 < x < 0.05 has been studied in the temperature range 1.6 K to 100 K, and in magnetic fields up to 14 T, parallel and perpendicular to the CuO2 planes. The behavior of the…

Superconductivity · Physics 2009-11-10 Marta Z. Cieplak , A. Malinowski , S. Guha , M. Berkowski

Angle-dependent magnetoresistance measurements are used to determine the isotropic and anisotropic components of the transport scattering rate in overdoped Tl$_2$Ba$_2$CuO$_{6+\delta}$ for a range of $T_c$ values between 15K and 35K. The…

Recent renewed interest in layered transition metal dichalcogenides stems from the exotic electronic phases predicted and observed in the single- and few-layer limit. Realizing these electronic phases requires preserving the desired…

Materials Science · Physics 2016-06-21 J. M. Woods , J. Shen , P. Kumaravadivel , Y. Pang , Y. Xie , G. A. Pan , M. Li , E. I. Altman , L. Lu , J. J. Cha

Linear magnetoresistance occurs in semiconductors as a consequence of strong electrical disorder and is characterized by nonsaturating magnetoresistance that is proportional to the applied magnetic field. By investigating a disordered…

Mesoscale and Nanoscale Physics · Physics 2015-05-19 H. G. Johnson , S. P. Bennett , R. Barua , L. H Lewis , D. Heiman

The scaling of $H$-linear magnetoresistance in field and temperature was measured in under-doped (x = 0.19) and optimally-doped (x=0.31)~BaFe$_2$(As$_{1-x}$P$_x$)$_2$. We analyze the data based on an orbital model in the presence of…

Despite being a layered, easily-exfoliated compound, copper monotelluride (CuTe) features an unusual quasi-one-dimensional charge density wave below $T_{\rm CDW}\approx335$ K. Within a CuTe layer, the electrical resistivity depends…

Strongly Correlated Electrons · Physics 2023-10-05 Ying Kit Tsui , C. N. Kuo , C. E. Hsu , Wei Zhang , Wenyan Wang , Shanmin Wang , Wing Chi Yu , H. C. Hsueh , C. S. Lue , Swee K. Goh

We report the observation of colossal positive magnetoresistance (MR) in single crystalline, high mobility TaAs2 semimetal. The excellent fit of MR by a single quadratic function of the magnetic field B over a wide temperature range (T =…

Materials Science · Physics 2016-02-19 Desheng Wu , Jian Liao , Wei Yi , Xia Wang , Peigang Li , Hongming Weng , Youguo Shi , Yongqing Li , Jianlin Luo , Xi Dai , Zhong Fang

We report the results of an experimental study of the magnetoresistance $\rho_{xx}$ and $\rho_{xy}$ in two samples of $p$-Si/SiGe with low carrier concentrations $p$=8.2$\times10^{10}$ cm$^{-2}$ and $p$=2$\times10^{11}$ cm$^{-2}$. The…

Mesoscale and Nanoscale Physics · Physics 2015-05-14 I. L. Drichko , I. Yu. Smirnov , A. V. Suslov , O. A. Mironov , D. R. Leadley

We report the observation of a linear magnetoresistance in single crystals and epitaxial thin films of the pyrochlore iridate Bi$_2$Ir$_2$O$_7$. The linear magnetoresistance is positive and isotropic at low temperatures, without any sign of…

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)…

Strongly Correlated Electrons · Physics 2026-04-30 Chunxiang Wu , Shuijin Chen , Tingyu Zhou , Le Liu , Xin Peng , Jianjian Jia , Xinyu Yu , Hangdong Wang , Jinhu Yang , Jianhua Du , Minghu Fang

An analytical model invoking variations in the charge-carrier density is used to generate magnetoresistance curves that are almost indistinguishable from those produced by sophisticated numerical models. This demonstrates that, though…

Superconductivity · Physics 2020-07-08 John Singleton

We report on electronic transport measurements of electrostatically gated nano-devices of the semimetal WTe\textsubscript{2}. High mobility metallic behavior is achieved in the 2D limit by encapsulating thin flakes in an inert atmosphere.…

Mesoscale and Nanoscale Physics · Physics 2017-02-01 Valla Fatemi , Quinn D. Gibson , Kenji Watanabe , Takashi Taniguchi , Robert J. Cava , Pablo Jarillo-Herrero

The magnetic-field, temperature, and angular dependence of the interlayer magnetoresistance of two different quasi-two-dimensional (2D) organic superconductors is reported. For $\kappa$-(BEDT-TTF)$_2$I$_3$ we find a well-resolved peak in…

Strongly Correlated Electrons · Physics 2009-11-07 J. Wosnitza , J. Hagel , J. S. Qualls , J. S. Brooks , E. Balthes , D. Schweitzer , J. A. Schlueter , U. Geiser , J. Mohtasham , R. W. Winter , G. L. Gard

We present magnetoresistivity measurements on the heavy-fermion superconductor UTe$_{2}$ in pulsed magnetic fields $\mu_0H$ up to 68~T and temperatures $T$ from 1.4 to 80~K. Magnetic fields applied along the three crystallographic…