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We report on transport properties of millimetric super-lattices of CoFe nanoparticles surrounded by organic ligands. R(T)s follow R(T) = R_0.exp(T/T_0)^0.5 with T_0 ranging from 13 to 256 K. At low temperature I(V)s follow…

Materials Science · Physics 2015-05-13 R. P. Tan , J. Carrey , C. Desvaux , L. -M. Lacroix , P. Renaud , B. Chaudret , M. Respaud

Magnetic topological materials LnSbTe (Ln = lanthanide) have attracted intensive attention because of the presence of interplay between magnetism, topological, and electron correlations depending on the choices of magnetic Ln elements.…

The work presents experimental results of precision magnetoresistance dr(H,T) measurements obtained for canonical heavy fermion compounds CeAl2, CeAl3, CeCu6 and substitutional solid solutions CeCu6-xAux (x=0.1 and 0.2) and Ce(Al0.95M0.05)2…

Strongly Correlated Electrons · Physics 2007-05-23 N E Sluchanko , A V Bogach , V V Glushkov , S V Demishev , N A Samarin , G S Burhanov , O D Chistiakov , D N Sluchanko

In strange metals, a strong and anomalous scattering effect exists and increases linearly with temperature. In FeSe, we observed that the temperature dependence of resistivity exhibits non-Fermi liquid behavior in two regions below and…

Superconductivity · Physics 2025-03-20 Xinyue Wang , Yue Sun , Wei Wei , Qiang Hou , Nan Zhou , Yufeng Zhang , Zhixiang Shi

We discuss magnetotransport in a low density electron gas coupled to spin fluctuations near and above a ferromagnetic transition. Provided the density is low enough ($n \lesssim 1/\xi^{3}(T)$, with $\xi(T)$ the ferromagnetic correlation…

Materials Science · Physics 2009-10-30 Pinaki Majumdar , Peter Littlewood

We report extremely large magnetoresistance (MR) in an extended temperature regime from 1.5 K to 300 K in non-magnetic binary compounds TaP and NbP. TaP exhibits linear MR around $1.8\times 10^4$ at 2 K in a magnetic field of 9 Tesla, which…

Materials Science · Physics 2015-07-22 Chenglong Zhang , Cheng Guo , Hong Lu , Xiao Zhang , Zhujun Yuan , Ziquan Lin , Junfeng Wang , Shuang Jia

We study the temperature and field dependence of the magnetic and transport properties of the non-Fermi-liquid compound Ce(Ru_{1-x}Rh_x)_2Si_2 at x=0.5. For fields $\lesssim $0.1T the experimental results show signatures of the presence of…

Strongly Correlated Electrons · Physics 2009-10-31 Y. Tabata , D. R. Grempel , M. Ocio , T. Taniguchi , Y. Miyako

Magnetoresistance measurements of highly underdoped superconducting La_{2-x}Sr_xCuO_4 films with $x = 0.051$ and $x = 0.048$, performed in dc magnetic fields up to 20 T and at temperatures down to 40 mK, reveal a magnetic-field induced…

We present the detailed analyses of magneto-conductivities in a Weyl semimetal within Born and self-consistent Born approximations. In the presence of the charged impurities, the linear magnetoresistance can happen when the charge carriers…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 Xiao Xiao , K. T. Law , P. A. Lee

Topological insulators are new kind of Dirac materials that possess bulk insulating and surface conducting behavior. They are basically known for their unique electronic properties at the surface. Here we present the magneto-transport…

High quality strongly correlated two-dimensional (2D) electron systems at low temperatures $T\rightarrow 0$ exhibits an apparent metal-to-insulator transition (MIT) at a large $r_s$ value around 40. We have measured the magnetoresistance of…

Mesoscale and Nanoscale Physics · Physics 2013-07-01 Jian Huang , L. N. Pfeiffer , K. W. West

We report on specific heat and magnetotransport measurements performed on superconducting Cu$_{10\%}$TiSe$_2$ single crystals. We show that superconductivity persists in transport measurements up to magnetic fields $H_R$ well above the…

Superconductivity · Physics 2017-01-13 F. Levy-Bertrand , B. Michon , J. Marcus , C. Marcenat , J. Kačmarčík , T. Klein , H. Cercellier

Resistance as a function of temperature down to 20mK and magnetic fields up to 18T for various carrier concentrations is measured for nanowires made from the SrTiO3/LaAlO3 interface using a hard mask shadow deposition technique. The narrow…

Mesoscale and Nanoscale Physics · Physics 2014-11-21 A. Ron , E. Maniv , D. Graf , J. -H. Park , Y. Dagan

A large magnetoresistance (MR) effect was observed in the layered compounds NdCoAsO and SmCoAsO, in which ferromagnetically ordered itinerant-electrons of Co are sandwiched by localized 4$f$-electrons of $Ln^{3+}$, below…

Strongly Correlated Electrons · Physics 2015-03-19 Hiroto Ohta , Chishiro Michioka , Kazuyoshi Yoshimura

We report magnetoresistance and Hall Effect results for electron-doped films of the high-temperature superconductor La$_{2-x}$Ce$_x$CuO$_4$ (LCCO) for temperatures from 0.7 to 45 K and magnetic fields up to 65 T. For x = 0.12 and 0.13, just…

Strongly Correlated Electrons · Physics 2020-07-28 Tarapada Sarkar , Nicholas R Poniatowski , Joshua S. Higgins , P. R. Mandal , Mun K Chan , Richard L Greene

We use both classical magnetotransport and quantum oscillation measurements to study the thickness evolution of the extremely large magnetoresistance (XMR) material and type-II Weyl semimetal candidate, $\gamma$-MoTe$_2$, protected from…

Materials Science · Physics 2018-07-04 Shazhou Zhong , Archana Tiwari , George Nichols , Fangchu Chen , Xuan Luo , Yuping Sun , Adam W. Tsen

Detailed magneto-transport data on dense wires of $MgB_2$ are reported for applied magnetic fields up to 18 T. The temperature and field dependencies of the electrical resistivity are consistent with $MgB_2$ behaving like a simple metal and…

Superconductivity · Physics 2009-11-07 S. L. Bud'ko , C. Petrovic , G. Lapertot , C. E. Cunningham , P. C. Canfield , M-H. Jung , A. H. Lacerda

We investigate the electronic structure of tungsten ditelluride (WTe$_2$) flakes with different thicknesses in magneto-transport studies. The temperature-dependent resistance and magnetoresistance (MR) measurements both confirm the breaking…

Materials Science · Physics 2021-10-27 Xurui Zhang , Vivek Kakani , John M. Woods , Judy J. Cha , Xiaoyan Shi

Linear magnetoresistance (LMR) is of particular interest for memory, electronics, and sensing applications, especially when it does not saturate over a wide range of magnetic fields. One of its principal origins is local mobility or density…

Transport behavior characterized by a low-temperature electrical resistivity that displays a power-law behavior $\rho(T\to 0) \propto T^s$ with an exponent $s<2$, is commonly observed in magnetic materials in both the magnetic and…

Strongly Correlated Electrons · Physics 2018-10-12 D. Belitz , T. R. Kirkpatrick