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The anomalous Hall effect (AHE) of ferromagnetic thin films of Sr$_{1-x}$Ca$_{x}$RuO$_3$ (0 $\leq x \leq$ 0.4) is studied as a function of $x$ and temperature $T$. As $x$ increases, both the transition temperature $T_c$ and the…

Materials Science · Physics 2009-11-10 R. Mathieu , A. Asamitsu , H. Yamada , K. S. Takahashi , M. Kawasaki , Z. Fang , N. Nagaosa , Y. Tokura

We have measured the Hall coefficient $R_H$ and the electrical conductivity $\sigma$ of a series of ultrathin indium tin oxide films between 2 and 300 K. A robust $R_H$\,$\propto$\,ln$T$ law is observed in a considerably wide temperature…

Mesoscale and Nanoscale Physics · Physics 2011-08-16 Yu-Jie Zhang , Zhi-Qing Li , Juhn-Jong Lin

Ta-doped SnO$_2$ films with high conductivity and high optical transparency have been successfully fabricated using rf-sputtering method and their electrical transport properties have been investigated. All films reveal degenerate…

Disordered Systems and Neural Networks · Physics 2022-02-17 Zong-Hui Gao , Zi-Xiao Wang , Dong-Yu Hou , Xin-Dian Liu , Zhi-Qing Li

We systematically investigated the temperature behaviors of the electrical conductivity and Hall coefficient of two series of amorphous indium gallium zinc oxides (a-IGZO) films prepared by rf sputtering method. The two series of films are…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 Hui Zhang , Xin-Jian Xie , Xin-Hua Zhang , Zhi-Qing Li

The Hall effect is investigated for eight superconducting Fe(Se_0.5_Te_0.5_) thin films grown on MgO and LaSrAlO_4_ substrates with different transition temperatures (T_c_). The normal Hall coefficients (R_H_) have positive values with…

Superconductivity · Physics 2015-05-14 I. Tsukada , M. Hanawa , S. Komiya , T. Akiike , R. Tanaka , Y. Imai , A. Maeda

Thin films of the high-temperature superconductor HgBa$_2$CaCu$_2$O$_{6+\delta}$ have been prepared on SrTiO$_3$ substrates by pulsed-laser deposition of precursor films and subsequent annealing in mercury-vapor atmosphere. The…

Superconductivity · Physics 2021-02-11 H. Richter , W. Lang , M. Peruzzi , H. Hattmansdorfer , J. H. Durrell , J. D. Pedarnig

We have investigated transport properties of CrO2 thin films deposited on TiO2 and sapphire substrates. The films are good metals down to low temperatures. The residual resistivity is of the order of 6 micro-ohhmcm for films deposited on…

Strongly Correlated Electrons · Physics 2015-06-15 M. S. Anwar , J. Aarts

The Hall conductivities of HgBa_{2}CaCu_{2}O_{6+\delta}and HgBa_{2}Ca_{2}Cu_{3}O_{8+\delta} thin films are investigated for a magnetic field parallel to the c axis. The mixed-state Hall conductivity for these compounds is well described by…

Superconductivity · Physics 2009-10-31 Wan-Seon Kim , W. N. Kang , S. J. Oh , Mun-Seog Kim , Yujoung Bai , Sung-Ik Lee , Chang Ho Choi , H. -C. Ri

We present results of experimental studies of structural, magneto-transport and magnetic properties of CoFe-B-Al-O films deposited onto a glass ceramic substrate by the ion-beam sputtering of the target composed of Co40Fe40B20 and Al2O3…

The Hall coefficient $R_H$ of Sr$_2$RuO$_4$ exhibits a non-monotonic temperature dependence with two sign reversals. We show that this puzzling behavior is the signature of two crossovers which are key to the physics of this material. The…

Strongly Correlated Electrons · Physics 2019-07-16 Manuel Zingl , Jernej Mravlje , Markus Aichhorn , Olivier Parcollet , Antoine Georges

The observation of dissipationless anomalous Hall current is one of the experimental evidences to confirm the intrinsic origin of anomalous Hall effect. To study the origin of anomalous Hall effect in iron, Fe$_{100-x}$(SiO$_{2}$)$_{x}$…

Mesoscale and Nanoscale Physics · Physics 2011-06-01 W. J. Xu , B. Zhang , Z. Wang , W. Li , R. H. Yu , X. X. Zhang

We present a theory of Hall effect in granular systems at large tunneling conductance $g_{T}\gg 1$. Hall transport is essentially determined by the intragrain electron dynamics, which, as we find using the Kubo formula and diagrammatic…

Mesoscale and Nanoscale Physics · Physics 2009-03-25 Maxim Yu. Kharitonov , Konstantin B. Efetov

We have studied the low-temperature electrical transport properties of Pb$_x$(SiO$_2$)$_{1-x}$ ($x$ being the Pb volume fraction) nanogranular films with thicknesses of $\sim$1000 nm and $x$ spanning the dielectric, transitional, and…

Mesoscale and Nanoscale Physics · Physics 2019-03-27 Xiu-Zhi Duan , Zhi-Hao He , Yang Yang , Zhi-Qing Li

We have investigated the temperature and magnetic field dependence of the Hall coefficient of two well-characterized superconducting MgB$_2$ films (T$_{c0}$=38.0 K) in both the normal and superconducting states. Our results show that the…

Superconductivity · Physics 2007-05-23 R. Jin , M. Paranthaman , H. Y. Zhai , H. M. Christen , D. K. Christen , D. Mandrus

In this work, we present the investigation of temperature dependent hall measurement of the ultra thin VO$_2$ films grown on Si/SiO$_2$ substrate. Experimental results suggest that electrons are the predominant carrier both in the…

Materials Science · Physics 2016-09-19 Fangfang Song , B. E. White.

The normal-state Hall coefficient R_H and the in-plane resistivity \rho_{ab} are measured in La-doped Bi_{2}Sr_{2}CuO_{y} (T_c \simeq 13 K) single crystals and La_{2-x}Sr_{x}CuO_{4} thin films by suppressing superconductivity with 61-T…

At sufficiently low temperatures, many quantum effects, such as weak localization, electron-electron interaction (EEI), and Kondo screening, can lead to pronounced corrections to the semiclassical electron transport. Although low…

Mesoscale and Nanoscale Physics · Physics 2019-09-04 Shuai Yang , Zhilin Li , Chaojing Lin , Changjiang Yi , Youguo Shi , Dimitrie Culcer , Yongqing Li

We report the evolution of crystallographic structure, magnetic ordering and electronic transport in thin films of full-Heusler alloy Co$_2$MnSi deposited on (001) MgO with annealing temperatures ($T_A$). By increasing the $T_A$ from…

Materials Science · Physics 2013-06-03 Himanshu Pandey , R. C. Budhani

The Hall resistivity rho_{xy} of a La_{2/3}(Ca,Pb)_{1/3}MnO_3 single crystal has been measured as a function of temperature and field. The overall behavior is similar to that observed previously in thin-films. At 5 K, rho_{xy} is positive…

Strongly Correlated Electrons · Physics 2009-10-31 S. H. Chun , M. B. Salamon , P. D. Han

Motivated by the recently observed unconventional Hall effect in ultra-thin films of ferromagnetic SrRuO$_3$ (SRO) we investigate the effect of strain-induced oxygen octahedral distortion in the electronic structure and anomalous Hall…

Materials Science · Physics 2021-03-31 Kartik Samanta , Marjana Ležaić , Stefan Blügel , Yuriy Mokrousov
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