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We report results of a magneto-transport study on thin films of the topological semi-metal candidate PdSb$_{2}$ (PS). We observe a positive correction to magneto-conductivity at low temperatures, which is a signature of weak…

Strongly Correlated Electrons · Physics 2022-02-04 Shama , Aastha Vasdev Dinesh Kumar , Goutam Sheet , Yogesh Singh

We explore the phase coherence of thin films of the topological insulator material Bi2Se2Te grown through pulsed laser deposition (PLD) technique. The films were characterised using various techniques for phase and composition. The films…

Mesoscale and Nanoscale Physics · Physics 2014-11-18 Radha Krishna Gopal , Sourabh Singh , Ramesh Chandra , Chiranjib Mitra

The paper reports on the investigations of the weak localization (WL) effects in 3D polycrystalline thin films of InSb. The films are closely compensated showing the electron concentration n>10^{16} cm^{-3} at the total concentration of the…

Materials Science · Physics 2009-11-07 M. Oszwaldowski , T. Berus , V. K. Dugaev

Recently, it has been theoretically predicted that Cd3As2 is a three dimensional Dirac material, a new topological phase discovered after topological insulators, which exhibits a linear energy dispersion in the bulk with massless Dirac…

Mesoscale and Nanoscale Physics · Physics 2016-01-22 Bo Zhao , Peihong Cheng , Haiyang Pan , Shuai Zhang , Baigeng Wang , Guanghou Wang , Faxian Xiu , Fengqi Song

Electron transport properties of a topological insulator Bi$_2$Se$_3$ thin film are studied in Hall-bar geometry. The film with a thickness of 10 nm is grown by van der Waals epitaxy on fluorophlogopite mica and Hall-bar devices are…

Mesoscale and Nanoscale Physics · Physics 2016-01-26 Yumei Jing , Shaoyun Huang , Kai Zhang , Jinxiong Wu , Yunfan Guo , Hailin Peng , Zhongfan Liu , H. Q. Xu

This research investigates the structural, topological, electrical and optical properties of pulsed laser deposited polycrystalline BiFeO3 thin films on silicon and glass substrate at varying deposition temperatures ranging from 400 degC to…

Materials Science · Physics 2025-03-04 Viswajit R S , Jinesh K. B , Ashok K

An ultradense 2D electron system can be realized by adsorbing PH$_3$ precursor molecules onto an atomically clean Si surface, followed by epitaxial Si overgrowth. By controlling the PH$_3$ coverage the carrier density of such system can…

Condensed Matter · Physics 2007-05-23 M. A. Zudov , C. L. Yang , R. R. Du , T. -C. Shen , J. -Y. Ji , J. S. Kline , J. R. Tucker

By using the pulsed-laser-ablation technique, we have successfully grown the La$_{3}$Ni$_{2}$O$_{7-\delta}$ thin films with $c$-axis orientation perpendicular to the film surface. X-ray diffraction shows that the (00l) peaks can be well…

Superconductivity · Physics 2025-10-10 Yuecong Liu , Mengjun Ou , Haifeng Chu , Huan Yang , Qing Li , Yingjie Zhang , Hai-Hu Wen

Thin films of the pyrochlore iridates along the [111] direction have drawn significant attention to investigate exotic correlated topological phenomena. Here, we report the fabrication of Eu$_2$Ir$_2$O$_7$ thin films via reactive solid…

Strongly Correlated Electrons · Physics 2024-01-10 Xiaofeng Wu , Zhen Wang , Zhaoqing Ding , Zeguo Lin , Mingyu Yang , Minghui Gu , Meng Meng , Fang Yang , Xiaoran Liu , Jiandong Guo

We establish the dominant effect of anisotropic weak localization (WL) in three dimensions associated with a propagative Fermi surface, on the conductivity correction in heavily nitrogen doped ultrananocrystalline diamond (UNCD) films based…

Mesoscale and Nanoscale Physics · Physics 2010-11-25 Kunjal V Shah , Dmitry Churochkin , Zivayi Chiguvare , Somnath Bhattacharyya

We grew single-crystal thin films of a topological crystalline insulator (TCI) SnTe with a smooth surface at the atomic scale by molecular beam epitaxy (MBE). In the magnetoresistance (MR) measurement, we observed both positive and negative…

Mesoscale and Nanoscale Physics · Physics 2014-12-23 Ryota Akiyama , Kazuki Fujisawa , Ryutaro Sakurai , Shinji Kuroda

In this study, we address the phase coherent transport in a sub-micrometer-sized Hall bar made of epitaxial Bi2Se3 thin film by probing the weak antilocalization (WAL) and the magnetoresistance fluctuation below 22 K. The WAL effect is well…

Artificial confinement of electrons by tailoring the layer thickness has turned out to be a powerful tool to harness control over competing phases in nano-layers of complex oxides. We investigate the effect of dimensionality on transport…

Strongly Correlated Electrons · Physics 2021-03-11 Subhadip Jana , Shwetha G. Bhat , B. C. Behera , L. Patra , P. S. Anil Kumar , B. R. K. Nanda , D. Samal

We report magneto-transport studies of topological insulator Bi_{2}Te_{3} thin films grown by pulsed laser deposition. A non-saturating linear-like magneto-resistance (MR) is observed at low temperatures in the magnetic field range from a…

Mesoscale and Nanoscale Physics · Physics 2013-01-18 S. X. Zhang , R. D. McDonald , A. Shekhter , Z. X. Bi , Y. Li , Q. X. Jia , S. T. Picraux

The anomalous magnetoresistance caused by the weak antilocalization (WAL) effects in 200-nm HgTe films is experimentally studied. The film is a high quality 3D topological insulator with much stronger spatial separation of surface states…

Mesoscale and Nanoscale Physics · Physics 2021-02-04 M. L. Savchenko , D. A. Kozlov , Z. D. Kvon , N. N. Mikhailov , S. A. Dvoretsky

The transport properties, resistance, Hall effect, and low T magnetoresistance for very oxygen overdoped nonsuperconducting Bi2Sr2CuO6+d (Bi2201) thin films are reported. From 20 to 300K, the temperature dependence of the resistance is well…

Superconductivity · Physics 2023-04-13 H. Raffy , Z. Z. Li , P. Auban-Senzier

MXenes stand out from other 2D materials because they combine very good electrical conductivity with hydrophilicity, allowing cost-effective processing as thin films. Therefore, there is a high fundamental interest in unraveling the…

Thin films of Pr0.7Ca 0.3MnO3, Nd-0.5Ca0.5MnO3 and Nd0.5Sr0.5MnO3 have been fabricated. by pulse laser deposition. Magnetic and electrical transport properties of these films were compared with their bulk solids. All the films grow in (101)…

Materials Science · Physics 2009-10-31 A. Venimadhav , M. S. Hegde , R. Rawat , I. Das

We have conducted a comprehensive investigation into the magneto-transport properties of few-layer black phosphorus in terms of phase coherence length, phase coherence time, and mobility via weak localization measurement and Hall-effect…

Materials Science · Physics 2016-04-04 Yuchen Du , Adam T. Neal , Hong Zhou , Peide D. Ye

We report the magnetotransport properties up to 7 T in the organic highly conducting Langmuir-Blodgett(LB) films formed by a molecular association of the electroactive donor molecule bis(ethylendioxy)tetrathiafulvalene (BEDO-TTF) and…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Yasuo Ishizaki , Mitsuru Izumi , Hitoshi Ohnuki , Krystyna Kalita-Lipinska , Tatsuro Imakubo , Keiji Kobayashi
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