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A well known semiconductor Cd3As2 has reentered the spotlight due to its unique electronic structure and quantum transport phenomena as a topological Dirac semimetal. For elucidating and controlling its topological quantum state,…

Recently, Bi2O2Se is discovered as a promising two-dimensional (2D) semiconductor for next generation electronics, due to its moderate bandgap size, high electron mobility and pronounced ambient stability. Meanwhile, it has been predicted…

Materials Science · Physics 2020-02-19 Yekai Song , Zhuojun Li , Hui Li , Shujie Tang , Gang Mu , Lixuan Xu , Wei Peng , Dawei Shen , Yulin Chen , Xiaoming Xie , Mianheng Jiang

We report the first experimental observation of superconductivity in Cd$_3$As$_2$ thin films without application of external pressure. Surface studies suggest that the observed transport characteristics are related to the polycrystalline…

Superconducting epitaxial FeSe0.5Te0.5 thin films were prepared on SrTiO3 (001) substrates by pulsed laser deposition. The high purity of the phase, the quality of the growth and the epitaxy were studied with different experimental…

Using atomic-force microscopy (AFM) and wide-band (0.02-8.5 eV) spectroscopic ellipsometry techniques we investigated morphology and optical properties of Cd3As2 films grown by non-reactive rf magnetron sputtering on two types of oriented…

Materials Science · Physics 2023-01-16 Natalia Kovaleva , Ladislav Fekete , Dagmar Chvostova , Andrei Muratov

PtSe2 is attracting considerable attention as a high mobility two-dimensional material with envisionned applications in microelectronics, photodetection and spintronics. The growth of high quality PtSe2 on insulating substrates with…

Rapid progress of quantum transport study in topological Dirac semimetal, including observations of quantum Hall effect in two-dimensional (2D) Cd$_{\mathrm{3}}$As$_{\mathrm{2}}$ samples, has uncovered even more interesting quantum…

Materials Science · Physics 2019-07-19 Y. Nakazawa , M. Uchida , S. Nishihaya , S. Sato , A. Nakao , J. Matsuno , M. Kawasaki

Pr$_{1-x}$Ca$_x$Ba$_2$Cu$_3$O$_{7-\delta}$($x\approx$0.5) thin films have been grown on SrTiO$_3$ and YSZ substrates by the pulsed laser ablation. The substrate temperature dependence of orientation and superconducting poperties were…

Superconductivity · Physics 2007-05-23 J. Y. Xiang , Z. Y. Liu , J. Li , P. Wang , R. L. Wang , H. P. Yang , Y. Z. Zhang , D. N. Zheng , H. H. Wen , Z. X. Zhao

We report the growth of high-quality epitaxial MgB2 thin films on (1102) Al2O3 and (001) SrTiO3 substrates by using a pulsed laser deposition technique. The thin films grown on Al2O3 substrates show a Tc of 39 K with a sharp transition…

Superconductivity · Physics 2007-05-23 W. N. Kang , Hyeong-Jin Kim , Eun-Mi Choi , C. U. Jung , Sung-Ik Lee

Obtaining high-quality thin films of 5d transition metal oxides is essential to explore the exotic semimetallic and topological phases predicted to arise from the combination of strong electron correlations and spin-orbit coupling. Here, we…

Strongly Correlated Electrons · Physics 2016-08-08 D. J. Groenendijk , N. Manca , G. Mattoni , L. Kootstra , S. Gariglio , Y. Huang , E. van Heumen , A. D. Caviglia

The topological three-dimensional Dirac semimetal Cd3As2 has drawn great attention for the novel physics and promising applications in optoelectronic devices operating in the infrared and THz regimes. Among the extensive studies in the past…

Strongly Correlated Electrons · Physics 2022-06-17 Wenjie Zhang , Yunkun Yang , Peng Suo , Kaiwen Sun , Jun Peng , Xian Lin , Faxian Xiu , Guohong Ma

Fe3Si/Al/Fe3Si/GaAs(001) structures were deposited by molecular-beam epitaxy and characterized by transmission and scanning electron microscopy, and x-ray diffraction. The first Fe3Si film on GaAs(001) is growing epitaxially as (001)…

Materials Science · Physics 2015-12-10 Bernd Jenichen , Uwe Jahn , Andrei Nikulin , Jens Herfort , Holm Kirmse

Stoichiometric, epitaxial LaCrO3 films have been grown on TiO2-terminated SrTiO3(001) substrates by molecular beam epitaxy using O2 as the oxidant. Film growth occurred in a layer-by-layer fashion, giving rise to structurally excellent…

Materials Science · Physics 2015-05-28 L. Qiao , T. C. Droubay , M. E. Bowden , V. Shutthanandan , T. C. Kaspar , S. A. Chambers

We have investigated the atomically-resolved substrate and homoepitaxial thin film surfaces of SrTiO3(001) using low-temperature scanning tunneling microscopy/spectroscopy (STM/STS) combined with pulsed laser deposition (PLD). It was found…

Materials Science · Physics 2015-05-18 Takeo Ohsawa , Katsuya Iwaya , Ryota Shimizu , Tomihiro Hashizume , Taro Hitosugi

Nb-doped SrTiO$_{3}$ epitaxial thin films have been prepared on (001) SrTiO$_{3}$ substrates using pulsed laser deposition. A high substrate temperature ($>1000^{\circ}{C}$) was found to be necessary to achieve 2-dimensional growth. Atomic…

Superconductivity · Physics 2015-06-25 K. S. Takahashi , D. Jaccard , K. Shibuya , T. Ohnishi , M. Lippmaa , J. -M. Triscone

The material termed three-dimensional (3D) Dirac semimetal has attracted great interests recently, since it is an electronic analogue to two-dimensional graphene. Starting from this novel phase, various topologically distinct phases may be…

Strongly Correlated Electrons · Physics 2014-12-17 L. P. He , X. C. Hong , J. K. Dong , J. Pan , Z. Zhang , J. Zhang , S. Y. Li

We have investigated the dimensionality and origin of the magnetotransport properties of LaAlO3 films epitaxially grown on TiO2-terminated SrTiO3(001) substrates. High mobility conduction is observed at low deposition oxygen pressures (PO2…

We report on the successful synthesis of highly conductive PdCoO2 ultrathin films on Al2O3 (0001) by pulsed laser deposition. The thin films grow along the c-axis of the layered delafossite structure of PdCoO2, corresponding to the…

Strongly Correlated Electrons · Physics 2018-04-24 T. Harada , K. Fujiwara , A. Tsukazaki

Thin films of optimally-doped (001)-oriented YBa2Cu3O7-{\delta} are epitaxially integrated on silicon (001) through growth on a single crystalline SrTiO3 buffer. The former is grown using pulsed-laser deposition and the latter is grown on…

Superconductivity · Physics 2017-10-25 K. Ahmadi-Majlan , H. Zhang , X. Shen , M. J. Moghadam , M. Chrysler , P. Conlin , R. Hensley , D. Su , J. Y. T. Wei , J. H. Ngai

High quality vanadium sesquioxide V2O3 films (170-1100 {\AA}) were grown using the pulsed laser deposition technique on (0001)-oriented sapphire substrates, and the effects of film thickness on the lattice strain and electronic properties…

Strongly Correlated Electrons · Physics 2008-01-07 C. Grygiel , Ch. Simon , B. Mercey , W. Prellier , P. Limelette , R. Fresard
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