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We report on the epitaxial growth and surface structure of infinite-layer cuprate Sr1-xNdxCuO2 films on SrTiO3(001) substrates by combining ozone-assisted molecular beam epitaxy and in situ scanning tunneling microscopy. Careful substrate…

Superconductivity · Physics 2020-08-14 Jia-Qi Fan , Shu-Ze Wang , Xue-Qing Yu , Rui-Feng Wang , Yan-Ling Xiong , Can-Li Song , Xu-Cun Ma , Qi-Kun Xue

BaBiO3 has lately gained high research attention as a parent material for an interesting family of alloyed compositions with multiple technological applications. In order to grow a variety of structures, a versatile deposition tool such as…

Materials Science · Physics 2025-04-29 Islam Ahmed , Stefan De Gendt , Clement Merckling

Surfaces and interfaces of ferroelectric oxides exhibit enhanced functionality, and therefore serve as a platform for novel nano and quantum technologies. Experimental and theoretical challenges associated with examining the subtle…

Materials Science · Physics 2019-04-01 Maya Barzilay , Tian Qiu , Andrew M. Rappe , Yachin Ivry

The presence of 2D electron gases at surfaces or interfaces in oxide thin films remains a hot topic in condensed matter physics. In particular, BaBiO3 appears as a very interesting system as it was theoretically proposed that its (001)…

Here we report a method to fabricate high quality Bi2Se3 thin films using molecular beam epitaxy with a radio frequency cracker cell as an atomic selenium source. With rates close to exact stoichiometry, optimal layer-by-layer growth of…

Materials Science · Physics 2015-06-05 Li Zhang , Robert Hammond , Merav Dolev , Min Liu , Alexander Palevski , Aharon Kapitulnik

By using first-principles plane wave calculations, we systematically study the electronic properties of the thin film of antimony in (111) orientation. Considering the spin-orbit interaction, for stoichiometric surface, the topological…

Materials Science · Physics 2012-01-11 Shuang-Xi Wang , Ping Zhang , Shu-Shen Li

Atomically resolved scanning tunneling microscopy (STM) and x-ray photoelectron spectroscopy (XPS) are used to gain atomic-scale insights into the heteroepitaxy of lanthanum-strontium manganite (LSMO, La$_{1-x}$Sr$_x$MnO$_{3-{\delta}}$, $x$…

Mesoscale and Nanoscale Physics · Physics 2023-11-28 Giada Franceschi , Renè Heller , Michael Schmid , Ulrike Diebold , Michele Riva

The initial homoepitaxial growth of SrTiO3 on a (\surd13\times\surd13) - R33.7{\deg}SrTiO3(001) substrate surface, which can be prepared under oxide growth conditions, is atomically resolved by scanning tunneling microscopy. The identical…

We report the growth of thin films of Sr1-xCaxRuO3 on SrTiO3 and MgO substrates by metalorganic aerosol deposition. The structure and microstructure is characterized by X-ray diffraction and room-temperature scanning tunnelling microscopy…

Strongly Correlated Electrons · Physics 2010-03-03 M. Schneider , V. Moshnyaga , P. Gegenwart

NiFe$_2$O$_4$ thin films with varying thickness were grown on SrTiO$_3$(001) by reactive molecular beam epitaxy. Soft and hard x-ray photoelectron spectroscopy measurements reveal a homogeneous cation distribution throughout the whole film…

Materials Science · Physics 2020-07-01 J. Rodewald , J. Thien , K. Ruwisch , F. Bertram , K. Kuepper , J. Wollschläger

The growth of SrRuO$_3$ (SRO) thin film with high-crystallinity and low residual resistivity (RR) is essential to explore its intrinsic properties. Here, utilizing the adsorption-controlled growth technique, the growth condition of initial…

Materials Science · Physics 2021-12-28 Uddipta Kar , Akhilesh Kr. Singh , Song Yang , Chun-Yen Lin , Bipul Das , Chia-Hung Hsu , Wei-Li Lee

Whether or not epitaxially grown superconducting films have the same bulk-like superconducting properties is an important concern. We report the structure and the electronic properties of epitaxially grown Ba(Fe1-xCox)2As2 films using…

Superconductivity · Physics 2018-08-01 S. Kim , S. Yi , M. Oh , B. G. Jang , W. Nam , Y. -C. Yoo , M. Lee , H. Jeon , I. Zoh , H. Lee , C. Zhang , K. H. Kim , J. Seo , J. H. Shim , J. S. Chae , Y. Kuk

Hexagonal perovskites are an attractive group of materials due to their various polymorph phases and rich structure-property relationships. BaRuO3 (BRO) is a prototypical hexagonal perovskite, in which the electromagnetic properties are…

Materials Science · Physics 2021-07-16 Sangmoon Yoon , Jong Mok Ok , Sang A Lee , Jegon Lee , Andrew R. Lupini , Woo Seok Choi , Ho Nyung Lee

Bismuth (Bi) having a large atomic number is characterized by the strong spin-orbit coupling (SOC) and is a parent compound of many 3D topological insulators (TIs). The ultrathin Bi films are supposed to be 2D TIs possessing the nontrivial…

Strongly Correlated Electrons · Physics 2023-01-16 Natalia Kovaleva , Dagmar Chvostova , Ladislav Fekete , Alexandr Dejneka

We report a study on the thermodynamic stability and structure analysis of the epitaxial BiFeO3 (BFO) thin films grown on YAlO3 (YAO) substrate. First we observe a phase transition of MC-MA-T occurs in thin sample (<60 nm) with an utter…

Materials Science · Physics 2015-06-04 Heng-Jui Liu , Hsiang-Jung Chen , Wen-I Liang , Chen-Wei Liang , Hsin-Yi Lee , Su-Jien Lin , Ying-Hao Chu

We present time-resolved high energy x-ray diffraction (tr-HEXRD), time-resolved hard x-ray photoelectron spectroscopy (tr-HAXPES) and time-resolved grazing incidence small angle x-ray scattering (tr-GISAXS) data of the reactive molecular…

We explore the potential of Time-Of-Flight Medium Energy Ion Scattering (TOFMEIS) for thin film analysis and analyze possible difficulties in evaluation of experimental spectra. Issues regarding different combinations of composition and…

We report the growth of atomically smooth, single crystalline Bi2Se3 thin films on Si(111) by using molecular beam epitaxy. Scanning tunneling microscopy, low-energy electron diffraction, X-ray photoelectron emission spectroscopy and Raman…

Mesoscale and Nanoscale Physics · Physics 2010-05-03 Guanhua Zhang , Huajun Qin , Jing Teng , Jiandong Guo , Qinlin Guo , Xi Dai , Zhong Fang , Kehui Wu

The surface termination of (100)-oriented LaAlO3 (LAO) single crystals was examined by atomic force microscopy and optimized to produce a single-terminated atomically flat surface by annealing. Then the atomically flat STO film was achieved…

Materials Science · Physics 2012-05-09 Z. Q. Liu , Z. Huang , W. M. Lü , K. Gopinadhan , X. Wang , A. Annadi , T. Venkatesan , Ariando

Rearrangement of atoms due to broken translational symmetries at the surface of SrTiO$_3$ is scarcely debatable in the present day scenario. Actual concern demands to unveil the true structure and precise mechanism responsible for atomic…

Materials Science · Physics 2018-11-08 Adeel Y Abid , Ning Li , Ayaz Arif , Peng Gao