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Related papers: Electronic structure and optical band gap of CoFe2…

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The material BaBiO$_{3}$ is known for its insulating character. However, for thin films, in the ultra-thin limit, metallicity is expected because BaBiO$_{3}$ is suggested to return to its undistorted cubic phase where the oxygen octahedra…

Strongly Correlated Electrons · Physics 2021-04-01 Rosa Luca Bouwmeester , Alexander Brinkman , Kai Sotthewes

We report the anisotropic changes in the electronic structure of a Kondo semiconductor CeOs$_2$Al$_{10}$ across an anomalous antiferromagnetic ordering temperature ($T_0$) of 29 K, using optical conductivity spectra. The spectra along the…

Strongly Correlated Electrons · Physics 2015-05-19 S. Kimura , T. Iizuka , H. Miyazaki , A. Irizawa , Y. Muro , T. Takabatake

Co2FeAl (CFA) thin films with thickness varying from 10 nm to 115 nm have been deposited on MgO(001) substrates by magnetron sputtering and then capped by Ta or Cr layer. X-rays diffraction (XRD) revealed that the cubic $[001]$ CFA axis is…

The structural and ferroelectric domain variants of highly-strained BiFeO3 films grown on vicinal LaSrAlO4 substrates were studied by piezoelectric force microscopy and high-resolution X-ray reciprocal space mapping. Through symmetry…

Materials Science · Physics 2015-06-04 Lu You , Shintaro Yasui , Xi Zou , Hui Ding , Zuhuang Chen , Weigang Chen , Lang Chen , Hiroshi Funakubo , Junling Wang

Effect of growth orientation on charge- and orbital-ordering (CO-OO) phenomena has been studied for Pr0.5Ca0.5MnO3 epitaxial thin films fabricated on (LaAlO3)0.3-(SrAl0.5Ta0.5O3)0.7 (LSAT) substrates by means of resistivity, synchrotron…

Strongly Correlated Electrons · Physics 2009-10-17 D. Okuyama , M. Nakamura , Y. Wakabayashi , H. Itoh , R. Kumai , H. Yamada , Y. Taguchi , T. Arima , M. Kawasaki , Y. Tokura

We demonstrate the growth of thin films of molybdenum ditelluride and molybdenum diselenide on sapphire substrates by molecular beam epitaxy. In-situ structural and chemical analyses reveal stoichiometric layered film growth with atomically…

Oxide based ferromagnet/semiconductor heterostructures offer substantial advantages for spin electronics. We have grown (111) oriented Fe3O4 thin films and Fe3O4/ZnO heterostructures on ZnO(0001) and Al2O3(0001) substrates by pulsed laser…

Materials Science · Physics 2008-12-30 A. Nielsen , A. Brandlmaier , M. Althammer , W. Kaiser , M. Opel , J. Simon , W. Mader , S. T. B. Goennenwein , R. Gross

We report the physical properties of Co$_2$CrAl Heusler alloy epitaxial thin films grown on single crystalline MgO(001) substrate using pulsed laser deposition technique. The x-ray diffraction pattern in $\theta$-2$\theta$ mode showed the…

Materials Science · Physics 2022-08-10 Guru Dutt Gupt , Rajendra S. Dhaka

We employ molecular beam epitaxy to stabilize Ba2IrO4 thin films and utilize in situ angle-resolved photoemission spectroscopy to investigate the evolution of its electronic structure through the Neel temperature TN. Our measurements…

Strongly Correlated Electrons · Physics 2015-06-22 M. Uchida , Y. F. Nie , P. D. C. King , C. H. Kim , C. J. Fennie , D. G. Schlom , K. M. Shen

Understanding and controlling the electronic structure of thin layers of quantum materials is a crucial first step towards designing heterostructures where new phases and phenomena, including the metal-insulator transition (MIT), emerge.…

Contradictory reports about the electronic and magnetic behavior of bulk Nd0:5Ba0:5MnO3 with uniform disorder exist in the literature. In this work, we investigate the thin films of Nd0:5Ba0:5MnO3, grown by pulsed laser deposition. The…

We report the influence of Ni/Mn ordering on the spin-phonon coupling in multifunctional La2NiMnO6. Three types of films with different levels of structural order, including long-range Ni/Mn cation order, cation disorder, and an admixture…

Materials Science · Physics 2015-05-14 K. D. Truong , M. P. Singh , S. Jandl , P. Fournier

We report the growth, structural and magnetic properties of the less studied Eu-oxide phase, Eu$_3$O$_4$, thin films grown on a Si/SiO$_2$ substrate and Si/SiO$_2$/graphene using molecular beam epitaxy. The X-ray diffraction scans show that…

Materials Science · Physics 2021-07-23 R. O. M. Aboljadayel , A. Ionescu , O. J. Burton , G. Cheglakov , S. Hofmann , C. H. W. Barnes

Present work provides extensive DFT study of TlReO4 using pseudopotential approach for understanding the structural and vibrational properties and full-potential linearized augmented plane wave method for electronic band structure and…

Materials Science · Physics 2019-06-18 S. Mondal , G. Vaitheeswaran , Daniel Errandonea

Materials with a layered Kagome lattice are expected to give rise to novel physics arising from band structures with topological properties, spin liquid behavior and the formation of skyrmions. Until now, most work on Kagome materials has…

The electronic structure and structural evolution of hydrogenated graphene are investigated by Raman spectroscopy with multiple excitations. The excitation energy dependent saturation effect on the ratio of integrated intensities of D and G…

Materials Science · Physics 2010-12-06 Zhiqiang Luo , Ting Yu , Zhenhua Ni , Sanhua Lim , Jingzhi Shang , Hailong Hu , Lei Liu , Zexiang Shen , Jianyi Lin

The altermagnetic materials have emerged as model systems for studying spin split electronic structures, yet controlled epitaxial growth on technologically relevant substrates remains challenging. Among the known candidates, MnTe stands out…

Electronic band structure and optical properties of zinc monochalcogenides with zinc-blende- and wurtzite-type structures were studied using the ab initio density functional method within the LDA, GGA, and LDA+U approaches. Calculations of…

Soft Condensed Matter · Physics 2009-11-13 S. Zh. Karazhanov , P. Ravindran , A. Kjekshus , H. Fjellvag , B. G. Svensson

MnV$_2$O$_4$ in the spinel structure is known to exhibit coupled orbital and spin ordering, and its Raman spectra show interesting anomalies in its low-temperature phase. With a goal to explain this behavior involving coupled spins and…

Materials Science · Physics 2020-05-27 Dibyendu Dey , T. Maitra , U. V. Waghmare , A. Taraphder

TbMnO$_{3}$ films have been grown under compressive strain on (001)-oriented SrTiO$_{3}$ crystals. They have an orthorhombic structure and display the (001) orientation. With increasing thickness, the structure evolves from a more symmetric…