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Related papers: Thin films MnGe grown on Si(111)

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Mn doped GaAs thin films were grown using molecular beam epitaxy at high and low substrate temperatures. The elemental concentration depth profiles in the thin films were determined by using Auger electron spectroscopy combined with ion…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 J. F. Xu , P. M. Thibado , C. Awo-Affouda , R. Moore , V. P. LaBella

Chiral magnetic Mn$_x$Fe$_{1-x}$Ge compounds have an antisymmetric exchange interaction that is tunable with the manganese stoichiometric fraction, $x$. Although millimeter-scale, polycrystalline bulk samples of this family of compounds…

Materials Science · Physics 2018-07-25 Emrah Turgut , Hanjong Paik , Kayla Nguyen , David A. Muller , Darrell G. Schlom , Gregory D. Fuchs

We study the underlying chemical, electronic and magnetic properties of a number of magnetite based thin films. The main focus is placed onto NiO/Fe$_3$O$_4$(001) bilayers grown on MgO(001) and Nb-SrTiO$_3$(001) substrates. We compare the…

The presumably unconventional superconductor Beta-FeSe was deposited by radio frequency sputtering and molecular beam epitaxy (MBE) from two elementary sources. Superconducting thin films were grown in (001)-orientation on MgO(100) and…

Superconductivity · Physics 2015-05-12 Eike Venzmer , Alexander Kronenberg , Janek Maletz , Martin Jourdan

We have studied the magneto-optical and magnetotrasnport properties of GaMnAs thin films with high Mn concentrations (x= 12.2 - 21.3%) grown by molecular-beam epitaxy. These heavily Mn-doped GaMnAs films were formed by decreasing the growth…

Materials Science · Physics 2015-06-25 Shinobu Ohya , Kenichi Ohno , Masaaki Tanaka

Skyrmions are localized magnetic spin textures whose stability has been shown theoretically to depend on material parameters including bulk Dresselhaus spin orbit coupling (SOC), interfacial Rashba SOC, and magnetic anisotropy. Here, we…

Materials Science · Physics 2017-03-31 Adam S. Ahmed , Bryan D. Esser , James Rowland , David W. McComb , Roland K. Kawakami

MgB2 thin films were deposited on SiC buffered Si substrates by sequential electron beam evaporation of B-Mg bilayer followed by in-situ annealing. The application of a SiC buffer layer enables the maximum annealing temperature of 830 C.…

Superconductivity · Physics 2009-11-11 S. Chromik , J. Huran , V. Strbik , M. Spankova , I. Vavra , W. Bohne , J. Rohrich , E. Strub , P. Kovac , S. Stancek

We report the synthesis and characterization of thin films of the Weyl semimetal NbAs grown on GaAs (100) and GaAs (111)B substrates. By choosing the appropriate substrate, we can stabilize the growth of NbAs in the (001) and (100)…

We report growth and characterization of epitaxial $\alpha$-Sn thin films grown on CdTe(111)B. Noninvasive techniques verify the film's pseduomorphic growth before fabrication of magnetotransport devices, overcoming ex-situ obstacles on…

Strongly Correlated Electrons · Physics 2020-02-19 Owen Vail , Patrick Taylor , Patrick Folkes , Barbara Nichols , George de Coster

Diluted magnetic semiconductors (DMSs) based on group-IV materials are desirable for spintronic devices compatible with current silicon technology. In this work, amorphous Mn-doped SiGe thin films were first fabricated on Ge substrates by…

Materials Science · Physics 2020-11-10 Huanming Wang , Sen Sun , Jiating Lu , Jiayin Xu , Xiaowei Lv , Yong Peng , Xi Zhang , Yuan Wang , Gang Xiang

Magnetic properties of thin films differs from that of the corresponding bulk materials and show novel physics as a result of their reduced size and dimensionality. Profound changes in magnetic properties can also result with exchange bias…

Materials Science · Physics 2023-02-21 Shivakumar Hunagund , V Santiago , C Castano

Atomically thin PtSe2 films have attracted extensive research interests for potential applications in high-speed electronics, spintronics and photodetectors. Obtaining high quality, single crystalline thin films with large size is critical.…

Using ammonia as nitrogen source for molecular beam epitaxy, the GaN-based diluted magnetic semiconductor Ga1-xMnxN is successfully grown with Mn concentration up to x~6.8% and with p-type conductivity. The films have wurtzite structure…

Thin films of TbMnO3 have been grown on SrTiO3 substrates. The films grow under compressive strain and are only partially clamped to the substrate. This produces remarkable changes in the magnetic properties and, unlike the bulk material,…

Materials Science · Physics 2009-11-13 D. Rubi , C. de Graaf , C. J. M. Daumont , D. Mannix , R. Broer , B. Noheda

Very thick, ~ 40 $\mu$m, clean, and highly textured MgB2 film was effectively grown on an Al2O3 substrate. The fabrication technique is by the hybrid physical-chemical vapor deposition (HPCVD) using B2H6 gas and Mg ingot as the sources. The…

Superconductivity · Physics 2009-11-10 Chinping Chen , Xinfeng Wang , Ying Lu , Zhang Jia , Jing-pu Guo , Xiao-nan Wang , Meng Zhu , Xiangyu Xu , Jun Xu , Qing-rong Feng

We have successfully grown one of the higher manganese silicides, Mn4Si7 thin films on silicon (100) substrates using an ultra-high vacuum deposition with a base pressure of 1x10-9 torr. The thickness of the film was varied from 65-100 nm.…

Materials Science · Physics 2018-04-06 Rajendra P Dulal , Bishnu R Dahal , Ian L Pegg , John Philip

Altermagnets are a recently-discovered class of materials with magnetic ordering that have a zero net magnetization and a momentum-dependent spin splitting in their band structure, arising from a collinear spin arrangement with alternating…

1.8 micrometer-thick magnesium hydride films were synthesized in a single-step process by reactive plasma-assisted sputtering. The MgH2 thin films, which were deposited on two types of flexible surfaces (namely graphite and polyimide foils)…

Applied Physics · Physics 2023-11-03 Huy Le-Quoc , Marie Coste , Ana Lacoste , L. Laversenne

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

Transition metal dichalcogenides (TMDCs), together with other two-dimensional (2D) materials have attracted great interest due to the unique optical and electrical properties of atomically thin layers. In order to fulfill their potential,…