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Search for "X-ray photoelectron spectroscopy (XPS)" in Full Text gives 243 result(s) in Beilstein Journal of Nanotechnology. Showing first 200.

Investigation of electron-induced cross-linking of self-assembled monolayers by scanning tunneling microscopy

  • Patrick Stohmann,
  • Sascha Koch,
  • Yang Yang,
  • Christopher David Kaiser,
  • Julian Ehrens,
  • Jürgen Schnack,
  • Niklas Biere,
  • Dario Anselmetti,
  • Armin Gölzhäuser and
  • Xianghui Zhang

Beilstein J. Nanotechnol. 2022, 13, 462–471, doi:10.3762/bjnano.13.39

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  • separation [36][37][38][39][40][41][42]. The interactions between aromatic SAMs and electrons have been studied by X-ray photoelectron spectroscopy (XPS), near-edge X-ray-absorption fine-structure (NEXAFS) technique [43][44][45][46][47][48][49], infrared spectroscopy [43][50][51][52], high-resolution
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Published 25 May 2022

Investigation of a memory effect in a Au/(Ti–Cu)Ox-gradient thin film/TiAlV structure

  • Damian Wojcieszak,
  • Jarosław Domaradzki,
  • Michał Mazur,
  • Tomasz Kotwica and
  • Danuta Kaczmarek

Beilstein J. Nanotechnol. 2022, 13, 265–273, doi:10.3762/bjnano.13.21

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  • also investigated to show the gradient distribution of Ti and Cu as a function of the thin film depth. X-ray photoelectron spectroscopy (XPS) studies were performed to determine the chemical state of titanium and copper on the surface of the mixed oxide thin films. A Specs XR-50 X-ray non-monochromatic
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Published 24 Feb 2022

Impact of device design on the electronic and optoelectronic properties of integrated Ru-terpyridine complexes

  • Max Mennicken,
  • Sophia Katharina Peter,
  • Corinna Kaulen,
  • Ulrich Simon and
  • Silvia Karthäuser

Beilstein J. Nanotechnol. 2022, 13, 219–229, doi:10.3762/bjnano.13.16

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  • . Instrumentation X-ray photoelectron spectroscopy (XPS) measurements were conducted with a PHI5000 VersaProbe II using monochromatic Al Kα radiation (1.486 keV). Survey scans (187.5 eV pass energy, 0.8 eV/step) and core level spectra (23.5 eV pass energy, 0.1 eV/step) of the elements C 1s, N 1s, O 1s, S 1s, Ru 3d
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Published 15 Feb 2022

Tin dioxide nanomaterial-based photocatalysts for nitrogen oxide oxidation: a review

  • Viet Van Pham,
  • Hong-Huy Tran,
  • Thao Kim Truong and
  • Thi Minh Cao

Beilstein J. Nanotechnol. 2022, 13, 96–113, doi:10.3762/bjnano.13.7

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  • reports still proposed its photocatalytic behaviors partly based on •O2− species via the combination of experimental physicochemical analyses, such as electron spin resonance (ESR) spectroscopy, active species trapping experiments, valence band X-ray photoelectron spectroscopy (XPS), and diffuse
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Published 21 Jan 2022

Plasmon-enhanced photoluminescence from TiO2 and TeO2 thin films doped by Eu3+ for optoelectronic applications

  • Marcin Łapiński,
  • Jakub Czubek,
  • Katarzyna Drozdowska,
  • Anna Synak,
  • Wojciech Sadowski and
  • Barbara Kościelska

Beilstein J. Nanotechnol. 2021, 12, 1271–1278, doi:10.3762/bjnano.12.94

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  • CrossBeam 540 scanning electron microscope (SEM) operated at 2 kV was used. For microstructure analysis of the plasmonic structures, a TALOS F200X high-resolution transmission electron microscope (HRTEM) was used. The chemical composition of the luminescent layers was investigated by X-ray photoelectron
  • spectroscopy (XPS). Measurement was performed using Omicron Nanotechnology equipment at room temperature and under ultrahigh vacuum conditions, at a pressure below 1.1 × 10−6 Pa. A Mg Kα X-ray source was operated at 15 kV and 300 W. XPS analysis were performed using CASA XPS software package with Shirley
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Published 22 Nov 2021

The effect of cobalt on morphology, structure, and ORR activity of electrospun carbon fibre mats in aqueous alkaline environments

  • Markus Gehring,
  • Tobias Kutsch,
  • Osmane Camara,
  • Alexandre Merlen,
  • Hermann Tempel,
  • Hans Kungl and
  • Rüdiger-A. Eichel

Beilstein J. Nanotechnol. 2021, 12, 1173–1186, doi:10.3762/bjnano.12.87

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  • electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDX), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), Raman spectroscopy, elemental analysis, and inductively coupled plasma optical emission spectrometry (ICP-OES). In addition, the fibres were analysed in terms of their
  • , samples of 1 cm2 were cut from the fibre mats and fixed on a silicon crystal in a rotating sample holder. The scan range was limited to 10° to 80°, scanned with a step width of 0.01°. X-ray photoelectron spectroscopy (XPS) was performed with a Phi5000 VersaProbe II (ULVAC-Phi Inc., USA). Spectra were
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Published 19 Oct 2021

Irradiation-driven molecular dynamics simulation of the FEBID process for Pt(PF3)4

  • Alexey Prosvetov,
  • Alexey V. Verkhovtsev,
  • Gennady Sushko and
  • Andrey V. Solov’yov

Beilstein J. Nanotechnol. 2021, 12, 1151–1172, doi:10.3762/bjnano.12.86

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  • influence the rate of precursor molecule fragmentation. The chosen value of the deposited energy can be verified by comparing the dependence of surface coverage of precursor elements on the electron dose with the experimental data measured by means of X-ray photoelectron spectroscopy (XPS). Electron energy
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Published 13 Oct 2021

Impact of GaAs(100) surface preparation on EQE of AZO/Al2O3/p-GaAs photovoltaic structures

  • Piotr Caban,
  • Rafał Pietruszka,
  • Jarosław Kaszewski,
  • Monika Ożga,
  • Bartłomiej S. Witkowski,
  • Krzysztof Kopalko,
  • Piotr Kuźmiuk,
  • Katarzyna Gwóźdź,
  • Ewa Płaczek-Popko,
  • Krystyna Lawniczak-Jablonska and
  • Marek Godlewski

Beilstein J. Nanotechnol. 2021, 12, 578–592, doi:10.3762/bjnano.12.48

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  • ) and scanning electron microscopy (SEM) examinations were conducted to obtain structural details of the devices. X-ray photoelectron spectroscopy (XPS) with depth profiling was used to examine interface structure and changes in the elemental content and chemical bonds. The photoluminescence (PL
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Published 28 Jun 2021

Boosting of photocatalytic hydrogen evolution via chlorine doping of polymeric carbon nitride

  • Malgorzata Aleksandrzak,
  • Michalina Kijaczko,
  • Wojciech Kukulka,
  • Daria Baranowska,
  • Martyna Baca,
  • Beata Zielinska and
  • Ewa Mijowska

Beilstein J. Nanotechnol. 2021, 12, 473–484, doi:10.3762/bjnano.12.38

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  • Cl modification resulted in the maintenance of the chemical skeleton [43][44][45][46][47]. The chemical composition and relative atomic percentages of the obtained materials were analyzed by X-ray photoelectron spectroscopy (XPS). The XPS spectra revealed that the samples are composed of carbon
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Published 19 May 2021

Structural and optical characteristics determined by the sputtering deposition conditions of oxide thin films

  • Petronela Prepelita,
  • Florin Garoi and
  • Valentin Craciun

Beilstein J. Nanotechnol. 2021, 12, 354–365, doi:10.3762/bjnano.12.29

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  • diffraction (XRD) and X-ray photoelectron spectroscopy (XPS), while the surface topography of the samples was analyzed using scanning electron microscopy (SEM). The optical characteristics were measured for samples with the same composition but obtained with different deposition parameters, such as increasing
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Published 19 Apr 2021

Scanning transmission helium ion microscopy on carbon nanomembranes

  • Daniel Emmrich,
  • Annalena Wolff,
  • Nikolaus Meyerbröker,
  • Jörg K. N. Lindner,
  • André Beyer and
  • Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 222–231, doi:10.3762/bjnano.12.18

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  • between the two cases, and the error of this particular measurement is 9%. To test the validity of the determined thickness and the approach described above, the results from the STIM dark-field imaging are compared to X-ray photoelectron spectroscopy (XPS) and energy-filtered transmission electron
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Published 26 Feb 2021

Fusion of purple membranes triggered by immobilization on carbon nanomembranes

  • René Riedel,
  • Natalie Frese,
  • Fang Yang,
  • Martin Wortmann,
  • Raphael Dalpke,
  • Daniel Rhinow,
  • Norbert Hampp and
  • Armin Gölzhäuser

Beilstein J. Nanotechnol. 2021, 12, 93–101, doi:10.3762/bjnano.12.8

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  • histidine-tag at the extracellular side of a PM mutant (c-His PM). The functionalization and the resulting hybrid membrane were examined by atomic force microscopy (AFM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), confocal laser scanning microscopy (CLSM), and infrared
  • . Afterwards the sample was rinsed with ethanol, dried in a stream of nitrogen, and stored under argon gas. Sample characterization X-ray photoelectron spectroscopy (XPS) has been conducted in an Omicron Multiprobe UHV system (Scienta Omicron GmbH, Taunusstein, Germany) using monochromatic Al Kα irradiation, a
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Published 22 Jan 2021

Free and partially encapsulated manganese ferrite nanoparticles in multiwall carbon nanotubes

  • Saja Al-Khabouri,
  • Salim Al-Harthi,
  • Toru Maekawa,
  • Mohamed E. Elzain,
  • Ashraf Al-Hinai,
  • Ahmed D. Al-Rawas,
  • Abbsher M. Gismelseed,
  • Ali A. Yousif and
  • Myo Tay Zar Myint

Beilstein J. Nanotechnol. 2020, 11, 1891–1904, doi:10.3762/bjnano.11.170

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  • ) overnight. X-ray photoelectron spectroscopy (XPS, Omicron Nanotechnology) was employed with a monochromatic Al Kα radiation (hν = 1486.6 eV), with a source voltage of 15 kV and an emission current of 20 mA. Scans were carried out at a base pressure of 2 × 10−8 Pa. A wide scan was recorded at a constant
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Published 29 Dec 2020

Unravelling the interfacial interaction in mesoporous SiO2@nickel phyllosilicate/TiO2 core–shell nanostructures for photocatalytic activity

  • Bridget K. Mutuma,
  • Xiluva Mathebula,
  • Isaac Nongwe,
  • Bonakele P. Mtolo,
  • Boitumelo J. Matsoso,
  • Rudolph Erasmus,
  • Zikhona Tetana and
  • Neil J. Coville

Beilstein J. Nanotechnol. 2020, 11, 1834–1846, doi:10.3762/bjnano.11.165

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  • , and X-ray photoelectron spectroscopy (XPS) were used to elucidate the morphological and textural features, optoelectronic properties, and elemental composition of the core–shell nanomaterials. These core–shell nanostructures were also employed as catalysts in a model reaction, that is, the
  • hydroxy groups bonded to nickel atoms (δ(NiO–H) band) in NiPS as multiple peaks were recorded between 630 and 710 cm−1 [57]. XPS analysis of mSiO2@NiPS and mSiO2@NiPS/TiO2 X-ray photoelectron spectroscopy (XPS) was used to study the surface composition of mSiO2@NiPS and mSiO2@NiPS/TiO2. The complete scans
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Published 09 Dec 2020

Self-standing heterostructured NiCx-NiFe-NC/biochar as a highly efficient cathode for lithium–oxygen batteries

  • Shengyu Jing,
  • Xu Gong,
  • Shan Ji,
  • Linhui Jia,
  • Bruno G. Pollet,
  • Sheng Yan and
  • Huagen Liang

Beilstein J. Nanotechnol. 2020, 11, 1809–1821, doi:10.3762/bjnano.11.163

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  • energy-dispersive X-ray spectroscopy (EDX) were carried out on a FEI Tecnia G2 F20 high-resolution transmission electron microscope operating at 200 kV. The surface composition of the samples was analyzed by X-ray photoelectron spectroscopy (XPS) on a ESCALAB 250Xi electron energy spectrometer using Al
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Published 02 Dec 2020

Electron beam-induced deposition of platinum from Pt(CO)2Cl2 and Pt(CO)2Br2

  • Aya Mahgoub,
  • Hang Lu,
  • Rachel M. Thorman,
  • Konstantin Preradovic,
  • Titel Jurca,
  • Lisa McElwee-White,
  • Howard Fairbrother and
  • Cornelis W. Hagen

Beilstein J. Nanotechnol. 2020, 11, 1789–1800, doi:10.3762/bjnano.11.161

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  • for complete precursor decomposition [14]. Electron-induced decomposition of adsorbed Pt(CO)2Cl2 has been previously studied using X-ray photoelectron spectroscopy (XPS) and mass spectrometry, and some deposits were produced in the ultrahigh vacuum (UHV) environment of an Auger electron spectroscopy
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Published 27 Nov 2020

PEG/PEI-functionalized single-walled carbon nanotubes as delivery carriers for doxorubicin: synthesis, characterization, and in vitro evaluation

  • Shuoye Yang,
  • Zhenwei Wang,
  • Yahong Ping,
  • Yuying Miao,
  • Yongmei Xiao,
  • Lingbo Qu,
  • Lu Zhang,
  • Yuansen Hu and
  • Jinshui Wang

Beilstein J. Nanotechnol. 2020, 11, 1728–1741, doi:10.3762/bjnano.11.155

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  • 3000HS). A volume-weighted Gaussian size distribution was fit to the autocorrelation functions to obtain the particle size and zeta potential values. The atomic fractions of C, O, and N in the different SWCNTs samples were determined by X-ray photoelectron spectroscopy (XPS, Thermo Fisher Scientific
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Published 13 Nov 2020

Cu2O nanoparticles for the degradation of methyl parathion

  • Juan Rizo,
  • David Díaz,
  • Benito Reyes-Trejo and
  • M. Josefina Arellano-Jiménez

Beilstein J. Nanotechnol. 2020, 11, 1546–1555, doi:10.3762/bjnano.11.137

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  • through UV–vis absorption of 4-NPh. Likewise, it was shown that the surface basicity increases with decreasing nanoparticle size. The presence of CuCO3 on the surface of Cu2O, identified using X-ray photoelectron spectroscopy (XPS), passivates its surface and consequently diminishes the degradation of MP
  • width of 45°, acquisition time of 0.813 s, FT size of 65 K and digital resolution of 0.5 Hz per point. The number of scans varied from 512 to 4,096 per spectrum. X-ray photoelectron spectroscopy (XPS) were measured in a ESCA/SAM Perkin-Elmer model 560, using an Al Kα source with a 400 μm spot diameter
  • should increase with a reduction in NP size. However, the almost inexistent difference (3%) between the 16 nm and 29 nm NPs suggest the influence of other factors. In order to further study this small difference in degradation percentage between 16 nm and 29 nm NPs, X-ray photoelectron spectroscopy (XPS
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Published 12 Oct 2020

One-step synthesis of carbon-supported electrocatalysts

  • Sebastian Tigges,
  • Nicolas Wöhrl,
  • Ivan Radev,
  • Ulrich Hagemann,
  • Markus Heidelmann,
  • Thai Binh Nguyen,
  • Stanislav Gorelkov,
  • Stephan Schulz and
  • Axel Lorke

Beilstein J. Nanotechnol. 2020, 11, 1419–1431, doi:10.3762/bjnano.11.126

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  • the resulting Pt-NPs. Platinum loading and degree of oxidation The relative platinum loading and degree of oxidation were determined by X-ray photoelectron spectroscopy (XPS, see Experimental section). In Figure 5, an XPS survey scan (Figure 5a) and Pt4f elemental scans (Figure 5b,c) related to the
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Published 17 Sep 2020

Hybridization vs decoupling: influence of an h-BN interlayer on the physical properties of a lander-type molecule on Ni(111)

  • Maximilian Schaal,
  • Takumi Aihara,
  • Marco Gruenewald,
  • Felix Otto,
  • Jari Domke,
  • Roman Forker,
  • Hiroyuki Yoshida and
  • Torsten Fritz

Beilstein J. Nanotechnol. 2020, 11, 1168–1177, doi:10.3762/bjnano.11.101

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  • a promising n-type contact for molecular electronics. Core level spectroscopy Finally, we investigated the chemical structure by means of X-ray photoelectron spectroscopy (XPS) at normal emission. In Figure 5 the N 1s, the C 1s and the B 1s spectra for DBP on bare Ni(111) as well as on h-BN/Ni(111
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Published 04 Aug 2020

A few-layer graphene/chlorin e6 hybrid nanomaterial and its application in photodynamic therapy against Candida albicans

  • Selene Acosta,
  • Carlos Moreno-Aguilar,
  • Dania Hernández-Sánchez,
  • Beatriz Morales-Cruzado,
  • Erick Sarmiento-Gomez,
  • Carla Bittencourt,
  • Luis Octavio Sánchez-Vargas and
  • Mildred Quintana

Beilstein J. Nanotechnol. 2020, 11, 1054–1061, doi:10.3762/bjnano.11.90

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  • graphene lattice. In the Raman spectrum of the FLG-Ce6 hybrid nanomaterial, the D band is overshadowed by the Raman signals of Ce6. Figure 1c shows the X-ray photoelectron spectroscopy (XPS) spectra of the hybrid nanomaterial and Ce6. The O 1s core level spectrum of the hybrid nanomaterial FLG-Ce6 is
  • -ray photoelectron spectroscopy (XPS) with a VERSAPROBE PHI 5000 instrument from Physical Electronics, equipped with a monochromatic Al Kα X-ray source under ultrahigh vacuum conditions. The energy resolution was 0.7 eV. For the compensation of built-up charge on the sample surface during the
  • power impinging on the sample was between 5 and 10 mW, the spatial resolution was 2 cm−1 and the spot size was ≈1 µm2. The samples were recorded from drops of the dispersions deposited on clean silicon wafers and left to dry under vacuum. The chemical composition of the samples was investigated using X
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Published 17 Jul 2020

Microwave-induced electric discharges on metal particles for the synthesis of inorganic nanomaterials under solvent-free conditions

  • Vijay Tripathi,
  • Harit Kumar,
  • Anubhav Agarwal and
  • Leela S. Panchakarla

Beilstein J. Nanotechnol. 2020, 11, 1019–1025, doi:10.3762/bjnano.11.86

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  • copper. Graphitic carbon nitride (g-C3N4) or graphite powder (commercially available) are used as carbon source. g-C3N4 is synthesized and characterized according to [18]. X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) confirms the formation of g-C3N4 (Figure S1 in Supporting
  • electron microscopy (JEOL JEM 2100F) and X-ray photoelectron spectroscopy XPS (Thermo VG Scientific MultiLab, ESCA). (a) XRD patterns of commercially available Cu powder and Cu powder after treatment with 0.5 M HNO3. (b) SEM images of pure Cu powder and (c) acid-treated Cu powder. (a) Schematic of the
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Published 13 Jul 2020

Atomic layer deposition for efficient oxygen evolution reaction at Pt/Ir catalyst layers

  • Stefanie Schlicht,
  • Korcan Percin,
  • Stefanie Kriescher,
  • André Hofer,
  • Claudia Weidlich,
  • Matthias Wessling and
  • Julien Bachmann

Beilstein J. Nanotechnol. 2020, 11, 952–959, doi:10.3762/bjnano.11.79

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  • particular, we have determined particle sizes by transmission electron microscopy (TEM), investigated the homogeneously mixed nature of the Pt/Ir catalyst by X-ray diffraction (XRD), selected-area electron diffraction (SAED), and X-ray photoelectron spectroscopy (XPS). We have also examined various ALD
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Published 22 Jun 2020

Adsorption behavior of tin phthalocyanine onto the (110) face of rutile TiO2

  • Lukasz Bodek,
  • Mads Engelund,
  • Aleksandra Cebrat and
  • Bartosz Such

Beilstein J. Nanotechnol. 2020, 11, 821–828, doi:10.3762/bjnano.11.67

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  • the position of a tin atom protruding from the macrocycle: “Sn-up” and “Sn-down”. Switching from the Sn-up to the Sn-down geometry can be realized by annealing the sample at 200 °C or by tip-induced manipulation (bias pulse). X-ray photoelectron spectroscopy (XPS) measurements reveal a lack of strong
  • UHV system. Electrochemically etched Pt–Ir tips were used as probes. Stable empty-state STM images were collected in a constant-current mode (tunneling current It < 15 pA; bias voltage Utip < 2 V). X-ray photoelectron spectroscopy (XPS) was carried out by using a VG Scientific X-ray source Mark II (Mg
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Published 26 May 2020

Epitaxial growth and superconducting properties of thin-film PdFe/VN and VN/PdFe bilayers on MgO(001) substrates

  • Wael M. Mohammed,
  • Igor V. Yanilkin,
  • Amir I. Gumarov,
  • Airat G. Kiiamov,
  • Roman V. Yusupov and
  • Lenar R. Tagirov

Beilstein J. Nanotechnol. 2020, 11, 807–813, doi:10.3762/bjnano.11.65

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  • −xFex were taken at each deposition step using low-energy electron diffraction (LEED) and X-ray photoelectron spectroscopy (XPS). Finally, all structures were capped with 10 nm layer of undoped Si by magnetron sputtering to prevent sample deterioration. Thus, a VN film and stacks of Pd0.96Fe0.04/VN and
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Published 15 May 2020
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