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Direct growth of large-area vertically stacked two-dimensional (2D) van der Waal (vdW) materials is a prerequisite for their high-end applications in integrated electronics, optoelectronics and photovoltaics. Currently, centimetre- to even…

The objective of this study is to explore conditions that facilitate a significant reduction in substrate temperature during diamond growth. The typical temperature for this process is around 1200K; we aim to reduce it to a much lower…

Chemical Physics · Physics 2024-05-07 Yuri Barsukov , Igor D. Kaganovich , Mikhail Mokrov , Alexander Khrabry

The intensive development of technology for fabrication semiconducting CVD diamond layers poses an important task of developing a precise and non-destructive method for estimation the boron content in thin epitaxial layers. For bulk and…

Materials Science · Physics 2023-10-20 Mikhail Panov , Vasily Zubkov , Anna Solomnikova , Igor Klepikov

Single-crystalline diamond (SCD) films possess exceptional thermal, chemical, and optical properties, making them ideal for advanced applications. However, achieving uniform film quality via microwave plasma chemical vapor deposition…

Materials Science · Physics 2025-10-23 Truong Thi Hien , Jaesung Park , Cuong Manh Nguyen , Jeong Hyun Shim , Sangwon Oh

Nitrogen-vacancy centres in nanodiamonds (NDs) provide a promising resource for quantum photonic systems. However, developing a technology beyond proof-of-principle physics requires optimally engineering its component parts. In this work,…

Highly periodic structures are often said to convey the beauty of nature. However, most material properties are strongly influenced by the defects they contain. On the mesoscopic scale, molecular self-assembly exemplifies this interplay;…

We demonstrate the fabrication of single-crystalline diamond nanopillars on a (111)-oriented chemical vapor deposited diamond substrate. This crystal orientation offers optimal coupling of nitrogen-vacancy (NV) center emission to the…

We present a comprehensive study on the formation of micrometer-sized, textured hexagonal diamond silicon (hd-Si) crystals via nanoindentation followed by annealing. Utilizing advanced characterization techniques such as polarized Raman…

Ensembles of nitrogen-vacancy (NV) centers in diamond are versatile quantum sensors with broad applications in the physical and life sciences. The concentration of neutral substitutional nitrogen ([N$_\text{s}^0$]) strongly influences…

We present a density functional theory analysis of the negatively charged nitrogen-vacancy (NV$^-$) defect complex in diamond located in the vicinity of (111)- or (100)-oriented surfaces with mixed (N,H)-terminations. We assess the…

Materials Science · Physics 2022-02-21 Wolfgang Körner , Reyhaneh Ghassemizadeh , Daniel F. Urban , Christian Elsässer

The ability to synthesize high-quality samples over large areas and at low cost is one of the biggest challenges during the developmental stage of any novel material. While chemical vapor deposition (CVD) methods provide a promising…

The growth of single-layer MoS2 with chemical vapor deposition is an established method that can produce large-area and high quality samples. In this article, we investigate the geometrical and optical properties of hundreds of individual…

Mesoscale and Nanoscale Physics · Physics 2017-04-07 Foad Ghasemi , Riccardo Frisenda , Dumitru Dumcenco , Andras Kis , David Perez de Lara , Andres Castellanos-Gomez

Recent advances in the characterization of hexagonal-diamond silicon (2H-Si) have shown that this material possesses remarkably different structural, electronic, and optical properties as compared to the common cubic-diamond (3C) polytype.…

Materials Science · Physics 2024-10-22 Marc Túnica , Alberto Zobelli , Michele Amato

Dynamical decoupling is a powerful technique for extending the coherence time (T$_2$) of qubits. We apply this technique to the electron spin qubit of a single nitrogen-vacancy center in type IIa diamond. In a crystal with natural abundance…

Quantum Physics · Physics 2012-11-01 J. H. Shim , I. Niemeyer , J. Zhang , D. Suter

We have demonstrated a versatile method for fabrication of biaxial hyperbolic metamaterials (HMMs) using layered structures consisting of titanium dioxide and copper. In order to enable the biaxial property, an oblique angle deposition…

Optics · Physics 2020-01-28 Changkee Hong , Maarij Syed , Azad Siahmakoun , Hossein Alisafaee

Recently, topological quantum materials have emerged as a promising electrocatalyst for hydrogen evolution reaction (HER). However, most of their performance largely lags behind noble metals such as benchmark platinum (Pt). In this work, a…

Materials Science · Physics 2022-09-02 Qing Qu , Bin Liu , Wing Sum Lau , Ding Pan , Iam Keong Sou

High-pressure research is a productive route to new structures and emergent properties. However, crucial high-pressure structural information remains highly fragmented across individual publications and heterogeneous computational…

We report a coherent layer-by-layer high-order harmonic generation (HHG) build-up in artificially stacked transition metal dichalcogenides (TMDC) crystals in their various stacking configurations. In the experiments, millimeter-sized single…

Transition metal dichalcogenides exhibit a wide range of semiconducting, metallic, correlated, and topological electronic states that arise from strong coupling between lattice structure, dimensionality, and electronic degrees of freedom.…

Materials Science · Physics 2026-05-19 Anzar Ali , Md Ezaz Hasan Khan , Mahmoud Abdel-Hafiez

The preparation of two-dimensional transition metal dichalcogenides on an industrially relevant scale will rely heavily on bottom-up methods such as chemical vapour deposition. In order to obtain sufficiently large quantities of…

Materials Science · Physics 2022-08-18 E. Pollmann , A. Maas , D. Marnold , A. Hucht , R. Neubieser , M. Stief , L. Madauß , M. Schleberger