Results 71 to 80 of about 14,202 (264)

Patterned growth of InGaN/GaN quantum wells on freestanding GaN grating by molecular beam epitaxy

Nanoscale Research Letters, 2011
We report here the epitaxial growth of InGaN/GaN quantum wells on freestanding GaN gratings by molecular beam epitaxy (MBE). Various GaN gratings are defined by electron beam lithography and realized on GaN-on-silicon substrate by fast atom beam etching.
Wang Yongjin, Hu Fangren, Hane Kazuhiro
doaj  

Selective epitaxial growth of stepwise SiGe:B at the recessed sources and drains: A growth kinetics and strain distribution study

AIP Advances, 2016
The selective epitaxial growth of Si1-xGex and the related strain properties were studied. Epitaxial Si1-xGex films were deposited on (100) and (110) orientation wafers and on patterned Si wafers with recessed source and drain structures via ultrahigh ...
Sangmo Koo, Hyunchul Jang, Sun-Wook Kim, Dae-Hong Ko   +3 more
doaj   +1 more source

Bulk‐Like Spin Cycloid and Fast Switching in Freestanding BiFeO3

Advanced Functional Materials, EarlyView.
Freestanding BiFeO3 membranes overcome substrate‐induced constraints by simultaneously restoring the intrinsic bulk‐like spin cycloid and enabling ≈50% faster ferroelectric switching than substrate‐clamped epitaxial thin films. This combination of robust noncollinear antiferromagnetic order and efficient electric‐field switching establishes ...
Pratap Pal, Xiaoxi Deng, Gi‐Yeop Kim, Kyoungjun Lee, Jheng‐Cyuan Lin, Prithwijit Mandal, Jiangfeng Yang, Paul Steadman, Pascal Manuel, Roger D. Johnson, Si‐Young Choi, Paolo G. Radaelli, Chang‐Beom Eom   +12 more
wiley   +1 more source

Synthesis and transport properties of epitaxial Bi (111) films on GaAs (111) substrates [PDF]

APL Materials
In recent decades, the growth of ultrathin epitaxial bismuth (Bi) films on various substrates has garnered interest due to their unique electronic properties.
Jagannath Jena, Eugene D. Ark, Siddhesh Ambhire, Michael D. Smith, Justin S. Wood, Junyi Yang, John Pearson, Hanu Arava, Daniel Rosenmann, Ulrich Welp, Jidong S. Jiang, Deshun Hong, Ivar Martin, Steven S.-L. Zhang, Anand Bhattacharya   +14 more
doaj   +1 more source

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

Advanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll, Ivan Pinto‐Huguet, Enzo Rotunno, Thomas Galvani, Catalina Coll, Payam Habibzadeh Kavkani, Maria Chiara Spadaro, Yann‐Michel Niquet, Martin Børstad Eriksen, Sara Martí‐Sánchez, Georgios Katsaros, Giordano Scappucci, Peter Krogstrup, Giovanni Isella, Andreu Cabot, Gonzalo Merino, Pablo Ordejón, Stephan Roche, Vincenzo Grillo, Jordi Arbiol   +19 more
wiley   +1 more source

Epitaxial growth of cesium potassium antimonide photocathode [PDF]

APL Materials
The performance of electron accelerators and photon detectors heavily depends on the efficiency and stability of the photocathode. The emitted beam current and brightness can be limited by surface and bulk disorder in polycrystalline photocathode ...
Kali Prasanna Mondal, Mengjia Gaowei, Elena Echeverria, Kenneth Evans-Lutterodt, Siddharth Karkare, Jared Maxson, Chad Pennington, John Smedley   +7 more
doaj   +1 more source

Role of Liquid Composition in the Transient Liquid Assisted Growth of Superconducting YBa2Cu3O7‐δ Films

Advanced Materials, EarlyView.
The Y supersaturation in the [Ba‐Cu(I/II)‐O] transient liquid composition is the driving force toward YBCO nucleation and growth in TLAG. Tuning the initial (Ba:Cu) molar ratio in the ink composition determines the YBCO epitaxial nucleation through supersaturation control.
Lavinia Saltarelli, Diana García, Laia Soler, Elzbieta Pach, Kapil Gupta, Daniel Sanchez‐Rodriguez, Jordi Aguilar, Víctor Fuentes, Eduardo Solano, Cristian Mocuta, Jordi Farjas, Xavier Obradors, Teresa Puig   +12 more
wiley   +1 more source

Spin and Charge Control of Topological End States in Chiral Graphene Nanoribbons on a 2D Ferromagnet

Advanced Materials, EarlyView.
Chiral graphene nanoribbons on a ferromagnetic gadolinium‐gold surface alloy display tunable spin and charge states at their termini. Atomic work function variations and exchange fields enabe transitions between singlet, doublet, and triplet configurations.
Leonard Edens, Francisco Romero‐Lara, Trisha Sai, Kalyan Biswas, Manuel Vilas‐Varela, Thomas Frederiksen, Diego Peña, Fabian Schulz, Jose Ignacio Pascual   +8 more
wiley   +1 more source

Crystal orientation of epitaxial film deposited on silicon surface

Scientific Reports
Direct growth of oxide film on silicon is usually prevented by extensive diffusion or chemical reaction between silicon (Si) and oxide materials.
Satoru Kaneko, Takashi Tokumasu, Manabu Yasui, Masahito Kurouchi, Daishi Shiojiri, Shigeo Yasuhara, Sumanta Kumar Sahoo, Musa Mutlu Can, Ruei Sung Yu, Kripasindhu Sardar, Masahiro Yoshimura, Masaki Azuma, Akifumi Matsuda, Mamoru Yoshimoto   +13 more
doaj   +1 more source

Strain-relief by single dislocation loops in calcite crystals grown on self-assembled monolayers

Nature Communications, 2016
Epitaxial crystal growth attracts significant interest. Here, the authors use Bragg Coherent Diffraction Imaging to demonstrate calcite crystal precipitation on self-assembled monolayers exhibiting single dislocation loops with different geometries to ...
Johannes Ihli, Jesse N. Clark, Alexander S. Côté, Yi-Yeoun Kim, Anna S. Schenk, Alexander N. Kulak, Timothy P. Comyn, Oliver Chammas, Ross J. Harder, Dorothy M. Duffy, Ian K. Robinson, Fiona C. Meldrum   +11 more
doaj   +1 more source