Noncontact atomic force microscopy and density functional theory studies of the (2 × 2) reconstructions of the polar AlN(0001) surface

Florian Chaumeton; Roberto Robles; Miguel Pruneda; Nicolas Lorente; Benoit Eydoux; Xavier Bouju; Sebastien Gauthier; David Martrou

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Noncontact atomic force microscopy and density functional theory studies of the (2 × 2) reconstructions of the polar AlN(0001) surface

机译：极性AlN（0001）表面（2×2）重建的非接触原子力显微镜和密度泛函理论研究

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Combined experimental and theoretical studies permit us to determine new protocols for growing by molecular beam epitaxy the technologically interesting N-rich aluminum nitride (AlN) surfaces. This is achieved by dosing the precursor gases at unusually low rates. With the help of calculated structures by using density functional theory and Boltzmann distribution of the reconstructed cells, we proposed to assign the measured surface obtained with a growth rate of 10 nm/h to a (2 × 2) reconstructed surface involving one additional N atom per unit cell. These N-rich A1N surfaces could open new routes to dope AlN layers with important implications in high-power and temperature technological applications.

机译：结合实验和理论研究，我们可以确定通过分子束外延生长技术有趣的富N氮化铝（AlN）表面的新协议。这是通过以极低的速率计量添加前体气体来实现的。借助密度函数理论和重建细胞的玻尔兹曼分布，通过计算结构，我们建议将以10 nm / h的生长速度获得的测量表面分配给一个包含一个额外N原子的（2×2）重建表面每个单位单元格。这些富含氮的AlN表面可以为掺杂AlN层开辟新途径，这对大功率和高温技术应用具有重要意义。

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来源
《Physical review》 |2016年第16期|165305.1-165305.6|共6页
作者
Florian Chaumeton; Roberto Robles; Miguel Pruneda; Nicolas Lorente; Benoit Eydoux; Xavier Bouju; Sebastien Gauthier; David Martrou;
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NanoSciences Group, CEMES, CNRS UPR 8011, 29 rue J. Marvig, F-31055 Toulouse, France,Universite de Toulouse, UPS, 29 rue J. Marvig, F-31055 Toulouse, France;

ICN2-Institut Catala de Nanociencia i Nanotecnologia, Campus UAB, 08193 Bellaterra (Barcelona), Spain,CSIC-Conseio Superior de Investigaciones Cientificas, ICN2 Building, Campus UAB, 08193 Bellaterra (Barcelona), Spain;

ICN2-Institut Catala de Nanociencia i Nanotecnologia, Campus UAB, 08193 Bellaterra (Barcelona), Spain,CSIC-Conseio Superior de Investigaciones Cientificas, ICN2 Building, Campus UAB, 08193 Bellaterra (Barcelona), Spain;

ICN2-Institut Catala de Nanociencia i Nanotecnologia, Campus UAB, 08193 Bellaterra (Barcelona), Spain,CSIC-Conseio Superior de Investigaciones Cientificas, ICN2 Building, Campus UAB, 08193 Bellaterra (Barcelona), Spain,Centro de Fisica de Materiales CFM/MPC (CSIC-UPV/EHU), Paseo Manuel de Lardizabal 5, 20018 Donostia-San Sebastian, Spain, and Donostia International Physics Center (DIPC), Paseo Manuel de Lardizabal 4, 20018 Donostia-San Sebastian, Spain;

NanoSciences Group, CEMES, CNRS UPR 8011, 29 rue J. Marvig, F-31055 Toulouse, France,Universite de Toulouse, UPS, 29 rue J. Marvig, F-31055 Toulouse, France;

NanoSciences Group, CEMES, CNRS UPR 8011, 29 rue J. Marvig, F-31055 Toulouse, France;

NanoSciences Group, CEMES, CNRS UPR 8011, 29 rue J. Marvig, F-31055 Toulouse, France;

NanoSciences Group, CEMES, CNRS UPR 8011, 29 rue J. Marvig, F-31055 Toulouse, France;

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1. Noncontact atomic force microscopy and density functional theory studies of the (2 x 2) reconstructions of the polar AlN(0001) surface [J] . Chaumeton Florian, Robles Roberto, Pruneda Miguel, Physical review, B . 2016,第16期

机译：极性AlN（0001）表面（2 x 2）重建的非接触原子力显微镜和密度泛函理论研究
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7. Noncontact atomic force microscopy and density functional theory studies of the (2×2) reconstructions of the polar AlN(0001) surface [O] . Chaumeton, Florian, Robles, Roberto, Pruneda, Miguel, 2018

机译：极性AlN（0001）表面（2×2）重建的非接触原子力显微镜和密度泛函理论研究

Noncontact atomic force microscopy and density functional theory studies of the (2 × 2) reconstructions of the polar AlN(0001) surface

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