Xingyu Gao

TL;DR: In this paper, a surface transfer doping scheme by surface modification with appropriate molecular acceptors represents a simple and effective method to nondestructively dope epitaxial graphene for future nanoelectronics applications.

TL;DR: It is demonstrated, both theoretically and experimentally, that cation vacancy can be the origin of ferromagnetism in intrinsic dilute magnetic semiconductors, and its presence reduces the formation energy of Zn vacancy, and thereby stabilizes the zinc vacancy.

TL;DR: In this paper, a feature article highlights recent progress in the understanding of interface energetics at small molecule OOH interfaces, focusing on the characterization and fabrication of OOH with well-defined molecular orientations using a combination of in situ low-temperature scanning tunneling microscopy, synchrotron-based high-resolution ultraviolet photoelectron spectroscopy and near-edge X-ray absorption fine structure measurements.

TL;DR: It is found that a sufficient amount of both oxygen vacancies (V(O)) and Cu impurities is essential to the observed ferromagnetism, and a non-negligible portion of Cu impurity is uninvolved in the magnetic order.

TL;DR: In this paper, nitrogen-doped carbon nanotubes were synthesized by pyrolysis of acetonitrile on Co-Mo catalysts and their electronic structures and chemical bondings were studied using various spectroscopic techniques: Raman, photoelectron and x-ray absorption spectroscopies.