Defects at nitrogen site in electron-irradiated AlN

Journal Article · Mon Jun 13 00:00:00 EDT 2011 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3600638· OSTI ID:21518482

Son, N T; Janzen, E ^[1]; Gali, A ^[2]; Szabo, A ^[3]; Bickermann, M ^[4]; Ohshima, T ^[5]; Isoya, J ^[6]

---

1. Department of Physics, Chemistry and Biology, Linkoeping University, SE-581 83 Linkoeping (Sweden)
2. Research Institute for Solid State Physics and Optics, Hungarian Academy of Sciences, P.O. Box 49, H-1525 Budapest (Hungary)
3. Department of Atomic Physics, Budapest University of Technology and Economics, Budafoki ut 8, H-1111 Budapest (Hungary)
4. Department of Materials Science 6, University of Erlangen-Nuernberg, Martensstrasse 7, D-91058 Erlangen (Germany)
5. Japan Atomic Energy Agency, 1233 Watanuki, Takasaki, Gunma 370-1292 (Japan)
6. Graduate School of Library, Information and Media Studies, University of Tsukuba, Tsukuba, Ibaraki 305-8550 (Japan)

In high resistance AlN irradiated with 2 MeV electrons, an electron paramagnetic resonance (EPR) spectrum, labeled EI-1, with an electron spin S=1/2 and a clear hyperfine (hf) structure was observed. The hf structure was shown to be due the interaction between the electron spin and the nuclear spins of four {sup 27}A nuclei with the hf splitting varying between {approx}6.0 and {approx}7.2 mT. Comparing the hf data obtained from EPR and ab initio supercell calculations we suggest the EI-1 defect to be the best candidate for the neutral nitrogen vacancy in AlN.

• OSTI ID: 21518482
• Journal Information: Applied Physics Letters, Vol. 98, Issue 24; Other Information: DOI: 10.1063/1.3600638; (c) 2011 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
36 MATERIALS SCIENCE
ALUMINIUM NITRIDES
CRYSTAL DEFECTS
CRYSTALS
ELECTRON BEAMS
ELECTRON SPIN RESONANCE
HYPERFINE STRUCTURE
INTERACTIONS
MEV RANGE 01-10
NITROGEN
PARAMAGNETISM
PHYSICAL RADIATION EFFECTS
SEMICONDUCTOR MATERIALS
SPECTRA
SPIN
VACANCIES
ALUMINIUM COMPOUNDS
ANGULAR MOMENTUM
BEAMS
CRYSTAL STRUCTURE
ELEMENTS
ENERGY RANGE
LEPTON BEAMS
MAGNETIC RESONANCE
MAGNETISM
MATERIALS
MEV RANGE
NITRIDES
NITROGEN COMPOUNDS
NONMETALS
PARTICLE BEAMS
PARTICLE PROPERTIES
PNICTIDES
POINT DEFECTS
RADIATION EFFECTS
RESONANCE