TY - JOUR
T1 - Stable vacancy clusters in neutron-irradiated graphite
T2 - Evidence for aggregations with a magic number
AU - Tang, Z.
AU - Hasegawa, M.
AU - Shimamura, T.
AU - Nagai, Y.
AU - Chiba, T.
AU - Kawazoe, Y.
AU - Takenaka, M.
AU - Kuramoto, E.
AU - Iwata, T.
PY - 1999
Y1 - 1999
N2 - By combining positron-annihilation experiments and first-principles calculations, abundant planar V6 rings are identified in heavily neutron-irradiated graphite. The calculations show that the V6 ring is particularly stable. Annealing experiments exhibit that the V6 ring survives up to 1500°C. These results suggest vacancies aggregating with the magic number in graphite.
AB - By combining positron-annihilation experiments and first-principles calculations, abundant planar V6 rings are identified in heavily neutron-irradiated graphite. The calculations show that the V6 ring is particularly stable. Annealing experiments exhibit that the V6 ring survives up to 1500°C. These results suggest vacancies aggregating with the magic number in graphite.
UR - http://www.scopus.com/inward/record.url?scp=4243197197&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=4243197197&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.82.2532
DO - 10.1103/PhysRevLett.82.2532
M3 - Article
AN - SCOPUS:4243197197
SN - 0031-9007
VL - 82
SP - 2532
EP - 2535
JO - Physical Review Letters
JF - Physical Review Letters
IS - 12
ER -