NANO LETTERS

DAI JY, WANG DX, ZHANG M, NIU TC, LI A, YE M, QIAO S, DING GQ, XIE XM, WANG YQ, CHU PK, YUAN QH, DI ZF, WANG X, DING F, YAKOBSON BI

NANO LETTERS

BI H, LIN TQ, XU F, TANG YF, LIU ZQ, HUANG FQ