PHYSICS LETTERS A

WANG LH, ZHANG ZZ, ZHAO JG, DING BJ, GUO Y, JIN C

PHYSICS LETTERS A

YU D, JIANG L, WANG F, LI X, QU LT, LU YF

PHYSICS LETTERS A

LU WT, XU CT, YE CZ, JIANG H, PAN HZ, WANG YL

PHYSICS LETTERS A

YANG M, WANG RQ, BAI YK

PHYSICS LETTERS A

DU HB, JIA Y, SUN Q, GUO ZX