Institute;
of;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100080,;
China;
Institute;
of;
Materials;
Science;
and;
Engineering,;
Yanshan;
University,;
Qinhuangdao;
066004,;
China;
Institute;
of;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100080,;
China;
National;
Microgravity;
Laboratory,;
Institute;
of;
Mechanics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100080,;
China;
Institute;
of;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100080,;
China;
Institute;
of;
Materials;
Science;
and;
Engineering,;
Yanshan;
University,;
Qinhuangdao;
066004,;
China;
Institute;
of;
Materials;
Science;
and;
Engineering,;
Yanshan;
University,;
Qinhuangdao;
066004,;
China;
Institute;
of;
Materials;
Science;
and;
Engineering,;
Yanshan;
University,;
Qinhuangdao;
066004,;
China;
Institute;
of;
Materials;
Science;
and;
Engineering,;
Yanshan;
University,;
Qinhuangdao;
066004,;
China;
Institute;
of;
Physics,;
Chinese;
Academy;
of;
Sciences,;
Beijing;
100080,;
China;
Institute;
of;
Materials;
Scienc;
β-FeSi2; single; crystals,; α-FeSi2; single; crystals,; chemical; vapor; transport.;