TY - JOUR
T1 - Rotational sublevels of an ortho-hydrogen molecule encapsulated in an isotropic C60 cage
AU - Kohama, Yoshimitsu
AU - Rachi, Takeshi
AU - Jing, Ju
AU - Li, Zhaofei
AU - Tang, Jun
AU - Kumashiro, Ryotaro
AU - Izumisawa, Satoru
AU - Kawaji, Hitoshi
AU - Atake, Tooru
AU - Sawa, Hiroshi
AU - Murata, Yasujiro
AU - Komatsu, Koichi
AU - Tanigaki, Katsumi
PY - 2009/8/12
Y1 - 2009/8/12
N2 - From specific heat measurements in high quality H2@C60 samples performed over a broad temperature range, we obtain the smallest yet observed splitting of rotational energy sublevels of encapsulated single H2 molecules, 0.1-0.2 meV, in the nearly spherical potential well provided by highly isotropic C60 cages. Additionally, we find evidence of the quantized oscillation state of isolated H2 in the C60 cage. The minuscule splitting indicates that H2@C60 provides unprecedented opportunities to study free-molecule quantum dynamic properties.
AB - From specific heat measurements in high quality H2@C60 samples performed over a broad temperature range, we obtain the smallest yet observed splitting of rotational energy sublevels of encapsulated single H2 molecules, 0.1-0.2 meV, in the nearly spherical potential well provided by highly isotropic C60 cages. Additionally, we find evidence of the quantized oscillation state of isolated H2 in the C60 cage. The minuscule splitting indicates that H2@C60 provides unprecedented opportunities to study free-molecule quantum dynamic properties.
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U2 - 10.1103/PhysRevLett.103.073001
DO - 10.1103/PhysRevLett.103.073001
M3 - Article
AN - SCOPUS:68949140908
VL - 103
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 7
M1 - 073001
ER -