Magnetism of organic radical molecules confined in nanospace of single-wall carbon nanohorn
Magnetism of organic radical molecules confined in nanospace of single-wall carbon nanohorn
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DOI：
10.1021/jp071636g
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发表时间：
2007-06
影响因子：
3.7
通讯作者：
T. Matsumura;Hideki Tanaka;K. Kaneko;M. Yudasaka;S. Iijima;H. Kanoh
中科院分区：
文献类型：
--
作者：
T. Matsumura;Hideki Tanaka;K. Kaneko;M. Yudasaka;S. Iijima;H. Kanoh
The temperature and magnetic field dependences of magnetic characteristics of an organic radical (4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl (TEMPOL)) adsorbed on oxidized single-wall carbon nanohorn (ox-NH) were studied with a SQUID magnetometer and an electron spin resonance (ESR) spectrometer. TEMPOL molecules adsorbed on ox-NH do not form any ordered structures, but the formation of disordered clusters was suggested because of intensive restriction by nanoconfinement. Exchange interaction of TEMPOL adsorbed on ox-NH was weaker than that of bulk TEMPOL. Slow relaxation phenomena of magnetization and paramagnetic behaviors were observed by confinement of TEMPOL in nanospace.
