Optical response due to many magnons in α-Fe2O3 -: art. no. 014429
Optical response due to many magnons in α-Fe2O3 -: art. no. 014429
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DOI：
10.1103/physrevb.71.014429
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发表时间：
2005-01-01
影响因子：
3.7
通讯作者：
Hanamura, E
中科院分区：
文献类型：
--
作者：
Azuma, S;Sato, M;Hanamura, E
在α-Fe_2 O_3晶体的中红外吸收谱和拉曼散射谱中都观察到了二磁振子和三磁振子激发。这些信号的偏振和温度依赖性很好地理解群论分析，和微观机制进行了讨论，由于两个和三个磁振子激发的中红外吸收。
Two- and three-magnon excitations are observed both in the midinfrared absorption and Raman scattering spectrum of alpha-Fe2O3 crystals. The polarization and temperature dependence of these signals are well understood by group-theoretical analysis, and the microscopic mechanism is discussed for the midinfrared absorption due to two- and three-magnon excitations.