Nonreciprocal light birefringence in the R3B7O13X Boracites (R=Co, Cu, Ni; X=I, Br)
Nonreciprocal light birefringence in the R3B7O13X Boracites (R=Co, Cu, Ni; X=I, Br)
复制标题
R3B7O13X 硼酸盐中的非互易光双折射（R=Co、Cu、Ni；X=I、Br）
DOI：
10.1134/1.1340191
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发表时间：
2001
影响因子：
0.6
通讯作者：
B. Krichevtsov
中科院分区：
文献类型：
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作者：
B. Krichevtsov
非互易双折射 (NB) 的场和角度依赖性（NB）在磁场中呈线性，并且是由于磁场引起的空间色散所致，已在 R3B7O13X 硼酸盐（R=Co、Cu、Ni；X=I、Br）的立方（对称级 Td）顺电相中在波长 λ=633 nm 下进行了研究。结果表明，不同3d和卤素离子晶体中的NB表现出相同的各向异性。决定NB各向异性的A和g参数之间的关系，A=2g，表明NB的微观机制是光频率下二阶磁电化率的表现。
The field and angular dependences of nonreciprocal birefringence (NB), which is linear in magnetic fieldBand is due to magnetic-field-induced spatial dispersion, have been studied in the cubic (symmetry classTd) paraelectric phase of theR3B7O13Xboracites (R=Co, Cu, Ni;X=I, Br) at a wavelength λ=633 nm. It is shown that the NB in crystals with different 3dand halogen ions exhibits the same anisotropy. The relation between theAandgparameters,A=2g, which determine the NB anisotropy, suggests that the microscopic mechanism of the NB is the manifestation of second-order magnetoelectric susceptibility at optical frequencies.