Orientation of suspended polar organic nanocrystals in magnetic fields: Effect of magnetic field configuration

被引：6

作者：

Kaneko, Y

Fukuda, T

Onodera, T

Kasai, H

Okada, S

Oikawa, H

Nakanishi, H

Matsuda, H

机构：

[1] Japan Sci & Technol Corp, CREST, Kawaguchi, Saitama 3320012, Japan

[2] Natl Inst Adv Ind Sci & Technol, Tsukuba, Ibaraki 3058565, Japan

[3] Tohoku Univ, Inst Multidisciplinary Res Adv Mat, Sendai, Miyagi 9808577, Japan

[4] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS | 2003年 / 42卷 / 11A期

关键词：

magnetic field orientation; DAST nanocrystal disperse system; magnetic field configuration; diamagnetic interaction; absorption spectrum;

D O I：

10.1143/JJAP.42.L1343

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The absorption spectral changes of trans-4-[4-(dimethylamino)]stilbazolium toluenesulfonate (DAST) nanocrystals dispersed in decahydronaphthalene were observed under magnetic fields in three different optical configurations. The absorbance only increased in the Voigt configuration, in which the light polarization was parallel to the magnetic field, indicating that the absorption transition moment of the nanocrystals is parallel to the magnetic field. From the arrangement of the aromatic rings in the crystals, the nanocrystal orientation under the magnetic field was concluded to be due to the diamagnetic anisotropy of the crystals.

引用

页码：L1343 / L1345

页数：3

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