PERTURBED-ANGULAR-DISTRIBUTION MEASUREMENTS OF THE CHEMICAL-SHIFT OF IRON IN THE DISULFIDES FES2 (PYRITE) AND RUS2 (LAURITE)

被引：13

作者：

MULLER, W ^{[1
]}

BERTSCHAT, HH ^{[1
]}

BIEDERMANN, K ^{[1
]}

KOWALLIK, R ^{[1
]}

LAHMERNAIM, E ^{[1
]}

MAHNKE, HE ^{[1
]}

SEEGER, S ^{[1
]}

ZEITZ, WD ^{[1
]}

FIECHTER, S ^{[1
]}

TRIBUTSCH, H ^{[1
]}

机构：

[1] HAHN MEITNER INST KERNFORSCH BERLIN GMBH,BEREICH PHOTOCHEM ENERGIEUMWANDLUNG,W-1000 BERLIN 39,GERMANY

来源：

PHYSICAL REVIEW B | 1990年 / 41卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.41.8624

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Measurements of the temperature dependence of the chemical shift at Fe nuclei in FeS2 (pyrite) and Fe impurities in RuS2 (laurite) were performed on high-purity synthetic single-crystal samples using the perturbed-angular- distribution method. Equivalent, considerably negative, and temperature- independent chemical shifts were observed in both hosts, which we attribute to strong van Vleck paramagnetism. Bulk susceptibility data at low temperatures show no local moment formation at Fe sites due to nonstoichiometric sulfur content. The results are evaluated with respect to the photoactive properties of these materials and the requirements for solar-energy applications. © 1990 The American Physical Society.

引用

页码：8624 / 8629

页数：6

共 40 条

[1]

Abragam A., 1970, ELECTRON PARAMAGNETI, P399

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