MAGNETIC RESONANCES IN ONE-DIMENSIONAL SPIN SYSTEMS NENP AND NINO

被引：19

作者：

SIELING, M

PALME, W

LUTHI, B

机构：

[1] Physikalisches Institut, Universität Frankfurt, Frankfurt

来源：

ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER | 1995年 / 96卷 / 03期

关键词：

D O I：

10.1007/BF01313050

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present Electron-Spin-Resonance experiments in the frequency range 35-420 GHz in magnetic fields up to 14 T and with temperatures down to 1.5 K. The quasi-onedimensional S = 1 Spin Systems NENP and NINO exhibit similar resonance-modes, which can be associated with transitions between excited states at q = pi and excitations from the groundstate. Groundstate-excitation can be explained with regard to a transverse staggered field due to inequivalent Ni2+-sites along the chains. Several features are discussed like polarisation-and temperature dependence of line-intensity and the angular and temperature-dependence of resonance-field.

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页码：297 / 303

页数：7

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