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.
引用
收藏
页码：297 / 303
页数：7
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