ELECTRON SPIN RESONANCE OF MN2+ IN ALPHA-SR2P2O7

被引：8

作者：

CALVO, C

LEUNG, KY

STAGER, CV

机构：

[1] Institute for Materials Research, McMaster University, Hamilton, Ont.

来源：

JOURNAL OF CHEMICAL PHYSICS | 1968年 / 49卷 / 08期

关键词：

D O I：

10.1063/1.1670647

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Single crystals of Mn2+-doped α-Sr2P 2O7 have been studied by electron spin resonance at 35 Gc/sec. The space-group ambiguity has been resolved because the Mn2+ ions lie on a mirror plane, and therefore the unit cell must be centric. The spin-Hamilitonian parameters have been determined to be gx = 2.0021 (10), gy = 2.0015(4), gz,=2.0012(4), 620= -177.1(10) G, b22=-118.5(46) G, 4,=-91.9(10) G, =-92.8(13) G, and Az= -90.8(7) G. The z principal axis lies in the ab plane 17° from the b crystallographic axis. Only one EPR active site has been found rather than the two anticipated on crystallographic grounds. No evidence of a crystallographic phase transformation was found in the temperature range 100°-300°K.

引用

页码：3653 / &

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