LOW-TEMPERATURE MAGNETIC MEASUREMENTS OF NENP

被引:11
作者
AVENEL, O
XU, J
XIA, JS
XU, MF
ANDRAKA, B
LANG, T
MOYLAND, PL
NI, W
SIGNORE, PJC
VANWOERKENS, CMCM
ADAMS, ED
IHAS, GG
MEISEL, MW
NAGLER, SE
SULLIVAN, NS
TAKANO, Y
机构
[1] UNIV FLORIDA,DEPT PHYS,215 WILLIAMSON HALL,GAINESVILLE,FL 32611
[2] UNIV FLORIDA,CTR ULTRALOW TEMP RES,GAINESVILLE,FL 32611
[3] UNIV FLORIDA,DEPT CHEM,GAINESVILLE,FL 32611
[4] KYOTO UNIV,COLL LIBERAL ARTS & SCI,DEPT PHYS,KYOTO 606,JAPAN
[5] KYOTO UNIV,FAC SCI,DEPT PHYS,KYOTO 606,JAPAN
[6] CE SACLAY,SPEC,F-91191 GIF SUR YVETTE,FRANCE
关键词
D O I
10.1007/BF00694084
中图分类号
O59 [应用物理学];
学科分类号
摘要
The temperature dependent magnetic susceptibility, chi(T), of two samples of the S = 1 linear-chain Heisenberg antiferromagnet Ni(C2H8N2)2NO2(ClO4). known as NENP, has been measured from 400 K to 264 muK. Our measurements are in agreement with existing results of other researchers who worked above 1.2 K. Below 1.2 K, chi(T) increases with decreasing temperature. The results suggest that this increase is intrinsic to the NENP and is not a consequence of a single source of paramagnetic impurities in the samples.
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页码:547 / 550
页数:4
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