MAGNETIC-STRUCTURE OF TBAGSN AND HOAGSN

被引:11
作者
BAZELA, W
LECIEJEWICZ, J
MALETKA, K
SZYTULA, A
机构
[1] JAGELLONIAN UNIV,INST PHYS,UL REYMONTA 4,PL-03059 KRAKOW,POLAND
[2] KRAKOW TECH UNIV,INST PHYS,KRAKOW,POLAND
[3] INST NUCL CHEM & TECHNOL,WARSAW,POLAND
[4] INST ATOM ENERGY,OTWOCK,POLAND
关键词
D O I
10.1016/0304-8853(92)90281-R
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Polycrystalline TbAgSn and HoAgSn have been studied by neutron diffraction. The data obtained at 300 K do not discriminate between the possibilities of the crystal structure being described as (i) the space group P6(3)/mmc (CeIn2 type) with Ag and Sn atoms distributed at random or (ii) by P63mc (GaGeLi type) with an ordered distribution of Ag and Sn. Both compounds order antiferromagnetically: TbAgSn below 33 K and HoAgSn below 15 K with magnetic moments at 4 K of 8.5(1) and 8.8(1) K, respectively. The moments are aligned along the hexagonal axis of the magnetic cell with the dimensions: a(m) = a(c), b(m) = a(c) square-root 3, c(m) = c(c), where a(c) and c(c) are the parameters of the crystallographic unit cell.
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页码:L1 / L4
页数:4
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