Complex magnetic phases of Ca1-xNaxV2O4 clarified by muon-spin spectroscopy

被引：33
|
作者：
Sugiyama, Jun [1 ]
Ikedo, Yutaka [1 ]
Goko, Tatsuo [2 ]
Ansaldo, Eduardo J. [2 ]
Brewer, Jess H. [2 ,3 ,4 ]
Russo, Peter L. [2 ]
Chow, Kim H. [5 ]
Sakurai, Hiroya [6 ]
机构：
[1] Toyota Cent Res & Dev Labs Inc, Aichi 4801192, Japan
[2] TRIUMF, Vancouver, BC V6T 2A3, Canada
[3] Univ British Columbia, CIfAR, Vancouver, BC V6T 1Z1, Canada
[4] Univ British Columbia, Dept Phys & Astron, Vancouver, BC V6T 1Z1, Canada
[5] Univ Alberta, Dept Phys, Edmonton, AB T6G 2G7, Canada
[6] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050044, Japan
来源：
PHYSICAL REVIEW B | 2008年 / 78卷 / 22期
关键词：
antiferromagnetic materials; calcium compounds; magnetic structure; muon probes; sodium compounds;
D O I：
10.1103/PhysRevB.78.224406
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microscopic magnetic nature of Ca1-xNaxV2O4 with 0 <= x <= 1 has been investigated by a positive muon-spin spectroscopy (mu+SR) using powder samples for temperatures down to 1.8 K. Static antiferromagnetic (AF) order is observed for the metallic compounds with x >= 9.3/12 as well as for NaV2O4 and insulating CaV2O4. A variety of phases was also found to appear as a function of x and/or temperature. Combining with the pressure dependence of static AF order, the precise analysis of the zero-field mu+SR spectrum suggests the rearrangement of spin order on the V2O4 chain with temperature for the metallic compounds.
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页数：5
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