Spin frustration in Y(Sc)Mn-2

被引：8
|
作者：
Mekata, M
Asano, T
Nakamura, H
Shiga, M
Kojima, K
Luke, GM
Keren, A
Wu, WD
Uemura, YJ
Dunsinger, S
Gingras, M
机构：
[1] KYOTO UNIV,DEPT MET SCI & ENGN,KYOTO 60601,JAPAN
[2] COLUMBIA UNIV,DEPT PHYS,NEW YORK,NY 10027
[3] UNIV BRITISH COLUMBIA,DEPT PHYS,VANCOUVER,BC V6T 2A3,CANADA
[4] UNIV BRITISH COLUMBIA,TRIUMF,VANCOUVER,BC V6T 2A3,CANADA
来源：
HYPERFINE INTERACTIONS | 1997年 / 104卷 / 1-4期
关键词：
D O I：
10.1023/A:1012677204749
中图分类号：
O64 [物理化学（理论化学）、化学物理学]; O56 [分子物理学、原子物理学];
学科分类号：
070203 ; 070304 ; 081704 ; 1406 ;
摘要：
The relaxation rate of muon polarization of Y0.97Sc0.03Mn2 with a magnetic lattice composed of corner-shared tetrahedrons shows a broad peak around 2.5 K indicating a random spin freezing at low temperatures. The substitution by nonmagnetic Al atoms for 10% Mn atoms raises the spin freezing temperature to 45 K. The present work shows clearly that due to the strong geometrical frustration, the ground state of the system is singlet tetrahedrons mixed with frozen paramagnetic tetrahedrons.
引用
收藏
页码：337 / 342
页数：6
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