μSR study on CuCr1-xMgxO2

被引：10

作者：

Ikedo, Yutaka ^{[1
]}

Sugiyama, Jun ^{[1
]}

Nozaki, Hiroshi ^{[1
]}

Mukai, Kazuhiko ^{[1
]}

Russo, Peter L. ^{[2
]}

Andreica, Daniel ^{[3
]}

Amato, Alex ^{[4
]}

Ono, Yasuhiro ^{[5
]}

Kajitani, Tsuyoshi ^{[5
]}

机构：

[1] Toyota Cent Res & Dev Labs Inc, Aichi 4801192, Japan

[2] TRIUMF, Vancouver, BC V6T 2A3, Canada

[3] Univ Babes Bolyai, Fac Phys, RO-3400 Cluj Napoca, Romania

[4] Paul Scherrer Inst, Lab Muon Spin Spect, CH-5232 Villigen, Switzerland

[5] Tohoku Univ, Grad Sch Engn, Dept Appl Phys, Sendai, Miyagi 9808579, Japan

来源：

PHYSICA B-CONDENSED MATTER | 2009年 / 404卷 / 5-7期

关键词：

Antiferromagnetism; Delafossite; Muon-spin rotation/relaxation spectroscopy; FILMS;

D O I：

10.1016/j.physb.2008.11.116

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In order to clarify the magnetic nature of a delafossite-type oxide, CuCr1-xMgxO2 (x = 0 and 0.03), we have performed zero field (ZF-) and weak transversal field (wTF-) mu+SR measurements in the temperature range between 1.8 and 50K using polycrystalline samples. The wTF-mu+SR measurements suggested that both samples undergo a magnetic transition at T-m = 26 K, clarifying that T-m is not altered by the Cr3+ substitution with Mg2+. The ZF-mu+SR measurements indicated the existence of a clear muon-spin precession (similar to 50 MHz at T -> 0 K) signal for the x = 0 sample below T., indicating a long-range antiferromagnetic order state, whereas the absence of long-range order for the x = 0.03 sample even at 1.8 K. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：645 / 648

页数：4

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