CaRuO3 is not a paramagnetic material

被引：69

作者：

Felner, I ^{[1
]}

Nowik, I

Bradaric, I

Gospodinov, M

机构：

[1] Hebrew Univ Jerusalem, Racah Inst Phys, IL-91904 Jerusalem, Israel

[2] Vinca Inst Nucl Sci, Lab Theoret & Condensed Matter Phys, YU-11001 Belgrade, Yugoslavia

[3] Bulgarian Acad Sci, Inst Solid State Phys, BU-1784 Sofia, Bulgaria

来源：

PHYSICAL REVIEW B | 2000年 / 62卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.62.11332

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnetic studies of ceramic and single crystal CaRuO3 samples demonstrate that irreversibility appears in the zero-field-cooled field-cooled curves only when measured at low applied magnetic fields. A small hysteresis loop opens at low temperatures, and the remanent magnetization decreases with temperature and disappears at similar to 90 and 71 K for the ceramic and crystal samples, respectively. The easy axis for the magnetization is in the [001]. Mossbauer studies of 1% Fe-57 doped in CaRuO3 show a magnetic sextet at 4.1 K which disappears at 90 K. It is proposed that CaRuO3 is not paramagnetic, but rather shows the characteristics of short range magnetic interactions, possibly as spin-glass-like behavior. Fe-57 ions experience an exchange field from their magnetic Ru neighbors and also become magnetically ordered.

引用

页码：11332 / 11335

页数：4

共 20 条

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