Susceptibility measurements at high pressures using a microcoil system in an anvil cell

被引：46

作者：

Alireza, PL ^{[1
]}

Julian, SR ^{[1
]}

机构：

[1] Univ Cambridge, Cavendish Lab, Cambridge CB3 0HE, England

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2003年 / 74卷 / 11期

关键词：

D O I：

10.1063/1.1614861

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

We present here a microcoil setup for susceptibility measurements in anvil cells. In contrast to previous designs, we have placed the secondary coil inside the high pressure volume. This dramatically boosts the signal and eliminates the need for complex background subtraction. For samples of lead, tin, and the metal-insulator oxide calcium ruthenate (Ca(2)RuO(4)), our procedure has produced very clear signals for both superconducting transitions and ferromagnetic ordering with a weak magnetic moment (0.2 mu(B)/Ru), up to 75 kbar, with a signal-to-noise ratio of similar to80. (C) 2003 American Institute of Physics.

引用

页码：4728 / 4731

页数：4

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