Abstract
We have designed a miniature ceramic anvil high pressure cell (mCAC) for magnetic measurements at pressures up to 12.6 GPa in a commercial superconducting quantum interference (SQUID) magnetometer [1-3]. The simplified mCAC without anvil alignment mechanism is easy-to-use for researchers who are not familiar with high-pressure technology and magnetic measurements can be done above 10 GPa. Here, we show one additional modification in the mCAC. This modification enables more precise magnetic measurements on samples with smaller magnetization. We confirm the spontaneous dc magnetization in the pressure-induced ferromagnetic phase in YbCu2Si2 by high pressure magnetic measurements with the mCAC. The pressure-induced phase has the strong uniaxial Ising-type anisotropy.
Highlights
Magnetic measurement at high pressure is an important experimental method for the study of magnetic properties of materials at high pressure
The diameter of the hole is 3.0 mm. In the former version of the miniature ceramic anvil high pressure cell (mCAC), there are residual drops of a pressure-transmitting medium overflowed from the sample space between the cone part of the anvils and the gasket in the cell
We have measured the magnetization under high pressure in YbCu2Si2 to study the magnetic anisotropy in the pressure-induced phase
Summary
Magnetic measurement at high pressure is an important experimental method for the study of magnetic properties of materials at high pressure. Previous high pressure studies suggested a pressure-induced magnetic phase above 8 GPa [5,6,7]. 70 mm locking nut cylinder (b) ceramic anvil sample gasket φ2 z φ1 lead φ5.0 mm applied along the magnetic easy c axis in the tetragonal structure.
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