antiferromagnet

例句：

1. 1. The antiferromagnet is a rare substance that exhibits both magnetic and antimagnetic properties.
   这种反铁磁体是一种罕见的物质，具有磁性和抗磁性。
2. 2. In magnetism, an antiferromagnet can be used to create a strong magnetic field.
   在磁学中，反铁磁体可以用来产生强大的磁场。
3. 3. The antiferromagnet was discovered by scientists who were trying to understand the behavior of materials under extreme conditions.
   这种反铁磁体是由科学家发现的，他们试图理解材料在极端条件下的行为。