科研之友
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摘要
We apply a method for analyzing phase transitions to the well-known antiferromagnets LaMnO3 and CaMnO3 using high-resolution thermal-expansion data. The critical exponents associated with the specific heat (alpha) are obtained. Within experimental error, the results suggest that LaMnO3 and CaMnO3 belong to the same universality class. An additional byproduct of our analysis is estimates for the pressure derivative of the magnetic phase transition temperature.
- 出版日期2010-5-1
