MICROSCOPIC THEORY OF THE TEMPERATURE-PRESSURE PHASE-DIAGRAM OF IRON
MICROSCOPIC THEORY OF THE TEMPERATURE-PRESSURE PHASE-DIAGRAM OF IRON
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DOI：
10.1103/physrevlett.50.130
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发表时间：
1983-01-01
影响因子：
8.6
通讯作者：
PETTIFOR, DG
中科院分区：
文献类型：
--
作者：
HASEGAWA, H;PETTIFOR, DG
在Hubbard和Hasegawa最近发展的带磁性单位自旋涨落理论下，计算了体心立方、面心立方和六方体铁的自由能随温度和压力的变化。这个简单的理论可以解释在铁的T-α，γ，δ-P相图中出现ε相和−相，相变是由对自由能的磁性贡献驱动的。
The free energy of bcc, fcc, and hcp iron has been calculated as a function of temperature and pressure within the single-site spin-fluctuation theory of band magnetism, which has been developed recently by Hubbard and Hasegawa. The simple theory can account for the occurrence of the α, γ, δ, and ε phases in the T− P phase diagram of iron, the phase transitions being driven by the magnetic contributions to the free energy.