Magnetic phase diagram of FeO at high pressure

TY - JOUR

T1 - Magnetic phase diagram of FeO at high pressure

AU - Zhang, Peng

AU - Cohen, R. E.

AU - Haule, K.

N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.

PY - 2017/4/17

Y1 - 2017/4/17

N2 - FeO is an insulator with anti-ferromagnetic (AFM) spin ordering at ambient pressure. At increased external pressure, the Néel temperature of FeO first increases at the pressure below 40 GPa. Experiments predict that the AFM ordering will collapse above 80 GPa, but the mechanism of the high pressure magnetic collapse is still unknown. Using the combination of density functional theory and dynamical mean-field theory (DFT+DMFT), the nature of the magnetic collapse of FeO is examined and its magnetic phase diagram up to 180 GPa is discussed.

AB - FeO is an insulator with anti-ferromagnetic (AFM) spin ordering at ambient pressure. At increased external pressure, the Néel temperature of FeO first increases at the pressure below 40 GPa. Experiments predict that the AFM ordering will collapse above 80 GPa, but the mechanism of the high pressure magnetic collapse is still unknown. Using the combination of density functional theory and dynamical mean-field theory (DFT+DMFT), the nature of the magnetic collapse of FeO is examined and its magnetic phase diagram up to 180 GPa is discussed.

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U2 - 10.1088/1742-6596/827/1/012006

DO - 10.1088/1742-6596/827/1/012006

M3 - Conference article

SN - 1742-6588

VL - 827

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

IS - 1

M1 - 012006

T2 - 14th National Conference on Theory of Magnetism 2016

Y2 - 8 April 2016 through 11 April 2016

ER -