Physics – Condensed Matter – Strongly Correlated Electrons
Scientific paper
2010-05-11
Physics
Condensed Matter
Strongly Correlated Electrons
7 pages, 7 figures
Scientific paper
Theoretical and experimental work have not provided a consistent picture of the phase diagram of the nearly ideal Ising ferromagnet LiHoF4 in a transverse magnetic field. Using a newly fabricated capacitive dilatometer, we have investigated the thermal expansion and magnetostriction of LiHoF4 in magnetic fields applied perpendicular to the Ising direction. Critical points for the ferromagnetic phase transition have been determined from both methods in the classical paramagnetic to ferromagnetic regime. Excellent agreement has been found with existing experimental data suggesting that, in this regime, the current theoretical calculations have not entirely captured the physics of this interesting model system.
Dunn Jamie L.
Hill R. W.
Reshitnyk Yarema
Sim Woojoo
Stahl C.
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