Journal of Physics Condensed Matter · 2003 · 90 citations · 14 references
Natural SciencesMaterials SciencePhysicsCondensed Matter PhysicsMagnetic MaterialsPhase TransformationsAntiferromagnetismFerromagnetic MaterialsFerromagnetismMagnetic AnisotropyMagnetic Properties Of SolidsMagnetization ProcessesCharacterization Of MagnetostrictionLinear Thermal ExpansionMagnetoelastic CouplingMagnetostrictionMagnetostructural TransitionsTemperature Dependence Of MagnetostrictionTemperature-dependent MagnetizationThermal Expansion
A complete investigation of the complex magnetic behaviour of Gd5Ge4 by means of linear thermal expansion and magnetostriction measurements (5–300 K, 0–120 kOe) has been carried out. Our results support the suggested existence in this system of a coupled crystallographic–magnetic transition from a Gd5Ge4-type Pnma (antiferromagnetic) to a Gd5Si4-type Pnma (ferromagnetic) state. Strong magnetoelastic effects are observed at the field-induced first-order magnetic–martensitic transformation. A revised magnetic and crystallographic H– T phase diagram is proposed.
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A First-Order Phase Transition Induced by a Magnetic Field
H. Kuwahara, Y. Tomioka, A. Asamitsu et al. · Science · 1995 · 928 citations