Topic
Metamagnetism
About: Metamagnetism is a research topic. Over the lifetime, 2023 publications have been published within this topic receiving 38108 citations.
Papers published on a yearly basis
Papers
More filters
2 citations
TL;DR: In this paper, a first-order magnetic transition from a ferrimagnetic state to an antiferromagnetic state at T 1 =95 K was observed for both H ⊥ c and H ∥ c below T 1.
Abstract: Magnetization curves were measured for GdMn 2 Ge 2 single crystals, which show a first-order magnetic transition from a ferrimagnetic state to an antiferromagnetic state at T 1 =95 K. The field-induced transition from the ferrimagnetic state to a high-field state was observed for both H ⊥ c and H ∥ c below T 1 . The transition field, H C , in H ⊥ c goes to zero with increasing temperature to T 1 , while that in H ∥ c gradually decreases without falling to zero at T 1 . The results were analyzed in terms of a molecular field approximation, in which strong strain dependence of the interlayer Mn–Mn interaction was taken into consideration. The experimental data are well reproduced by the calculated results. The calculations predict that the compound undergoes double magnetic transitions in high magnetic fields for H ∥ c just above T 1 , which was confirmed by the measurements.
2 citations
TL;DR: In this article, the effects of pressure on the Curie temperature and the magnetization of itinerant-electron ferromagnetic compounds Lu (Co1-xGax) 2 have been investigated in the concentration range from x = 0. 10 to 0. 20.
Abstract: Effects of pressure on the Curie temperature and the magnetization of itinerant-electron ferromagnetic compounds Lu (Co1-xGax) 2 have been investigated in the concentration range from x = 0. 10 to 0. 20. All of the compounds show large negative values of ∂Tc/∂P and ∂Ms/∂P. An anomalously large negative ∂Tc/∂P was observed around x = 0. 10, being the critical concentration of the onset of ferromagnetism. This phenomenon can be explained qualitatively by taking spin fluctuations into account. The spontaneous magnetization begins to decrease drastically above a certain pressure, suggesting the onset of the metamagnetic transition from the ferromagnetic to paramagnrtic state.
2 citations
TL;DR: In this article, the anisotropic metamagnetic (MM) behavior of Ca 2− x Sr x RuO 4 (for x = 0.2) was investigated at high magnetic fields.
Abstract: Here, we report a study on the anisotropic metamagnetic (MM) behavior of Ca 2− x Sr x RuO 4 (for x =0.2) by electrical transport and magnetization measurements at high magnetic fields ( B ). With increasing field as the MM transition is crossed and when B is rotated between the inter-plane and one of the in-plane axis, we observe a crossover from Fermi liquid (FL) to non-FL behavior. Furthermore, the inter-plane resistivity shows sinusoidal behavior displaying a two-fold periodicity when a small magnetic field is rotated in the conducting planes. But as the B is increased, a new four-fold periodicity emerges, suggesting nanophase separation between orthorhombic and tetragonal domains.
2 citations
TL;DR: In this paper, a new approach to the experimental determination of the critical temperature of metamagnetic samples with non-zero demagnetizing factors is presented, which is applied to the Ni(NO 3 ) 2 ·2H 2 O, allowing the conclusion that this salt exhibits a tricritical point.
2 citations