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Metamagnetism

About: Metamagnetism is a research topic. Over the lifetime, 2023 publications have been published within this topic receiving 38108 citations.


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Journal ArticleDOI
TL;DR: In this paper, a comparative study of the magnetization process and the magnetic susceptibility under pressure on a stoichiometric UCoAl single crystal and an off-stoichiometric Co1.05Al1.
Abstract: We have performed a comparative study of the magnetization process and the magnetic susceptibility under pressure on a stoichiometric UCoAl single crystal and an off-stoichiometric U09Co1.05Al1.05 single crystal of the anisotropic itinerant-5f-electron metamagnet UCoAl. Both UCoAl and U0.9Co1.05Al1. 05 exhibit a metamagnetic transition to the ferromagnetic state with a magnetic moment M ≍ 0.3μB (U atom)−1 in magnetic fields applied along the c axis. The critical field Bc of the transition increases with increasing pressure and temperature. The temperature dependence of the susceptibility shows a broad maximum at a temperature T max that gradually increases with increasing pressure. At ambient pressure, the transition in UCoAl is of first order below 12 K and of second order at 12–20 K. Broadeningof the transition inU0.9Co1.05Al1.05 at low temperatures is attributed rather to a variation in the B c value over the crystal (which can be described by Gaussian distribution with a half-width of 0.7 T a...

8 citations

Journal ArticleDOI
TL;DR: In this article, the magnetic phase diagrams of Fe 2−ϵ P (ϵ ⩽ 0.011) and (Fe 1− x Mn x ) 2 P( x ⊆ 0.025) are built on the basis of measurement of the susceptibility temperature dependence in weak magnetic fields.

8 citations

Journal ArticleDOI
TL;DR: At room-temperature two-dimensional nanosheets of a MOF comprised of cobalt(II) ion with benzenedicarboxylic acid ligand, which exhibited unusual magnetic properties was synthesized, substantiated by the alternating-current magnetic susceptibility measurements.
Abstract: Herein, we have synthesized at room-temperature two-dimensional nanosheets of a MOF comprised of cobalt(II) ion with benzenedicarboxylic acid ligand, which exhibited unusual magnetic properties. D...

8 citations

Journal ArticleDOI
TL;DR: In this paper, the authors report on low-temperature transport in magnetic conductors with structural disorder, where large positive magnetoresistance (MR) was found in magnetically ordered ground state of some itinerant metamagnetic alloys.

8 citations

01 Jan 2012
TL;DR: In this article, a metamagnetic transition was observed in the temperature region, where the magnetization was measured after a zero-field-cooling from room temperature to a selected temperature.
Abstract: Magnetization behavior of (La0.83Bi0.17)0.67Ca0.33MnO3 has been investigated in the temperature range from 100 to 180 K. A metamagnetic transition was observed in the temperature region, where the magnetization was measured after a zero-field-cooling from room temperature to a selected temperature. Experimental results show that, after a higher magnetization route, the field-increasing branches of the magnetization curves shows an unusual training effect: below a magnetic field H0, the applied magnetic field enhances the value of magnetization; however, above H0 the magnetic field suppresses the value, and the behavior cannot be totally attributed to the enhancement effect of the applied magnetic field on ferromagnetic phase fraction. It is proposed that, in the two-phase coexistence region, the higher magnetic field promotes the phase separation and leads to both the fraction of ferromagnetic domain and the stabilization of antiferromagnetic domain increase.

8 citations

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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202320
202249
202117
202015
201937
201837