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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
Yoshiaki Ōno1
TL;DR: In this paper, the Anderson lattice model was used to investigate the metamagnetism of heavy fermions using the anisotropy of the hybridization matrix element, together with electron-lattice coupling.
Abstract: Metamagnetism of heavy fermions is investigated using the Anderson lattice model in which the anisotropy of the hybridization matrix element, together with electron-lattice coupling, is taken into account. Within the leading-order approximation in the 1/ N -expansion, it is found that the incoherent part of the f electron becomes relevant above a critical field H M , while it is irrelevant below H M . Consequently, both magnetization and magnetostriction show abrupt increases with increasing H at H M . The results are in good agreement with the experimental data of CeRu 2 Si 2 .

33 citations

Journal ArticleDOI
TL;DR: In this article, the authors show that the magnetic structure of the normal spinel HgCr2S4 is a simple spiral identical with that proposed by Plumier for ZnCr2Se4 and that the propagation vector is parallel to the symmetry axis of the spiral and directed along a particular cube edge in a given domain.

33 citations

Journal ArticleDOI
TL;DR: In this paper, high-field magnetization, susceptibility and electrical resistivity were measured for uranium-based compounds UCuSn, UPdIn and U 1− x Th x NiSn with different crystal structures.

33 citations

Journal ArticleDOI
TL;DR: High calculated selectivity of CO2 over N2 and CH4 reveals the potential application of MFUM-1(Cu) in practical systems of gas separation and the application of carbon dioxide from nitrogen and also from methane was theoretically investigated.
Abstract: A magnetic metal organic framework {[Cu(but-1,4-dc)05(N3)(H2O)]·H2O}n (MFUM-1(Cu)) (but-1,4-dc = butane-1,4-dicarboxylate) was synthesized and characterized structurally and magnetically In MFUM-1(Cu), each CuII ion has a distorted octahedral geometry with an obvious Jahn–Teller distortion, where the coordination environment is composed of mixed EO-azido/aliphatic based carboxylate/H2O threefold bridges These bridges extend the structure of MFUM-1(Cu) in two dimensions by covalent connectivity and form square-shaped channels Also, a study was done to determine the effectiveness of sonochemical synthesis for the preparation of nano-sheets of MFUM-1(Cu) and subsequently the influence of particle size on physical properties such as magnetic behavior and thermal stability The particles were characterized by elemental analyses, infrared spectroscopy (IR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and powder X-ray diffraction (PXRD) analyses The effects of parameters such as concentration, solvent, and reaction time on the size distribution, morphology, and yield of product were carefully studied The magnetic properties of MFUM-1(Cu) and corresponding nano-structure were examined which indicated metamagnetism with strong intrachain ferromagnetic coupling versus the weak interchain antiferromagnetic coupling Finally, the application of MFUM-1(Cu) in the separation of carbon dioxide from nitrogen and also from methane was theoretically investigated High calculated selectivity of CO2 over N2 and CH4 reveals the potential application of MFUM-1(Cu) in practical systems of gas separation

33 citations

Journal ArticleDOI
TL;DR: The most salient features observed around a metamagnetic transition in Sr 3 Ru 2 O 7 are well captured in a simple model for spontaneous Fermi surface symmetry breaking under a magnetic field as mentioned in this paper.
Abstract: The most salient features observed around a metamagnetic transition in Sr 3 Ru 2 O 7 are well captured in a simple model for spontaneous Fermi surface symmetry breaking under a magnetic field, with...

33 citations

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