Magnetic Anisotropy in the (Cr0.5Mn0.5)2GaC MAX Phase

Salikhov, Ruslan; Семисалова, А.С.; Petruhins, Andrejs; Ingason, Arni Sigurdur; Rosén, Johanna; Wiedwald, Ulf; Farle, Michael

doi:10.1080/21663831.2015.1036324

Cited by 47 publications

(49 citation statements)

References 28 publications

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“…Mn. Synthesis of such samples has been reported both for bulk [4,15,20,21,30,32] as well as for thin films [3,12,16,31,[33][34][35][36], see Table III. Typically the temperature during bulk synthesis can reach 1400 • C while for PVD it is normally between 450 -650 • C.…”

Section: Materials Synthesis a Synthesis Methodsmentioning

confidence: 99%

Magnetic MAX phases from theory and experiments; a review

Ingason

Dahlqvist

Rosén

2016

J. Phys.: Condens. Matter

109

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This review presents MAX phases (M is a transition metal, A an A-group element, X is C or N), known for their unique combination of ceramic/metallic properties, as a recently uncovered family of novel magnetic nanolaminates. The first created magnetic MAX phases were predicted using density functional theory through evaluation of phase stability, and subsequently synthesized as heteroepitaxial thin films. All magnetic MAX phases reported to date, in bulk or thin film form, are based on Cr and/or Mn, and they include (Cr,Mn)2AlC, (Cr,Mn)2GeC, (Cr,Mn)2GaC, (Mo,Mn)2GaC, and (V,Mn)3GaC2, Cr2AlC, Cr2GeC and Mn2GaC. A variety of magnetic properties have been found, such as ferromagnetic response well above room temperature and structural changes linked to magnetic anisotropy. In this paper, theoretical as well as experimental work performed on these materials to date is critically reviewed, in terms of methods used, results acquired, and conclusions drawn. Open questions concerning magnetic characteristics are discussed, and an outlook focused on new materials, superstructures, property tailoring and further synthesis and characterization is presented.

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Section: Materials Synthesis a Synthesis Methodsmentioning

confidence: 99%

Magnetic MAX phases from theory and experiments; a review

Ingason

Dahlqvist

Rosén

2016

J. Phys.: Condens. Matter

109

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“…Furthermore, evaluation of magnetization data suggests competing interaction between antiferromagnetic (AFM) and ferromagnetic (FM) states and non-collinear spin configurations. 8,22 a Author to whom correspondence should be addressed: chung-chuan.lai@liu.se b E-mail: johanna.rosen@liu.se. Telephone:+4613285793.…”

Section: All Article Content Except Where Otherwise Noted Is Licensmentioning

confidence: 99%

“…22 Hybridization at interfaces of 3d metals (and their alloys) and Au in metallic multilayers usually leads to induction or enhancement of MAE. 37,38 From this perspective, one can expect that hybridization of Mn(Cr) with Au in atomically layered MAX phases may lead to larger MAE and, as a result, to an increase in µ 0 H C .…”

Section: All Article Content Except Where Otherwise Noted Is Licensmentioning

confidence: 99%

“…23,24 Figure 3 36 A decrease of magnetization ( Fig. 3) with increasing temperature is the result of the transition to a paramagnetic (PM) state at the critical temperature (T C ) above 220 K. 22 The split of the ZFC and the FC curves, as well as the non-monotonous temperature dependence of the ZFC curve in Fig. 3, is evident for (Cr 0.5 Mn 0.5 ) 2 GaC and remains in the (Cr 0.5 Mn 0.5 ) 2 AuC sample, but at lower temperatures.…”

Section: All Article Content Except Where Otherwise Noted Is Licensmentioning

confidence: 99%

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Magnetic properties and structural characterization of layered (Cr0.5Mn0.5)2AuC synthesized by thermally induced substitutional reaction in (Cr0.5Mn0.5)2GaC

et al. 2018

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The magnetic properties of the new phase (Cr0.5Mn0.5)2AuC are compared to the known MAX-phase (Cr0.5Mn0.5)2GaC, where the former was synthesized by thermally induced substitution reaction of Au for Ga in (Cr0.5Mn0.5)2GaC. The reaction introduced a lattice expansion of ∼3% along the c-axis, an enhancement of the coercive field from 30 mT to 140 mT, and a reduction of the Curie temperature and the saturation magnetization. Still, (Cr0.5Mn0.5)2AuC displays similar features in the magnetic field- and temperature-dependent magnetization curves as previously reported magnetic MAX phases, e.g., (Cr0.5Mn0.5)2GaC and (Mo0.5Mn0.5)2GaC. The work suggests a pathway for tuning the magnetic properties of MAX phases.

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“…The FM long-range order in a basal (M-X-M) plane has been proven experimentally for the (Cr 0.5 Mn 0.5 ) 2 GaC system. 9 Furthermore, an AFM configuration, consistent with suggested FM ordering within the Mn-C-Mn trilayer, has been confirmed recently for Mn 2 GaC using neutron diffraction. 10 Until recently, all studied quaternary magnetic MAX phases were confined to the 211 stoichiometry (n = 1), with a random mixing of the M elements on the M site in the MAX phase structure.…”

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confidence: 66%

Thin film synthesis and characterization of a chemically ordered magnetic nanolaminate (V,Mn)3GaC2

et al. 2016

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We report on synthesis and characterization of a new magnetic nanolaminate (V,Mn)3GaC2, which is the first magnetic MAX phase of a 312 stoichiometry. Atomically resolved energy dispersive X-ray mapping of epitaxial thin films reveals a tendency of alternate chemical ordering between V and Mn, with atomic layers composed of primarily one element only. Magnetometry measurements reveal a ferromagnetic response between 50 K and 300 K, with indication of a magnetic ordering temperature well above room temperature.

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Magnetic Anisotropy in the (Cr_0.5Mn_0.5)₂GaC MAX Phase

Cited by 47 publications

References 28 publications

Magnetic MAX phases from theory and experiments; a review

Magnetic MAX phases from theory and experiments; a review

Magnetic properties and structural characterization of layered (Cr0.5Mn0.5)2AuC synthesized by thermally induced substitutional reaction in (Cr0.5Mn0.5)2GaC

Thin film synthesis and characterization of a chemically ordered magnetic nanolaminate (V,Mn)3GaC2

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