Magnetocaloric effect for medical applications

Komlev, Aleksei S.; Zverev, V. I.

doi:10.1016/b978-0-12-822532-5.00001-7

Cited by 6 publications

(4 citation statements)

References 93 publications

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“…Understanding magneto-structural phase transitions is a captivating challenge in materials science. Over the past decade, research has demonstrated the potential of materials exhibiting first-order magnetic phase transition in diverse applications such as cryogenic devices [1], actuators [2], new-generation hard drives [3][4][5][6], and targeted drug delivery implants [7]. These functional materials have the capacity to drive technological advancements, enhancing energy efficiency and environmental sustainability.…”

Section: Introductionmentioning

confidence: 99%

Influence of Structural Disorder on the Magnetic Order in FeRhCr Alloys

Komlev,

Cabeza,

Chirkova

et al. 2023

Metals

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Magnetic phase transitions in alloys are highly influenced by the sample preparation techniques. In the present research, electronic and magnetic properties of Fe48Cr3Rh49 alloys with varying cooling rates were studied, both experimentally and theoretically. The degree of crystalline ordering was found to depend on the cooling rate employed after annealing the alloy. Modeling of alloy structures with different degrees of crystalline ordering was carried out via strategic selection of substitution positions and distances between chromium atoms. Theoretical calculations revealed significant changes in magnetic and electronic properties of the alloy with different substitutions. A comprehensive analysis of the calculated and experimental data established correlations between structural characteristics and parameters governing the magnetic phase transition. In this study, we also developed a method for evaluating the magnetic properties of the alloys obtained under different heat treatments. The proposed approach integrates atom substitution and heat treatment parameters, offering precise control over alloy manufacturing to effectively tune their essential magnetic properties.

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Section: Introductionmentioning

confidence: 99%

Influence of Structural Disorder on the Magnetic Order in FeRhCr Alloys

Komlev,

Cabeza,

Chirkova

et al. 2023

Metals

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“…Their near room temperature metamagnetic transition from antiferromagnetic (AF) to ferromagnetic (FM) order [5][6][7][8][9][10][11] and the interoperability between FM and paramagnetic (PM) states provide an excellent base for energy-saving spintronic devices [12][13][14][15]. Moreover, the outstanding caloric parameters and non-toxic biocompatibility of FeRh give novel alternatives for developing gas-free domestic magnetic refrigerators, or new medical applications [16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

Laser irradiation effects in FeRh thin film

Merkel

Sájerman

Lenk

et al. 2023

Mater. Res. Express

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The effect of laser irradiation in the energy range from 20 mW to 200 mW was investigated in 109 nm thick Fe51Rh49 film deposited on an MgO (100) substrate. The initial, A1 structure with fully paramagnetic magnetic ordering was achieved after irradiating the samples with 120 keV Ne+ ions with a fluence of 1 × 1016 ion/cm2, as it was confirmed by conversion-electron Mössbauer spectroscopy. At higher powers physical damage of the layer was observed, while in the lowest power case, magnetic force microscopy revealed a well-defined magnetic structure reflecting the laser irradiation pattern. The presented results have the potential to be employed for laser ablation or allows the fabrication of arbitrary ferromagnetic pattern within a homogeneous paramagnetic FeRh thin films.

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“…Apart from the hyperthermic effect, the prominent magnetocaloric effect in MSM Heuslers is an aspect to be explored as a new mechanism for hyperthermia/hypothermia under biological conditions. The initial reports on this phenomenon have been recently shown in Gd and FeRh. − The principle of the effect is based on the magnetically driven adiabatic phase transformation of the material that gives rise to a temperature change. The magnetically driven temperature change can be transferred into surrounding cells in biological environments.…”

Section: Introductionmentioning

confidence: 99%

Magnetic Shape-Memory Heuslers Turn to Bio: Cytocompatibility of Ni–Mn–Ga Films and Biomedical Perspective

Takhsha,

Furlani,

Panseri

et al. 2023

ACS Appl. Bio Mater.

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Magnetic shape-memory (MSM) Heuslers have attracted great attention in recent years for both caloric and magnetomechanical applications. Thanks to their multifunctional properties, they are also promising for a vast variety of biomedical applications. However, this topic has been rarely investigated so far. In this communication, we present the first report on the absence of cytotoxicity of MSM Heuslers in Ni−Mn−Ga epitaxial thin films and the perspective toward bioapplications. Qualitative and quantitative biological characterizations reveal that Ni−Mn− Ga films can promote the adhesion and proliferation of human fibroblasts without eliciting any cytotoxic effect. Additionally, our findings show that the morphology, composition, microstructure, phase transformation, and magnetic characteristics of the films are well preserved after the biological treatments, making the material a promising candidate for further investigations.

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Magnetocaloric effect for medical applications

Cited by 6 publications

References 93 publications

Influence of Structural Disorder on the Magnetic Order in FeRhCr Alloys

Influence of Structural Disorder on the Magnetic Order in FeRhCr Alloys

Laser irradiation effects in FeRh thin film

Magnetic Shape-Memory Heuslers Turn to Bio: Cytocompatibility of Ni–Mn–Ga Films and Biomedical Perspective

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