Results 71 to 80 of about 13,580,399 (256)

Low computational cost semi-analytical magnetostatic model for magnetocaloric refrigeration systems

open access: yesAIP Advances, 2018
The analysis of the active magnetic refrigeration (AMR) cycle for different waveforms of both the magnetic field and the velocity of the heat transfer fluid is an essential challenge in designing and implementing heating and cooling systems based on the ...
A. Plait   +4 more
doaj   +1 more source

Quantum Criticality of an Ising-like Spin-1/2 Antiferromagnetic Chain in Transverse Magnetic Field [PDF]

open access: yes, 2018
We report on magnetization, sound velocity, and magnetocaloric-effect measurements of the Ising-like spin-1/2 antiferromagnetic chain system BaCo$_2$V$_2$O$_8$ as a function of temperature down to 1.3 K and applied transverse magnetic field up to 60 T ...
Breunig, O.   +13 more
core   +3 more sources

Control of Covalent Bond Enables Efficient Magnetic Cooling

open access: yesAdvanced Materials, Volume 38, Issue 7, 2 February 2026.
Giant and reversible magnetocaloric effect (MCE) is achieved by tuning covalency through sub‐unit‐cell chemical engineering, establishing a novel design principle for effective hysteresis control in magnetocaloric materials. Abstract Magnetic cooling, harnessing the temperature change in matter when exposed to a magnetic field, presents an energy ...
Xin Tang   +16 more
wiley   +1 more source

Modeling the Maximum Magnetic Entropy Change of Doped Manganite Using a Grid Search-Based Extreme Learning Machine and Hybrid Gravitational Search-Based Support Vector Regression

open access: yesCrystals, 2020
The thermal response of a magnetic solid to an applied magnetic field constitutes magnetocaloric effect. The maximum magnetic entropy change (MMEC) is one of the quantitative parameters characterizing this effect, while the magnetic solids exhibiting ...
Sami M. Ibn Shamsah, Taoreed O. Owolabi
doaj   +1 more source

Super-heavy fermion material as metallic refrigerant for adiabatic demagnetization cooling

open access: yes, 2016
Low-temperature refrigeration is of crucial importance in fundamental research of condensed matter physics, as the investigations of fascinating quantum phenomena, such as superconductivity, superfluidity and quantum criticality, often require ...
Bud'ko, S. L.   +5 more
core   +1 more source

Sustainable Liquid Metal Composites for Soft Electronics and E‐Waste Reduction

open access: yesAdvanced Materials, Volume 38, Issue 5, 22 January 2026.
Liquid metal (LM) composites embody recyclability, repairability, renewability, and resilience (4R), offering a sustainable route for soft electronics. With exceptional conductivity, stretchability, and eco‐friendly recovery, these systems enable closed‐loop lifecycles and reduce e‐waste.
Abdollah Hajalilou   +2 more
wiley   +1 more source

Magnetocaloric effect in two-dimensional spin-1/2 antiferromagnets

open access: yes, 2005
The magnetocaloric effect is studied at the transition to saturation in the antiferromagnetic spin-1/2 Heisenberg model on the simplest two-dimensional lattices, namely the square and the triangular lattice.
A. Honecker   +8 more
core   +2 more sources

On‐Chip Perovskite Coolers

open access: yesAdvanced Materials Technologies, Volume 11, Issue 1, 8 January 2026.
Scaling of 3D‐integrated electronics exacerbates thermal bottlenecks, motivating solid‐state on‐chip cooling beyond convection and immersion. This perspective reviews optical refrigeration, electroluminescent cooling, and thermoelectrics for localized, vibration‐free heat removal.
Huilong Liu   +2 more
wiley   +1 more source

New design of La(Fe, Co, Si)13 magnetocaloric composites using Gd as a binder

open access: yesJournal of Materials Research and Technology
We propose a new type of magnetocaloric composite that excludes the conventional use of non-magnetocaloric materials as the binder. Spark plasma sintering was adopted to make a fully dense La(Fe, Co, Si)13/Gd composite at low temperatures (450–600 °C ...
Z. Wu   +7 more
doaj   +1 more source

High‐Efficiency Thermal Battery Regulated by Ultralow Magnetic Fields

open access: yesSmall Science, Volume 6, Issue 1, January 2026.
A magneto‐responsive composite is reported that, for the first time, achieves a noncontact phase transition with an ultralow magnetic field (≈0.04 T). It exhibits a colossal entropy change of ≈507.6 J kg−1 K−1, an enthalpy of 181.1 J g−1, and a ≈47.6 K temperature rise, alongside enhanced thermal conductivity and heat‐release efficiency, making it ...
Lingli Li   +5 more
wiley   +1 more source

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