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Updated: Mar 26, 2026
07:03
Measuring Magnetically-Tuned Ferroelectric Polarization in Liquid Crystals
Published on: August 15, 2018
9.3K
Rotating Magnetocaloric Effect in an Anisotropic Molecular Dimer.
Giulia Lorusso1, Olivier Roubeau1, Marco Evangelisti2
1Instituto de Ciencia de Materiales de Aragón (ICMA), CSIC-, University of Zaragoza, 50009, Zaragoza, Spain.
Angewandte Chemie (International Ed. in English)
|February 3, 2016
Summary
Magnetic anisotropy in dysprosium acetate tetrahydrate enables efficient cooling below liquid-helium temperatures. This method offers potential for fast cooling cycles and compact magnetic refrigerators.
Area of Science:
- Materials Science
- Quantum Physics
- Thermodynamics
Background:
- Mainstream research focuses on magnetically isotropic molecules for molecular refrigerants.
- Magnetic anisotropy is often overlooked in the development of cooling technologies.
Purpose of the Study:
- To investigate the potential of magnetic anisotropy for efficient cooling.
- To explore dysprosium acetate tetrahydrate as a candidate for sub-liquid-helium temperature cooling.
Main Methods:
- Utilized aligned single-crystal samples of dysprosium acetate tetrahydrate.
- Employed sample rotation within a constant applied magnetic field to induce cooling.
Main Results:
- Demonstrated efficient cooling below liquid-helium temperature using magnetic anisotropy.
- Dysprosium acetate tetrahydrate showed significant cooling capabilities.
Conclusions:
- Magnetic anisotropy can be effectively harnessed for advanced cooling applications.
- This approach offers potential for developing fast-cycling and compact magnetic refrigerators.
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