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VIDEO DOI: https://doi.org/10.48448/jwn1-q794

technical paper

MMM 2020

November 04, 2020

Live on Underline

Giant anisotropy of the magnetocaloric effect in the orthovanadate TbVO4 single crystals

Speakers

Mohamed
Mohamed Balli

Prof. Dr. @ International University of Rabat

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Mohamed Balli

Mohamed Balli

over 4 years ago

Prof. Dr.

Sorry for the delay in my responses. In fact, during the period of the conference, I have been tested positive for COVID-19.

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Mohamed Balli

Mohamed Balli

over 4 years ago

Prof. Dr.

No hysteresis was observed in our materials. So the entropy change is expected to keep its values under magnetization-demagnetization cycles.

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Mohamed Balli

Mohamed Balli

over 4 years ago

Prof. Dr.

Dear Varun, nice to see you here. The crystals present a high optical quality with tetragonal rectangular shape and typical size of 4 x 3 x 0.5 mm

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Mohamed Balli

Mohamed Balli

over 4 years ago

Prof. Dr.

Dear Nirmala, Thnaks a lot for your question. The giant MCE is particularly associated with the lowering of crystallographic symmetry from tetragonal to orthorhombic structure. This markedly affects the crystal electrical field configuration in TbVO4 and accordingly magnetism and MCE. More details on the nature of magnetism and MCEs in TbVO4 can be found in a paper that will appear soon in Physical Review Materials.

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R. Nirmala

over 4 years ago

Did you observe hysteresis in the M-H data?

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