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NOLAS , George S.

Last name: NOLAS

First name: George S.

January 29, 2016 (v1)

Publication

Metadata-only

Origin of the magnetic anomaly and tunneling effect of europium on the ferromagnetic ordering in Eu8-xSrxGa16Ge30 (x = 0,4) type-I clathrates.

Franco García, Victorino Phan, Manh Huong Chaturvedi, Anurag

Systematic dc magnetization studies using the Banerjee criterion, Kouvel-Fisher, and magnetocaloric effect methods provide physical insights into the origin of themagnetic anomaly and the tunneling effect of europium on the ferromagnetic ordering in Eu8Ga16Ge30 type-I clathrates.We showthat Eu8Ga16Ge30 undergoes a second-order magnetic...

Uploaded on: March 27, 2023
February 1, 2016 (v1)

Publication

Metadata-only

Enhanced cryogenic magnetocaloric effect in Eu8Ga16Ge30 clathrate nanocrystals

Biswas, Anis Chandra, Sayan Rout Stefanoski, S.

We observe an enhanced magnetic entropy change ( D S M ) at cryogenic temperatures (T < 20 K) in Eu 8 Ga 16 Ge 30 clathrate (type-I) nanocrystals prepared by a ball milling method. With reduction in the crystal size to 15 nm, D S M is enhanced at low temperatures, reaching the highest value ( 10 J/kg K) at 5 K for a field change of 5 T....

Uploaded on: December 4, 2022