Giant barocaloric effects at low pressure in ferrielectric ammonium sulphate

Giant barocaloric effects at low pressure in ferrielectric ammonium sulphate

Caloric effects are currently under intense study due to the prospect of environment-friendly cooling applications. Most of the research is centred on large magnetocaloric effects and large electrocaloric effects, but the former require large magnetic fields that are challenging to generate economically and the latter require large electric fields that can only be applied without breakdown in t...

Inverse barocaloric effects in ferroelectric BaTiO3 ceramics

Quantification of Ammonium Sulphate Nitrate (ASN) fertilizers

This paper shows a simple procedure for the quantification of industrial and laboratory samples of Ammonium Sulphate-Nitrate fertilizers (ASN) based on a Rietveld fit from X-ray powder diffraction profiles. The Rietveld fit is performed by means of the structural models of the double salts 2NH4NO3·(NH4)2SO4 and 3NH4NO3·(NH4)2SO4, previously reported by the authors. The proposed method demonstra...

Giant barocaloric effect in hexagonal Ni2In-type Mn-Co-Ge-In compounds around room temperature

The most widespread cooling techniques based on gas compression/expansion encounter environmental problems. Thus, tremendous effort has been dedicated to develop alternative cooling technique and search for solid state materials that show large caloric effects. An application of pressure to a material can cause a change in temperature, which is called the barocaloric effect. Here we report the ...

Corrigendum: Giant barocaloric effect in hexagonal Ni2In-type Mn-Co-Ge-In compounds around room temperature