Barocaloric effect in metamagnetic shape memory alloys

Manosa L., Stern-Taulats E., Planes A., Lloveras P., Barrio M., Tamarit J., ...Daha Fazla

Physica Status Solidi (B) Basic Research, cilt.251, sa.10, ss.2114-2119, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 251 Sayı: 10
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1002/pssb.201350371
  • Dergi Adı: Physica Status Solidi (B) Basic Research
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.2114-2119
  • Anahtar Kelimeler: barocaloric effect, magnetic shape memory alloys, metamagnetic shape memory alloys, pressure effects, ENTROPY CHANGE, REFRIGERATION, TRANSITIONS, CO
  • Ankara Üniversitesi Adresli: Evet

Özet

© 2014 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.We report on calorimetric measurements under hydrostatic pressure in a series of composition related metamagnetic shape memory alloys. We show that metamagnetic shape memory alloys exhibit a barocaloric effect whose magnitude compares well to the magnetocaloric effect exibited by this kind of alloys. While in metamagnetic alloys the magnetocaloric effect is inverse, the barocaloric effect has been found to be conventional. The values obtained for the pressure-induced entropy changes at moderate pressures are in the range of those reported for giant caloric materials.