Multifunctional phenomena in sublimed dysprosium in high magnetic fields: The magnetocaloric effect and magnetostriction

Resumo

With the use of sublimed dysprosium having a controllable impurity composition, two physical functional phenomena induced by a magnetic field are studied: magnetostriction and the magnetocaloric effect, which is estimated by independent direct and indirect methods. A giant magnetostriction value at the “order–order” magnetic phase transition and a large magnetocaloric effect in high magnetic fields at the “order–disorder” transition are shown. Both phenomena are discussed in relation to the complex field and temperature behavior of metallic-dysprosium magnetization, the measurement of which is carried out in wide intervals of temperature and magnetic fields (to 14 T).