Yarımagnetik Yarıiletkenlerde Magnetokalorik Etki

Yıl 2017, Cilt: 12 Sayı: 1, 15 - 22, 27.07.2017

Arif Babanlı , Osman Uçar

Öz

Magnetik alanda yarımagnetik
yarıiletkenlerde magnetokalorik etki incelenmiştir. Termodinamik potansiyel ve
entropi için analitik ifadeler bulunmuştur. Entropi değişiminin osilasyonu olan
ve olmayan kısmı olduğu görülmüştür. Entropi gelişiminin sıcaklığa göre
değişimi incelenmiştir.

Anahtar Kelimeler

Magnetocalorik etki, yarımagnetik yarıiletkenler, entropi

Magnetocaloric effect in Semimagnetic Semiconductors

Öz

The magnetocaloric effect of semimagnetic semiconductors in magnetic field is investigated. Analytical expressions for thermodynamic potential and entropy are found. It appears that the change of entropy is the oscillatory and non-oscillatory part. The change of entropy development according to the temperature was investigated.

Anahtar Kelimeler

Magnetocaloric effect, semimagnetic semiconductors, entropy

Kaynakça

• [1] Z.Z Alisultanov, R.P Meilanov, L.S Paixao, M.S. Reis, ’’Oscillating magnetocaloric effect in quantum nanoribbons’’, Physica E: Low-dimensional Systems and Nanostructures 65, 44-50 2015. [2] M. S. Reis, ’’Oscillating magnetocaloric effect’’, Appl. Phys. Lett. 99, 052511 2011. [3] Jacek Kossut Jan A. Gaj, Introduction to the Physics of Diluted Magnetic Semiconductors, Springer Series in Materials Science 144, 2010. [4] A.M.Perelemov, Obobşennıye kogerentnıye sostoyaniya kvantovıx sistem, M.: Nauka,1979. [5] Y. S. Gui, C.R. Becker, J. Liu, V. Daumer, V. Hock, H. Buhmannand L. W. Molenkamp, “Interplay of Rashba, Zeeman and Landau splitting in a magnetic two-dimensional electron gas” Europhys. Lett.,65 (3), pp. 393–399, 2004. [6] Qinjun Chen “Electrical and optical proporties of the bulk states HgTe/CdTe quantum wels topological insulators”, M.S.thesis, University of Wollongong, 2014.