The distinct behavior of specific heat of diluted magnetic semiconductor (Ga,Mn)As quantum wells

Hee Chang Jeon, Mingkai Li, Seung Joo Lee, Gukhyung Ihm, Tae Won Kang, S. A. Chizhik

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

The phase transition and specific heat of carrier-induced diluted magnetic semiconductors (DMS) (Ga,Mn)As quantum well are investigated theoretically. With different concentration of magnetic ion and hole gas, there are three types of phase transitions, first-order, second-order and mixed first and second order. The specific heat of these three types of phase transitions are different, especially for the mixed-order phase transition, which shows two-step transition. The results indicate that the specific heat of DMS is a good tool to study the phase transition and critical phenomena of those quantum wells.

Original languageEnglish
Pages (from-to)S26-S29
JournalCurrent Applied Physics
Volume15
DOIs
StatePublished - 1 Sep 2015

Keywords

  • Diluted magnetic semiconductor
  • GaMnAs
  • Phase transition
  • Quantum well
  • Specific heat

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