Irreversible heating measurement with microsecond pulse magnet: Example of the α-θ phase transition of solid oxygen

Toshihiro Nomura, Yasuhiro H. Matsuda, Shojiro Takeyama, Tatsuo Kobayashi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Dissipation inevitably occurs in first-order phase transitions, leading to irreversible heating. Conversely, the irreversible heating effect may indicate the occurrence of the first-order phase transition. We measured the temperature change at the magnetic-field-induced α-θ phase transition of solid oxygen. A significant temperature increase from 13 to 37 K, amounting to 700 J/mol, due to irreversible heating was observed at the first-order phase transition. We argue that the hysteresis loss of the magnetization curve and the dissipative structural transformation account for the irreversible heating. The measurement of irreversible heating can be utilized to detect the first-order phase transition in combination with an ultrahigh magnetic fields generated in a time of μs order.

Original languageEnglish
Article number094601
JournalJournal of the Physical Society of Japan
Volume85
Issue number9
DOIs
Publication statusPublished - Sep 15 2016

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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