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B-T phase diagram of CoCr2O4 in magnetic fields up to 14 T

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 نشر من قبل Artem Pronin
 تاريخ النشر 2011
  مجال البحث فيزياء
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We have measured the magnetization and specific heat of multiferroic CoCr2O4 in magnetic fields up to 14 T. The high-field magnetization measurements indicate a new phase transition at T* = 5 - 6 K. The phase between T* and the lock-in transition at 15 K is characterized by magnetic irreversibility. At higher magnetic fields, the irreversibility increases. Specific-heat measurements confirm the transition at T*, and also show irreversible behavior. We construct a field-temperature phase diagram of CoCr2O4.



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