Heat capacity peak at the quantum critical point of the transverse Ising magnet CoNb2O6

作者: Tian Liang , S. M. Koohpayeh , J. W. Krizan , T. M. McQueen , R. J. Cava

DOI: 10.1038/NCOMMS8611

关键词: Ising modelCondensed matter physicsHeat capacityTransverse planeCritical point (thermodynamics)MagnetGapless playbackPhysicsQuantum critical point

摘要: The archetypal transverse Ising magnet CoNb2O6 possesses a set of collective spin modes near its quantum critical point. Here, the authors use heat capacity measurements to evidence existence Fermionic gapless excitations at

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