Heat Capacity in Pulsed Fields

Heat capacity is the ratio of the heat added to (or subtracted from) an object to the resulting temperature change. The SI unit of heat capacity is joule per degree kelvin. Heat capacity is an extensive property of matter, meaning it is proportional to the size of the system. When expressing the same phenomenon as an intensive property, the heat capacity is divided by the amount of substance, mass, or volume, so that the quantity is independent of the size or extent of the sample. The molar heat capacity is the heat capacity per unit amount (SI unit: mole) of a pure substance. The specific heat capacity, often simply called specific heat, is the heat capacity per unit mass of a material.

Instrumentation

  • Compatible Magnets

  • Available Equipment

  • Quantum Design® Physical Properties Measurement System (PPMS) equipped with a 14 T superconducting magnet and ³He option.
  • In-house calorimeter for use in a ⁴He/³He dilution refrigerator, in combination with a 18/20 T superconducting magnet
  • In-house calorimeter for use in a ³He refrigerator, in combination with various magnets including 15/17T superconducting magnet, 33T resistive magnet and 45T hybrid magnet.
  • In-house calorimeter for use in 60T Controlled Waveform magnet.

Images & Sample Data

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Related Publications

V. Zapf, et al, Bose Einstein condensation in quantum magnets, Rev. Mod. Phys. 86 (2014) Read online 


Y. Kohama, et al, Anisotropic Cascade of Field-Induced Phase Transitions in the Frustrated Spin-Ladder System BiCu2PO6, Phys. Rev. Lett. 109 (2012) Read online 


Y. Kohama, et al, AC measurement of heat capacity and magnetocaloric effect for pulsed magnetic fields, Rev. Sci. Instrum. 81 (2010) Read online 


A.A. Aczel, et al, Bose-Einstein condensation of triplons in Ba3Cr2O8, Phys. Rev. B. 79 (2009) Read online 


B. Thielemann, et al, Field-controlled magnetic order in the quantum spin-ladder system (Hpip)2CuBr4, Phys. Rev. B. 79 (2009) Read online 


A.A. Aczel, et al, Field-Induced Bose-Einstein Condensation of Triplons Up to 8 K in Sr3Cr2O8, Phys. Rev. Lett. 103 (2009) Read online 


E.C. Samulon, et al, Ordered magnetic phases of the frustrated spin-dimer compound Ba3Mn2O8, Phys. Rev. B. 77 (2008) Read online 


V.S. Zapf, et al, Bose-Einstein Condensation of S = 1 Ni spin degrees of freedom in NiCl2-4SC(NH2)2, Phys. Rev. Lett. 96 (2006) Read online 


M. Jaime, et al, Magnetic-Field-Induced Condensation of Triplons in Han purple Pigment BaCuSi2O6, (2004) Read online 


J.C. Lashley, et al, Critical examination of heat capacity measurements made on a Quantum Design physical property measurement system, Cryogenics 43 (2003) Read online 


M. Jaime, et al, High magnetic field studies of the hidden order transition in URu2Si2, Phys. Rev. Lett. 89 (2002) Read online 


M. Jaime, et al, Closing the gap in the Kondo Insulator Ce3Bi4Pt3 with magnetic fields: A 60T specific heat study, Nat. 405 (2000) Read online 

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Last modified on 29 September 2014