Field-Orientation Dependent Heat Capacity Measurements at Low Temperatures with a Vector Magnet System

Abstract

We describe a heat capacity measurement system for the study of the field-orientation dependence for temperatures down to 50 mK. A "Vector Magnet" combined with a mechanical rotator for the dewar enables the rotation of the magnetic field without mechanical heating in the cryostat by friction. High reproducibility of the field direction, as well as an angular resolution of better than 0.01 degree, is obtained. This system is applicable to other kinds of measurements which require a large sample space or an adiabatic sample environment, and can also be used with multiple refrigerator inserts interchangeably.

arXiv comment7 pages, 8 figures

References in corpus (4)

• Gap Structure of the Spin-Triplet Superconductor Sr2RuO4 Determined from the Field-Orientation Dependence of Specific Heat
• Anisotropic thermodynamics of d-wave superconductors in the vortex state
• Superconducting Double Transition and the Upper Critical Field Limit of Sr2RuO4 in Parallel Magnetic Fields
• Detailed study of the ac susceptibility of Sr2RuO4 in oriented magnetic fields

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• Angular dependence of the upper critical field of Sr2RuO4
• Magnetic-Field Variations of the Pair-Breaking Effects of Superconductivity in (TMTSF)2ClO4
• Uniaxial-strain Control of Nematic Superconductivity in Sr${}_x$Bi${}_2$Se${}_3$
• Specific-heat evidence of the first-order superconducting transition in Sr2RuO4
• Field-Induced Transition on Triangular Plane in the Spin Ice Compound Dy2Ti2O7
• Nodal Superconducting Order Parameter and Thermodynamic Phase Diagram of (TMTSF)2ClO4
• Violation of Emergent Rotational Symmetry in the Hexagonal Kagome Superconductor CsV3Sb5
• Field-induced confinement in (TMTSF)2ClO4 under accurately aligned magnetic fields
• Field-rotational magnetocaloric effect: A new experimental technique for accurate measurement of the anisotropic magnetic entropy
• Assessment of the RE(OH)3 Ising-like Magnetic Materials as Possible Candidates for the Study of Transverse-Field-Induced Quantum Phase Transitions
• Quenched metastable vortex states in Sr2RuO4
• Finite-thickness effect and spin polarization of the even-denominator fractional quantum Hall states
• Step-by-step design guide of a cryogenic three-axis vector magnet