Searching for Gap Zeros in Sr2RuO4 via Field-Angle-Dependent Specific-Heat Measurement

Field-dependent specific heat and multiple superconducting phases in UPt3.

Measurement of temperature-dependent specific heat of biological tissues.

We measured specific heat directly by heating a sample uniformly between two electrodes by an electric generator. We minimized heat loss by styrofoam insulation. We measured temperature from multiple thermocouples at temperatures from 25 degrees C to 80 degrees C while heating the sample, and corrected for heat loss. We confirm method accuracy with a 2.5% agar-0.4% saline physical model and obt...

Angle-resolved photoemission study of Sr2RuO4.

We present high-resolution ~HR! angle-resolved photoemission spectroscopy ~ARPES! measurements of the noncuprate layered perovskite superconductor Sr2RuO4 . ARPES spectra of the whole valence-band region obtained along two high-symmetry directions in the Brillouin zone show clear dispersion, generally similar to that of a band calculation. However, HRARPES measurements taken in the vicinity of ...

Field Dependent Specific-Heat of Rare Earth Manganites

The low temperature specific heat C(H) of several rare-earth manganites (La0.7Sr0.3MnO3, Nd0.5Sr0.5MnO3, Pr0.5Sr0.5MnO3, La0.67Ca0.33MnO3, La0.5Ca0.5MnO3, La0.45Ca0.55MnO3 and La0.33Ca0.67MnO3) was measured as a function of magnetic field. We observed behaviour consistent with thermodynamic expectations, i.e., C(H) decreases with field for ferromagnetic metallic compounds by an amount which is ...

Specific Heat Study of the Field - Induced Magnetic Ordering in the Spin Gap System

Specific heat measurements have been performed in the coupled dimer system TlCuCl 3 , which has a singlet ground state with the excitation gap ∆ ≃ 7.5K. The cusplike anomaly indicative of the 3D magnetic ordering was clearly observed in magnetic fields higher than the critical field H c corresponding to the gap ∆. The phase boundary determined by the present specific heat measurements coincides...