Specific Heat of Pr$_{\mathrm{1-x}}$Nd$_{\mathrm{x}}$Os$_{4}$Sb$_{12}$

ORAL

Abstract

The filled skutterudite compound, PrOs$_{4}$Sb$_{12}$, displays unconventional superconductivity at a relatively low critical temperature Tc$=$1.85K. The underlining physics behind this heavy fermion superconductor compound is largely unknown. To gain better insight into the underlining physics, we need to study the effect of ferromagnetism on unconventional superconductivity by using Neodymium-doped compounds, Pr$_{\mathrm{1-x}}$Nd$_{\mathrm{x}}$Os$_{4}$Sb$_{12}$. One of the parameters to study is the differences in their thermodynamic property. The specific heats of these compounds were measured using finite heat pulse relaxation calorimetry in an 11K cryocooler system. This presentation will report on the progress of the specific heat measurement of the doped compound Pr$_{\mathrm{1-x.}}$Nd$_{\mathrm{x}}$Os$_{4}$Sb$_{12}$ (x$=$1, 0.5) and the physics behind measuring heat capacity.

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Authors

  • Banchong Somsanuk

    Physics/California State University, Fresno

  • Nilgun Sungar

    Department of Physics and Astronomy, University of California, Irvine, University of California, Irvine, California State University, Fresno, Physics Department, University of California, Santa Cruz, CA, 95064, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, Seogang University, Pohang University of Science \& Technology, UC Santa Cruz, Trinity College, Hartford, Los Alamos National Laboratory, University of Connecticut, Storrs, CSU Long Beach, Physics/Hokkaido University, Japan, Physics/University of California, San Deigo, Physics/California State University, Fresno, CSU Stanislaus, University of California, Santa Barbara, Instituted of Astronomy, University of Cambridge, UK, Max-Planck Institute for Radio Astronomy, Bonn, Germany, Institute of Astronomy, University of Cambridge, UK, California Polytechnic State University, San Luis Obispo, SpaceX, Northrop-Grumman, Cal Poly San Luis Obispo, Department of Physics, University of California at Davis, Davis 95616, United States Department of Agriculture-Agriculture Research Service, Chemistry/California State University Fresno, Physics/California State University Fresno, University of California Santa Barbara, University of California Merced, UC Merced, Stanford University, New Economic School, California Polytechnic State University San Luis Obispo, Indiana University - Purdue University Indianapolis, California Polytechnic State University, San Luis Obispo, Chair of the Physics Department

  • Nilgun Sungar

    Department of Physics and Astronomy, University of California, Irvine, University of California, Irvine, California State University, Fresno, Physics Department, University of California, Santa Cruz, CA, 95064, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, Seogang University, Pohang University of Science \& Technology, UC Santa Cruz, Trinity College, Hartford, Los Alamos National Laboratory, University of Connecticut, Storrs, CSU Long Beach, Physics/Hokkaido University, Japan, Physics/University of California, San Deigo, Physics/California State University, Fresno, CSU Stanislaus, University of California, Santa Barbara, Instituted of Astronomy, University of Cambridge, UK, Max-Planck Institute for Radio Astronomy, Bonn, Germany, Institute of Astronomy, University of Cambridge, UK, California Polytechnic State University, San Luis Obispo, SpaceX, Northrop-Grumman, Cal Poly San Luis Obispo, Department of Physics, University of California at Davis, Davis 95616, United States Department of Agriculture-Agriculture Research Service, Chemistry/California State University Fresno, Physics/California State University Fresno, University of California Santa Barbara, University of California Merced, UC Merced, Stanford University, New Economic School, California Polytechnic State University San Luis Obispo, Indiana University - Purdue University Indianapolis, California Polytechnic State University, San Luis Obispo, Chair of the Physics Department

  • Nilgun Sungar

    Department of Physics and Astronomy, University of California, Irvine, University of California, Irvine, California State University, Fresno, Physics Department, University of California, Santa Cruz, CA, 95064, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, Seogang University, Pohang University of Science \& Technology, UC Santa Cruz, Trinity College, Hartford, Los Alamos National Laboratory, University of Connecticut, Storrs, CSU Long Beach, Physics/Hokkaido University, Japan, Physics/University of California, San Deigo, Physics/California State University, Fresno, CSU Stanislaus, University of California, Santa Barbara, Instituted of Astronomy, University of Cambridge, UK, Max-Planck Institute for Radio Astronomy, Bonn, Germany, Institute of Astronomy, University of Cambridge, UK, California Polytechnic State University, San Luis Obispo, SpaceX, Northrop-Grumman, Cal Poly San Luis Obispo, Department of Physics, University of California at Davis, Davis 95616, United States Department of Agriculture-Agriculture Research Service, Chemistry/California State University Fresno, Physics/California State University Fresno, University of California Santa Barbara, University of California Merced, UC Merced, Stanford University, New Economic School, California Polytechnic State University San Luis Obispo, Indiana University - Purdue University Indianapolis, California Polytechnic State University, San Luis Obispo, Chair of the Physics Department

  • Nilgun Sungar

    Department of Physics and Astronomy, University of California, Irvine, University of California, Irvine, California State University, Fresno, Physics Department, University of California, Santa Cruz, CA, 95064, Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, Seogang University, Pohang University of Science \& Technology, UC Santa Cruz, Trinity College, Hartford, Los Alamos National Laboratory, University of Connecticut, Storrs, CSU Long Beach, Physics/Hokkaido University, Japan, Physics/University of California, San Deigo, Physics/California State University, Fresno, CSU Stanislaus, University of California, Santa Barbara, Instituted of Astronomy, University of Cambridge, UK, Max-Planck Institute for Radio Astronomy, Bonn, Germany, Institute of Astronomy, University of Cambridge, UK, California Polytechnic State University, San Luis Obispo, SpaceX, Northrop-Grumman, Cal Poly San Luis Obispo, Department of Physics, University of California at Davis, Davis 95616, United States Department of Agriculture-Agriculture Research Service, Chemistry/California State University Fresno, Physics/California State University Fresno, University of California Santa Barbara, University of California Merced, UC Merced, Stanford University, New Economic School, California Polytechnic State University San Luis Obispo, Indiana University - Purdue University Indianapolis, California Polytechnic State University, San Luis Obispo, Chair of the Physics Department