Pressure-induced Magnetic Transition in a Single Crystal of YbCo<SUB>2</SUB>Zn<SUB>20</SUB>

• Saiga Yuta

  Graduate School of Science and Engineering, Saitama University

• Matsubayashi Kazuyuki

  Institute for Solid State Physics, University of Tokyo

• Fujiwara Tetsuya

  Graduate School of Science and Engineering, Yamaguchi University

• Kosaka Masashi

  Graduate School of Science and Engineering, Saitama University

• Katano Susumu

  Graduate School of Science and Engineering, Saitama University

• Hedo Masato

  Faculty of Science, University of the Ryukyus

• Matsumoto Takehiko

  Institute for Solid State Physics, University of Tokyo

• Uwatoko Yoshiya

  Institute for Solid State Physics, University of Tokyo

Bibliographic Information

Other Title

• Pressure-induced magnetic transition in a single crystal of YbCo2Zn20

Abstract

We have measured the electrical resistivity of a single crystal of YbCo₂Zn₂₀ at pressures up to 2.37 GPa and at temperatures from 50 mK to 300 K. Above a critical pressure P_c (∼1 GPa), we have found a resistivity anomaly at T_M (∼0.15 K at 1 GPa) that increases with the pressure. At the ambient pressure, the system shows a nonmagnetic ground state described by the Fermi-liquid model. The T² coefficient of the electrical resistivity A strongly increases with the pressure upon approaching P_c. However, in the vicinity of P_c, the temperature dependence of the resistivity deviates from the Fermi-liquid description. These observations suggest that the application of hydrostatic pressure induces a magnetically ordered state for P≥P_c and T≤T_M.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 77 (5), 053710-053710, 2008

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• YbCo<SUB>2</SUB>Zn<SUB>20</SUB>
• heavy fermion
• pressure measurement
• pressure-induced magnetic transition
• QCP

Details

• CRID: 1390001204197529216
• NII Article ID: 110006665987
• NII Article ID: 130005436464
• NII Article ID: 210000107221
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.77.053710
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 9489060
• Web Site: http://id.nii.ac.jp/1586/00013281/
• Web Site: http://id.ndl.go.jp/bib/9489060
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I9489060
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.77.053710
• Text Lang: en
• Data Source:
  • JaLC
  • IRDB
  • NDL
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed