Title: Localized magnetic moments in metallic SrB6 single crystals

Journal Article · · Journal of Physics. Condensed Matter
ORCiD logo [1];  [2]; ORCiD logo [3];  [4]; ORCiD logo [5];  [5];  [6]
  1. CSIC–Universidad de Zaragoza (Spain)
  2. Florida State Univ., Tallahassee, FL (United States)
  3. Universidad de Zaragoza (Spain)
  4. CSIC–Universidad de Zaragoza (Spain); Fundación ARAID, Zaragoza (Spain)
  5. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  6. Univ. of California, Irvine, CA (United States)
+ Show Author Affiliations

We report the specific heat Cp of metallic SrB6 single crystals shows an anomalous behavior for T ≲ 5 K which varies strongly with an applied magnetic field. This is consistent with a two-level Schottky system. We ascribe the excess of Cp in this temperature range to localized magnetic moments. In addition, features that are attributable to a partial ferromagnetic polarization of a conduction electron gas are observed. Finally, these results are supported by magnetization measurements and are compatible with the transport properties reported previously (Stankiewicz 2016 Phys. Rev. B 94 125141).

Research Organization:
Los Alamos National Laboratory (LANL)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1489950
Report Number(s):
LA-UR-17-30686
Journal Information:
Journal of Physics. Condensed Matter, Journal Name: Journal of Physics. Condensed Matter Journal Issue: 6 Vol. 31; ISSN 0953-8984
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

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