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Title: Evolution of Magnetic Order from the Localized to the Itinerant Limit

Journal Article · · Physical Review Letters
 [1];  [2];  [3];  [3];  [3];  [4];  [5];  [4];  [6];  [7];  [8];  [4];  [9]
  1. Paul Scherrer Inst., Villigen (Switzerland). Lab. for Neutron Scattering and Imaging; Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
  2. Paul Scherrer Inst., Villigen (Switzerland). Lab. for Scientific Developments and Novel Materials; SLAC National Accelerator Lab., Menlo Park, CA (United States). Stanford Institute for Materials and Energy Science (SIMES)
  3. Paul Scherrer Inst., Villigen (Switzerland). Lab. for Scientific Developments and Novel Materials
  4. Paul Scherrer Inst., Villigen (Switzerland). Lab. for Neutron Scattering and Imaging
  5. Univ. of Grenoble Alpes (France). CEA, INAC-MEM
  6. Paul Scherrer Inst. (PSI), Villigen (Switzerland). Swiss Light Source
  7. Munich Univ. of Technology (Germany)
  8. Univ. of Grenoble Alpes (France). CEA, INAC-PHELIQS
  9. Paul Scherrer Inst., Villigen (Switzerland). Lab. for Scientific Developments and Novel Materials and Lab. for Neutron Scattering and Imaging

Quantum materials that feature magnetic long-range order often reveal complex phase diagrams when localized electrons become mobile. In many materials magnetism is rapidly suppressed as electronic charges dissolve into the conduction band. In materials where magnetism persists, it is unclear how the magnetic properties are affected. Here we study the evolution of the magnetic structure in Nd1-xCexCoIn5 from the localized to the highly itinerant limit. We observe two magnetic ground states inside a heavy-fermion phase that are detached from unconventional superconductivity. The presence of two different magnetic phases provides evidence that increasing charge delocalization affects the magnetic interactions via anisotropic band hybridization.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
SC0012704
OSTI ID:
1562477
Report Number(s):
BNL--212085-2019-JAAM
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 123; ISSN 0031-9007; ISSN PRLTAO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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