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Title: Polarized neutron measurements of the internal magnetization of a ferrimagnet across its compensation temperature

Journal Article · · Journal of Magnetism and Magnetic Materials
 [1]; ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [2];  [1];  [1]; ORCiD logo [4]; ORCiD logo [1];  [5];  [1]; ORCiD logo [6]; ORCiD logo [6];  [6]; ORCiD logo [6]; ORCiD logo [6]; ORCiD logo [6]
  1. Indiana University, Bloomington, IN (United States); Center for Exploration of Energy and Matter, Bloomington, IN (United States); Indiana University Center for Spacetime Symmetries, Bloomington, IN (United States)
  2. Georgia State University, Atlanta, GA (United States)
  3. University of Illinois at Urbana-Champaign, IL (United States)
  4. Indiana University, Bloomington, IN (United States); Center for Exploration of Energy and Matter, Bloomington, IN (United States)
  5. University of Notre Dame, IN (United States)
  6. Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

We present the first polarized neutron transmission image of a model Néel ferrimagnetic material, polycrystalline terbium iron garnet (Tb3Fe5O12, TbIG for short), as it is taken through its compensation temperature Tcomp where the macroscopic magnetization vanishes. Our polarized neutron imaging data and the additional supporting measurements using neutron spin echo spectroscopy and SQUID magnetometry are all consistent with a vanishing internal magnetization at Tcomp.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725; SC0010443
OSTI ID:
2586909
Journal Information:
Journal of Magnetism and Magnetic Materials, Journal Name: Journal of Magnetism and Magnetic Materials Vol. 629; ISSN 0304-8853
Publisher:
Elsevier BVCopyright Statement
Country of Publication:
United States
Language:
English

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