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Title: Electronic structure and direct observation of ferrimagnetism in multiferroic hexagonal YbFeO 3

Journal Article · · Physical Review B
 [1];  [1];  [1];  [2];  [3];  [1];  [4];  [5];  [6];  [1];  [7];  [3];  [1];  [1];  [1]
  1. Univ. of Nebraska, Lincoln, NE (United States)
  2. Xi'an Jiaotong Univ., Xi'an (People's Republic of China); Univ. of Nebraska, Lincoln, NE (United States)
  3. Bryn Mawr College, Bryn Mawr, PA (United States)
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
  5. Canadian Light Source, Saskatoon, SK (Canada)
  6. Argonne National Lab. (ANL), Argonne, IL (United States)
  7. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

The magnetic interactions between rare-earth and Fe ions in hexagonal rare-earth ferrites (h-RFeO3), may amplify the weak ferromagnetic moment on Fe, making these materials more appealing as multiferroics. To elucidate the interaction strength between the rare-earth and Fe ions as well as the magnetic moment of the rare-earth ions, element-specific magnetic characterization is needed. Using x-ray magnetic circular dichroism, we have studied the ferrimagnetism in h-YbFeO3 by measuring the magnetization of Fe and Yb separately. The results directly show antialignment of magnetization of Yb and Fe ions in h-YbFeO3 at low temperature, with an exchange field on Yb of about 17 kOe. The magnetic moment of Yb is about 1.6μB at low temperature, significantly reduced compared with the 4.5μB moment of a free Yb3+. In addition, the saturation magnetization of Fe in h-YbFeO3 has a sizable enhancement compared with that in h-LuFeO3. These findings directly demonstrate that ferrimagnetic order exists in h-YbFeO3; they also account for the enhancement of magnetization and the reduction of coercivity in h-YbFeO3 compared with those in h-LuFeO3 at low temperature, suggesting an important role for the rare-earth ions in tuning the multiferroic properties of h-RFeO3.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
Semiconductor Research Corporation (SRC); USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357; AC02-05CH11231
OSTI ID:
1376701
Alternate ID(s):
OSTI ID: 1366580; OSTI ID: 1634033
Journal Information:
Physical Review B, Vol. 95, Issue 22; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

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Cited By (3)

The impact of Ir doping on the electrical properties of YbFe1−xIrxO3 perovskite-oxide compounds journal December 2019
Structural studies and physical properties of hexagonal-YbFeO 3 thin films journal January 2019
Frequency and temperature-dependent electric modulus spectroscopy of osmium-doped YbFeO 3 structure journal November 2019

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