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Title: The prominent role of oxygen in the multiferroicity of DyMnO3 and TbMnO3: a resonant soft x-ray scattering spectroscopy study

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [1];  [5];  [5];  [6];  [7];  [8];  [5]
  1. National Synchotron Radiation Research Center, Hsinchu (Taiwan)
  2. National Tsing Hua Univ., Hsinchu (Taiwan); Academia Sinica, Taipei (Taiwan)
  3. Tamkang Univ., Taipei (Taiwan)
  4. New York Univ. (NYU), NY (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  6. Brookhaven National Lab. (BNL), Upton, NY (United States)
  7. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS); National Chiao Tung Univ., Hsinchu (Taiwan)
  8. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States). Linac Coherent Light Source (LCLS)

Oxygen is known to play an important role in the multiferroicity of rare earth manganites; however, how this role changes with rare earth elements is still not fully understood. To address this question, we have used resonant soft x-ray scattering spectroscopy to study the F-type (0,τ,0) diffraction peak from the antiferromagnetic order in DyMnO 3 and TbMnO 3 . We focus on the measurements at O K edge of these two manganites, supplemented by the results at Mn L2 and Dy M5 edge of DyMnO 3 . We show that the electronic states of different elements are coupled more strongly in DyMnO 3 than in TbMnO 3 , presumably due to the stronger lattice distortion and the tendency to develop E-type antiferromagnetism in the ferroelectric state that promote the orbital hybridization. We also show that the anomaly in the correlation length of (0,τ,0) peak in DyMnO 3 signifies the exchange interaction between Mn and rare earth spins. Our findings reveal the prominent role of oxygen orbitals in the multiferroicity of rare earth manganites and the distinct energetics between them.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC00112704; AC02-05CH11231
OSTI ID:
1303015
Alternate ID(s):
OSTI ID: 1267541; OSTI ID: 1456953
Report Number(s):
BNL-112490-2016-JA; R&D Project: PO011; KC0201060
Journal Information:
Physical Review B, Vol. 94, Issue 3; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

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Cited By (1)

Isotropic magnetoelectric effect in Tb 1 x Gd x Mn 2 O 5 studied by resonant x-ray scattering journal September 2019