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Terahertz magnon and crystal-field transition manipulated by R3+-Fe3+interaction in Sm0.5Pr0.5FeO3

Journal Article


Abstract


  • We use terahertz (THz) magnetic and electric fields to investigate the magnetic and optoelectronic responses of the Sm0.5Pr0.5FeO3(SPFO) crystal, respectively, by THz time-domain spectroscopy. It is found that the spin reorientation transition (SRT) in SPFO occurs in the temperature range of 175-210 K. The SRT is not observed in PrFeO3. The quasi-antiferromagnetic magnon frequency has a blue-shift from 0.42 THz (PrFeO3) to 0.46 THz (SPFO) at room temperature, due to the enhanced anisotropy constant. The refractive index of SPFO in the THz frequency decreases around 3% compared with that of the PrFeO3crystal. In addition, it can be found that the energy scale of crystal-field transitions has a red-shift for the doped single crystal. We expect our results to make rare-earth orthoferrites accessible to potential applications in THz spintronic devices.

UOW Authors


  •   Liu, Xiumei (external author)
  •   Xie, Tao (external author)
  •   Guo, Jiajia (external author)
  •   Yang, Senmiao (external author)
  •   Song, Yuna (external author)
  •   Lin, Xian (external author)
  •   Cao, Shixun (external author)
  •   Cheng, Zhenxiang
  •   Jin, Zuanming (external author)
  •   Wu, Anhua (external author)
  •   Ma, Guohong (external author)
  •   Yao, Jianquan (external author)

Publication Date


  • 2018

Citation


  • Liu, X., Xie, T., Guo, J., Yang, S., Song, Y., Lin, X., Cao, S., Cheng, Z., Jin, Z., Wu, A., Ma, G. & Yao, J. (2018). Terahertz magnon and crystal-field transition manipulated by R3+-Fe3+interaction in Sm0.5Pr0.5FeO3. Applied Physics Letters, 113 (2), 022401-1-022401-5.

Scopus Eid


  • 2-s2.0-85049737712

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3191

Start Page


  • 022401-1

End Page


  • 022401-5

Volume


  • 113

Issue


  • 2

Place Of Publication


  • United States

Abstract


  • We use terahertz (THz) magnetic and electric fields to investigate the magnetic and optoelectronic responses of the Sm0.5Pr0.5FeO3(SPFO) crystal, respectively, by THz time-domain spectroscopy. It is found that the spin reorientation transition (SRT) in SPFO occurs in the temperature range of 175-210 K. The SRT is not observed in PrFeO3. The quasi-antiferromagnetic magnon frequency has a blue-shift from 0.42 THz (PrFeO3) to 0.46 THz (SPFO) at room temperature, due to the enhanced anisotropy constant. The refractive index of SPFO in the THz frequency decreases around 3% compared with that of the PrFeO3crystal. In addition, it can be found that the energy scale of crystal-field transitions has a red-shift for the doped single crystal. We expect our results to make rare-earth orthoferrites accessible to potential applications in THz spintronic devices.

UOW Authors


  •   Liu, Xiumei (external author)
  •   Xie, Tao (external author)
  •   Guo, Jiajia (external author)
  •   Yang, Senmiao (external author)
  •   Song, Yuna (external author)
  •   Lin, Xian (external author)
  •   Cao, Shixun (external author)
  •   Cheng, Zhenxiang
  •   Jin, Zuanming (external author)
  •   Wu, Anhua (external author)
  •   Ma, Guohong (external author)
  •   Yao, Jianquan (external author)

Publication Date


  • 2018

Citation


  • Liu, X., Xie, T., Guo, J., Yang, S., Song, Y., Lin, X., Cao, S., Cheng, Z., Jin, Z., Wu, A., Ma, G. & Yao, J. (2018). Terahertz magnon and crystal-field transition manipulated by R3+-Fe3+interaction in Sm0.5Pr0.5FeO3. Applied Physics Letters, 113 (2), 022401-1-022401-5.

Scopus Eid


  • 2-s2.0-85049737712

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/3191

Start Page


  • 022401-1

End Page


  • 022401-5

Volume


  • 113

Issue


  • 2

Place Of Publication


  • United States