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Pauli-limited effect in the magnetic phase diagram of FeSexTe1−x thin films

Journal Article


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Abstract


  • We present a detailed investigation on the doping dependence of the upper critical fieldHc2(T) of FeSexTe1−xthin films (0.18 ≤ x ≤ 0.90) by measuring the electrical resistivity as a function of magnetic field. The Hc2(T) curves exhibit a downturn behavior with decreasing temperature in all the samples, owing to the Pauli-limited effect (spin paramagnetic effect). The Pauli-limited effect on the upper critical field can be monotonically modulated by variation of the Se/Te composition. Our results show that Te-doping induced disorder and excess Fe atoms give rise to enhancement of the Pauli-limited effect.

Authors


  •   Zhuang, Jincheng (external author)
  •   Li, Zhi
  •   Xu, Xun
  •   Wang, Li (external author)
  •   Yeoh, Wai Kong (external author)
  •   Xing, X Z. (external author)
  •   Shi, Zhixiang (external author)
  •   Wang, Xiaolin
  •   Du, Yi
  •   Dou, Shi Xue

Publication Date


  • 2015

Citation


  • Zhuang, J. C., Li, Z., Xu, X., Wang, L., Yeoh, W. K., Xing, X. Z., Shi, Z. X., Wang, X. L., Du, Y. & Dou, S. X. (2015). Pauli-limited effect in the magnetic phase diagram of FeSexTe1−x thin films. Applied Physics Letters, 107 (22), 222601-1-222601-5.

Scopus Eid


  • 2-s2.0-84948660698

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2649&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1647

Has Global Citation Frequency


Start Page


  • 222601-1

End Page


  • 222601-5

Volume


  • 107

Issue


  • 22

Place Of Publication


  • United States

Abstract


  • We present a detailed investigation on the doping dependence of the upper critical fieldHc2(T) of FeSexTe1−xthin films (0.18 ≤ x ≤ 0.90) by measuring the electrical resistivity as a function of magnetic field. The Hc2(T) curves exhibit a downturn behavior with decreasing temperature in all the samples, owing to the Pauli-limited effect (spin paramagnetic effect). The Pauli-limited effect on the upper critical field can be monotonically modulated by variation of the Se/Te composition. Our results show that Te-doping induced disorder and excess Fe atoms give rise to enhancement of the Pauli-limited effect.

Authors


  •   Zhuang, Jincheng (external author)
  •   Li, Zhi
  •   Xu, Xun
  •   Wang, Li (external author)
  •   Yeoh, Wai Kong (external author)
  •   Xing, X Z. (external author)
  •   Shi, Zhixiang (external author)
  •   Wang, Xiaolin
  •   Du, Yi
  •   Dou, Shi Xue

Publication Date


  • 2015

Citation


  • Zhuang, J. C., Li, Z., Xu, X., Wang, L., Yeoh, W. K., Xing, X. Z., Shi, Z. X., Wang, X. L., Du, Y. & Dou, S. X. (2015). Pauli-limited effect in the magnetic phase diagram of FeSexTe1−x thin films. Applied Physics Letters, 107 (22), 222601-1-222601-5.

Scopus Eid


  • 2-s2.0-84948660698

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=2649&context=aiimpapers

Ro Metadata Url


  • http://ro.uow.edu.au/aiimpapers/1647

Has Global Citation Frequency


Start Page


  • 222601-1

End Page


  • 222601-5

Volume


  • 107

Issue


  • 22

Place Of Publication


  • United States