Growth and Superconductivity of FeSex Crystals

U. Patel; J. Hua; S. H. Yu; S. Avci; Z. L. Xiao; H. Claus; J. Schlueter; V. V. Vlasko-Vlasov; U. Welp; W. K. Kwok

doi:10.1063/1.3093838

Growth and Superconductivity of FeSex Crystals

Superconductivity 2009-11-13 v1

Authors: U. Patel , J. Hua , S. H. Yu , S. Avci , Z. L. Xiao , H. Claus , J. Schlueter , V. V. Vlasko-Vlasov , U. Welp , W. K. Kwok

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

Iron selenide (FeSex) crystals with lateral dimensions up to millimeters were grown via a vapor self-transport method. The crystals consist of the dominant alpha - phase with trace amounts of beta- phase as identified by powder x-ray diffraction. With four-probe resistance measurements we obtained a zero-resistance critical temperature of 7.5 K and a superconducting onset transition temperature of up to 11.8 K in zero magnetic field as well as an anisotropy of 1.5 +- 0.1 for the critical field. Magnetization measurements on individual crystals reveal the co-existence of superconductivity and ferromagnetism.

Keywords

iron selenide crystal growth vapor self-transport superconductivity critical temperature anisotropy ferromagnetism

Cite

@article{arxiv.0902.2240,
  title  = {Growth and Superconductivity of FeSex Crystals},
  author = {U. Patel and J. Hua and S. H. Yu and S. Avci and Z. L. Xiao and H. Claus and J. Schlueter and V. V. Vlasko-Vlasov and U. Welp and W. K. Kwok},
  journal= {arXiv preprint arXiv:0902.2240},
  year   = {2009}
}

Comments

To appear in Applied Physics Letters

Growth and Superconductivity of FeSex Crystals

Abstract

Keywords

Cite

Comments

Related papers