Growth and superconductivity of FeSe{sub x} crystals.
Iron selenide (FeSe{sub x}) 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 coexistence of superconductivity and ferromagnetism.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 972192
- Report Number(s):
- ANL/MSD/JA-65992; APPLAB; TRN: US201006%%988
- Journal Information:
- Appl. Phys. Lett., Vol. 94, Issue 2009; ISSN 0003-6951
- Country of Publication:
- United States
- Language:
- ENGLISH
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