Field Induced Multiple Superconducting Phases in UTe_{2} along Hard Magnetic Axis.
Phys Rev Lett
; 130(19): 196002, 2023 May 12.
Article
em En
| MEDLINE
| ID: mdl-37243663
ABSTRACT
The superconducting (SC) phase diagram in uranium ditelluride is explored under magnetic fields (H) along the hard magnetic b axis using a high-quality single crystal with T_{c}=2.1 K. Simultaneous electrical resistivity and ac magnetic susceptibility measurements discern low- and high-field SC (LFSC and HFSC, respectively) phases with contrasting field-angular dependence. Crystal quality increases the upper critical field of the LFSC phase, but the H^{*} of â¼15 T, at which the HFSC phase appears, is always the same through the various crystals. A phase boundary signature is also observed inside the LFSC phase near H^{*}, indicating an intermediate SC phase characterized by small flux pinning forces.
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MEDLINE
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En
Ano de publicação:
2023
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Article