A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Absence of spontaneous magnetism associated with a possible time-reversal symmetry breaking state beneath the surface of (110)-oriented YBa2Cu3O7-delta superconducting films
Tekijät: Saadaoui H, Salman Z, Prokscha T, Suter A, Huhtinen H, Paturi P, Morenzoni E
Kustantaja: AMER PHYSICAL SOC
Julkaisuvuosi: 2013
Journal: Physical Review B
Tietokannassa oleva lehden nimi: PHYSICAL REVIEW B
Lehden akronyymi: PHYS REV B
Artikkelin numero: ARTN 180501
Numero sarjassa: 18
Vuosikerta: 88
Numero: 18
Sivujen määrä: 5
ISSN: 1098-0121
DOI: https://doi.org/10.1103/PhysRevB.88.180501
Tiivistelmä
We report the results of a search for spontaneous magnetism due to a time-reversal symmetry breaking phase in the superconducting state of (110)-oriented YBa2Cu3O7-delta films, expected near the surface in this geometry. Zero field and weak transverse field measurements performed using the low-energy muon spin rotation technique with muons implanted a few nm inside optimally doped YBa2Cu3O7-delta-(110) films show no appearance of spontaneous magnetic fields below the superconducting temperature down to 2.9 K. Our results give an upper limit of similar to 0.02 mT for putative spontaneous internal fields.
We report the results of a search for spontaneous magnetism due to a time-reversal symmetry breaking phase in the superconducting state of (110)-oriented YBa2Cu3O7-delta films, expected near the surface in this geometry. Zero field and weak transverse field measurements performed using the low-energy muon spin rotation technique with muons implanted a few nm inside optimally doped YBa2Cu3O7-delta-(110) films show no appearance of spontaneous magnetic fields below the superconducting temperature down to 2.9 K. Our results give an upper limit of similar to 0.02 mT for putative spontaneous internal fields.
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