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Magnetic-field-induced vortex-lattice transition in HgBa2CuO4+δ
2017
Physical review B
Measurements of the ^17O nuclear magnetic resonance (NMR) quadrupolar spectrum of apical oxygen in HgBa_2CuO_4+δ were performed over a range of magnetic fields from 6.4 to 30 T in the superconducting state. Oxygen isotope exchanged single crystals were investigated with doping corresponding to superconducting transition temperatures from 74 K underdoped, to 78 K overdoped. The apical oxygen site was chosen since its NMR spectrum has narrow quadrupolar satellites that are well separated from any
doi:10.1103/physrevb.95.024512
fatcat:fstjeygcpbb2bpe5zojiepv4vy