TY - JOUR
T1 - Spin susceptibility of the topological superconductor UPt3 from polarized neutron diffraction
AU - Gannon, W. J.
AU - Halperin, W. P.
AU - Eskildsen, M. R.
AU - Dai, Pengcheng
AU - Hansen, U. B.
AU - Lefmann, K.
AU - Stunault, A.
N1 - Publisher Copyright:
© 2017 American Physical Society.
PY - 2017/7/10
Y1 - 2017/7/10
N2 - Experiment and theory indicate that UPt3 is a topological superconductor in an odd-parity state, based in part from the temperature independence of the NMR Knight shift. However, quasiparticle spin-flip scattering near a surface, where the Knight shift is measured, might be responsible. We use polarized neutron scattering to measure the bulk susceptibility with H¥c, finding consistency with the Knight shift but inconsistency with theory for this field orientation. We infer that neither spin susceptibility nor a Knight shift are a reliable indication of odd parity.
AB - Experiment and theory indicate that UPt3 is a topological superconductor in an odd-parity state, based in part from the temperature independence of the NMR Knight shift. However, quasiparticle spin-flip scattering near a surface, where the Knight shift is measured, might be responsible. We use polarized neutron scattering to measure the bulk susceptibility with H¥c, finding consistency with the Knight shift but inconsistency with theory for this field orientation. We infer that neither spin susceptibility nor a Knight shift are a reliable indication of odd parity.
UR - https://www.scopus.com/pages/publications/85026920668
UR - https://www.scopus.com/inward/citedby.url?scp=85026920668&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.96.041111
DO - 10.1103/PhysRevB.96.041111
M3 - Article
AN - SCOPUS:85026920668
SN - 2469-9950
VL - 96
JO - Physical Review B
JF - Physical Review B
IS - 4
M1 - 041111
ER -