This title appears in the Scientific Report :
2014
Please use the identifier:
http://hdl.handle.net/2128/9124 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.89.235118 in citations.
Signature of superconductivity in UBe${_1}$${_3}$ as seen by neutron scattering: Superconducting and magnetic energy scales
Signature of superconductivity in UBe${_1}$${_3}$ as seen by neutron scattering: Superconducting and magnetic energy scales
We here present inelastic neutron scattering results on the strongly correlated cubic superconductor UBe13(Tc = 0.85 K) obtained on a large single crystal by high-resolution cold neutron three-axis spectroscopy. Weobserved spin dynamics at a unique momentum space position building up below T ∼ 50 K...
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Personal Name(s): | Hiess, A. (Corresponding Author) |
---|---|
Schneidewind, A. / Stockert, O. / Fisk, Z. | |
Contributing Institute: |
Streumethoden; PGI-4 JARA-FIT; JARA-FIT JCNS-FRM-II; JCNS-FRM-II Streumethoden; JCNS-2 |
Published in: | Physical Review B Physical review / B, 89 89 (2014 2014) 23 23, S. 235118 235118 |
Imprint: |
College Park, Md.
APS
2014
|
DOI: |
10.1103/PhysRevB.89.235118 |
Document Type: |
Journal Article |
Research Program: |
JCNS In-house Research with PNI Neutrons Exploratory materials and phenomena Spin-based and quantum information |
Subject (ZB): | |
Link: |
OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.89.235118 in citations.
We here present inelastic neutron scattering results on the strongly correlated cubic superconductor UBe13(Tc = 0.85 K) obtained on a large single crystal by high-resolution cold neutron three-axis spectroscopy. Weobserved spin dynamics at a unique momentum space position building up below T ∼ 50 K and changingsignificantly on entering the superconducting state. The observed short-range longitudinal character of thecorrelations can be understood as a result of competing magnetic interactions. The energy dependence in thenormal state reflects the energy scales determined from specific heat, whereas the low-temperature data suggestthe opening of a superconducting gap. Our findings are consistent with a superconducting order parameterexhibiting s± or d-wave symmetry and placing pure UBe13 in the strong coupling regime. |