Volume 109, Number 6, March 2015
|Number of page(s)||6|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||25 May 2015|
Magnetic impurities make superconductivity in 3D Dirac semi-metal triplet
1 Electrophysics Department, National Chiao Tung University - Hsinchu 30050, Taiwan, R.O.C.
2 Physics Department, Ariel University - Ariel 40700, Territories Administered by Israel
3 Physics Department, Bar-Ilan University - 52900 Ramat-Gan, Israel
4 School of Physics, Peking University - Beijing 100871, China
5 Collaborative Innovation Center of Quantum Matter - Beijing, China
Received: 26 August 2014
Accepted: 19 March 2015
Conventional electron-phonon coupling induces either odd (triplet) or even (singlet) pairing states in a time reversal and inversion invariant Dirac semi-metal. It was shown that the energy of the singlet channel, always lower, prevails over the triplet. The role of both magnetic and non-magnetic spatial disorder was discovered. It is predicted that the magnetic part of scattering establishes a triplet ground state suppressing the singlet phase. On the other hand, the non-magnetic impurities slightly affecting the singlet phase may significantly suppress the triplet state.
PACS: 74.20.Fg – BCS theory and its development / 74.90.+n – Other topics in superconductivity (restricted to new topics in section 74) / 74.20.Rp – Pairing symmetries (other than s-wave)
© EPLA, 2015
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.