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Title: Coexistence of antiferromagnetism and topological superconductivity on the honeycomb lattice Hubbard model

Journal Article · · Physical Review. B
ORCiD logo [1];  [1];  [2]; ORCiD logo [3]
  1. Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
  2. Univ. of Michigan, Ann Arbor, MI (United States)
  3. Chinese Univ. of Hong Kong, Shatin (Hong Kong)

In this report, motivated by the recent numerical simulations for doped t-J model on the honeycomb lattice, we study superconductivity of singlet and triplet pairing on the honeycomb lattice Hubbard model. We show that a superconducting state with coexisting spin-singlet and spin-triplet pairings is induced by the antiferromagnetic order near half filling. The superconducting state we obtain has a topological phase transition that separates a topologically trivial state and a nontrivial state with Chern number two. Possible experimental realization of such a topological superconductivity is also discussed.

Research Organization:
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States); Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; Chinese University of Hong Kong; Hong Kong Research Grants Council
Grant/Contract Number:
SC0010526; 4053224; 4053409; 2191110; 24301516
OSTI ID:
1851393
Journal Information:
Physical Review. B, Vol. 102, Issue 24; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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