Topological nodal line semimetals with and without spin-orbital coupling

By Chen Fang, Yige Chen, H. Kee, Liang Fu. 2015

610 citations recorded by the source corpus.

lines in the Brillouin zone. We propose two different classes of symmetry protected nodal lines in the absence and in the presence of spin-orbital coupling (SOC), respectively. In the former, we discuss nodal lines that are protected by a combination of inversion symmetry and time-reversal symmetry, yet, unlike previously studied nodal lines in the same symmetry class, each nodal line has a Z2 monopole charge and can only be created (annihilated) in pairs. In the second class, with SOC, we show that a nonsymmorphic symmetry (screw axis)

Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/ae2efaf52ce89bbfdf5d5ef5276f4f801199d60b

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. Nathan Goldman
2. Ashvin Vishwanath
3. T. Ozawa
4. M. Rechtsman
5. Zhong Wang
6. A. Amo
7. H. Price
8. Ling Lu

In Materials Chemistry

1. Ashvin Vishwanath
2. Nathan Goldman
3. Zhong Wang
4. Shoucheng Zhang
5. Ling Lu
6. N. P. Armitage
7. M. Rechtsman
8. J. Venderbos

Citations in the corpus

• Nodal-knot semimetals (2017, methodology): “In this work, we consider the combination[43, 73] of spatialinversion symmetry P and time-reversal symmetry T , which ensures that H(k) = H(k) up to a basis choice, thus we have a2(k) = 0.”
• Topological photonics (2018, background): “Nodal lines can also carry a Z2 charge (Fang et al., 2015).”
• Nodal-link semimetals (2017, background): “[66] Chen Fang, Yige Chen, Hae-Young Kee, and Liang Fu, “Topological nodal line semimetals with and without spinorbital coupling,” Phys.”
• Experimental discovery of nodal chains (2017, background): “[12] Chen Fang, Yige Chen, Hae-Young Kee, and Liang Fu, “Topological nodal line semimetals with and without spin-orbital coupling,” Physical Review B 92, 081201 (2015).”
• Topological Semimetals from First Principles (2018, background): “The Z2 monopole charge characterizes a two-parameter family of Hamiltonians in 3D momentum space (117, 139, 140).”