Superconductivity in the topological semimetal YPtBi

By N. Butch, P. Syers, K. Kirshenbaum, A. P. Hope, J. Paglione. 2011

182 citations recorded by the source corpus.

The noncentrosymmetric Half Heusler compound YPtBi exhibits superconductivity below a critical temperature T_c = 0.77 K with a zero-temperature upper critical field H_c2(0) = 1.5 T. Magnetoresistance and Hall measurements support theoretical predictions that this material is a topologically nontrivial semimetal having a surprisingly low positive charge carrier density of 2 x 10^18 cm^-3. Unconventional linear magnetoresistance and beating in Shubnikov-de Haas oscillations point to spin-orbit split Fermi surfaces. The sensitivity of magnetoresistance to surface roughness suggests a possible contribution from surface states. The combination of noncentrosymmetry and strong spin-orbit coupling in YPtBi presents a promising platform for the investigation of topological superconductivity.

Subfields: Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/a2e2eb742380622dfff387e91969eaac718b5200

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. Y. Ando
2. Masatoshi Sato
3. Tanmoy Das
4. Hsin Lin
5. Arun Bansil
6. Ashvin Vishwanath
7. Liang Fu
8. K. Kawabata

In Electronic, Optical and Magnetic Materials

1. Masatoshi Sato
2. Y. Ando

In Materials Chemistry

1. Y. Ando
2. Tanmoy Das
3. Masatoshi Sato
4. Hsin Lin
5. Arun Bansil
6. Liang Fu
7. Ashvin Vishwanath

Citations in the corpus

• Heusler 4.0: Tunable Materials (2016, unknown): “9 K) (85, 86), ErPtBi – antiferromagnetism (TN < 1.”
• Colloquium : Topological band theory (2016, background): “(Butch et al. 2011) IVC.2 Li2AgSb class semiconductors Like the half-Heuslers, M′ and X atoms in the ternary intermetallics (Lin, Das, Wang, et al. 2013) Li2M’X [M’ = Cu, Ag, Au, or Cd; X = Sb, Bi, or Sn] form a zincblende sublattice with a total of 18 valence electrons in closed d10s2p6 shells.”
• Topological superconductors: a review (2016, background): “YPtBi is a relatively new superconductor [227] which is noncentrosymmetric and presents evidence for line nodes [228].”