Quasi-linear magnetoresistance and paramagnetic singularity in hypervalent bismuthide - Details

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Materials　featuring　hypervalent　bismuth　motifs　have　generated　immense　interest　due　to　their　extraordinary　electronic　structure　and　exotic　quantum　transport.　In　this　study,　we　synthesized　high-quality　single　crystals　of　La3ScBi5　characterized　by　one-dimensional　hypervalent　bismuth　chains　and　performed　a　systematic　investigation　of　the　magnetoresistive　behavior　and　quantum　oscillations.　The　metallic　La3ScBi5　exhibits　a　low-temperature　plateau　of　electrical　resistivity　and　quasi-linear　positive　magnetoresistance,　with　anisotropic　magnetoresistive　behaviors　suggesting　the　presence　of　anisotropic　Fermi　surfaces.　This　distinctive　transport　phenomenon　is　perfectly　elucidated　by　first-principles　calculations　utilizing　the　semiclassical　Boltzmann　transport　theory.　Furthermore,　the　nonlinear　Hall　resistivity　pointed　towards　a　multiband　electronic　structure,　characterized　by　the　coexistence　of　electron　and　hole　carriers,　which　is　further　supported　by　our　first-principles　calculations.　Angle-dependent　de　Haas-van　Alphen　oscillations　are　crucial　for　further　elucidating　its　Fermiology　and　topological　characteristics.　Intriguingly,　magnetization　measurements　unveiled　a　notable　paramagnetic　singularity　at　low　fields,　which　might　suggest　the　nontrivial　nature　of　the　surface　states.　Our　findings　underscore　the　interplay　between　transport　phenomena　and　the　unique　electronic　structure　of　hypervalent　bismuthide　La3ScBi5,　opening　avenues　for　exploring　novel　electronic　applications.　©　The　Author(s)　2025.

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[ 1 ] [Xu Z.]Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, China
[ 2 ] [Xu Z.]Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
[ 3 ] [Xu Z.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 4 ] [Yan Y.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 5 ] [Yan Y.]School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China
[ 6 ] [Liu Z.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 7 ] [Liu Z.]School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China
[ 8 ] [Pang J.]Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
[ 9 ] [Pang J.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 10 ] [Dong G.]Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
[ 11 ] [Dong G.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 12 ] [Deng X.]Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
[ 13 ] [Deng X.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 14 ] [Zhang S.]Beijing Polytechnic College, Beijing, China
[ 15 ] [Zhang X.]Key Laboratory for Anisotropy and Texture of Materials (Ministry of Education), School of Material Science and Engineering, Northeastern University, Shenyang, China
[ 16 ] [Shi Y.]Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, China
[ 17 ] [Shi Y.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 18 ] [Shi Y.]Songshan Lake Materials Laboratory, Dongguan, Guangdong, China
[ 19 ] [Wu Q.]Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences, Beijing, China
[ 20 ] [Wu Q.]School of Physical Sciences, University of Chinese Academy of Sciences, Beijing, China
[ 21 ] [Wu Q.]Songshan Lake Materials Laboratory, Dongguan, Guangdong, China

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npj Quantum Materials

ISSN： 2397-4648

Year： 2025

Issue： 1

Volume： 10

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ESI Highly Cited Papers on the List： 0 Unfold All

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30 Days PV： 0

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