Journal Article PUBDB-2024-06133

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Magnetotransport and angle-resolved photoemission spectroscopy of MnSb$_{12}$Te$_{19}$: a new member of MnSb$_{2n}$Te$_{3n+1}$ family

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2024
IOP Publ. Bristol

Journal of physics / Condensed matter 36(50), 50LT01 () [10.1088/1361-648X/ad7806]
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Abstract: The quest for intrinsically ferromagnetic topological materials is a focal point in the study of topological phases of matter, as intrinsic ferromagnetism plays a vital role in realizing exotic properties such as the anomalous Hall effect (AHE) in quasi-two-dimensional materials, and this stands out as one of the most pressing concerns within the field. Here, we investigate a novel higher order member of the Mn$_{2n}$Sb$_{3n+1}$Te family, MnSb$_{12}$Te$_{19}$, for the first time combining magnetotransport and angle-resolved photoemission spectroscopy (ARPES) measurements. Our magnetic susceptibility experiments identify ferromagnetic transitions at temperature Tc = 18.7 K, consistent with our heat capacity measurements (T = 18.8 K). The AHE is observed for the field along the c-axis below Tc. Our study of Shubinikov-de-Haas oscillations provides evidence for Dirac fermions with π Berry phase. Our comprehensive investigation reveals that MnSb$_{12}$Te$_{19}$ exhibits a FM ground state along with AHE, and hole-dominated transport properties consistent with ARPES measurements.

Classification:

Contributing Institute(s):
  1. FS-SXQM (FS-SXQM)
  2. DOOR-User (DOOR ; HAS-User)
Research Program(s):
  1. 632 - Materials – Quantum, Complex and Functional Materials (POF4-632) (POF4-632)
  2. 6G3 - PETRA III (DESY) (POF4-6G3) (POF4-6G3)
  3. 05K19FK4 - Verbundprojekt 05K2019 - QM-MBE-SXPES: Experimentelle Apparatur zur Molekularstrahlepitaxie komplexer Quantenmaterialien für Photoelektronenspektroskopie im Weichröntgenbereich am Strahlrohr P04 von PETRA III. Teilprojekt 1. (BMBF-05K19FK4) (BMBF-05K19FK4)
  4. 05K19WW2 - Verbundprojekt 05K2019 - QM-MBE-SXPES: Experimentelle Apparatur zur Molekularstrahlepitaxie komplexer Quantenmaterialien für Photoelektronenspektroskopie im Weichröntgenbereich am Strahlrohr P04 von PETRA III. Teilprojekt 2. (BMBF-05K19WW2) (BMBF-05K19WW2)
  5. FS-Proposal: I-20221231 (I-20221231) (I-20221231)
  6. INDIA-DESY - INDIA-DESY Collaboration (2020_Join2-INDIA-DESY) (2020_Join2-INDIA-DESY)
Experiment(s):
  1. PETRA Beamline P04 (PETRA III)

Appears in the scientific report 2024
Database coverage:
Medline ; Creative Commons Attribution-NonCommercial-NoDerivs CC BY-NC-ND 4.0 ; Embargoed OpenAccess ; Clarivate Analytics Master Journal List ; Current Contents - Electronics and Telecommunications Collection ; Current Contents - Physical, Chemical and Earth Sciences ; Essential Science Indicators ; IF < 5 ; JCR ; National-Konsortium ; SCOPUS ; Science Citation Index Expanded ; Web of Science Core Collection
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 Record created 2024-10-04, last modified 2025-12-18


Published on 2024-09-13. Available in OpenAccess from 2025-09-13.:
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