MAGNETIC ORDERING AND TOPOLOGY IN Mn2Bi2Te5 AND Mn2Sb2Te5 VAN DER WAALS MATERIALS

Eremeev, S. V.; Otrokov, M. M.; Ernst, A.; Chulkov, E. V.

doi:10.25205/978-5-4437-1353-3-320

Cited by 4 publications

(9 citation statements)

References 66 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, previous research found that the small magnetic coupling in MBT can modulate the magnetic configurations by the external field [12,13,20]. Similarly, M 2 BT can also undergo the same process [4]. For the M 3 BT, the coupling strength on the Mn pair of the FI-AFM configuration is 11.7 meV lower than that of FM.…”

Section: Magnetic Properties Of M 3 Btmentioning

confidence: 88%

“…For AFM M 2 BT, the system is a dynamic axion insulator, which still has topological properties [3]. Once these two materials enter the FM state, they behave the Weyl semi-metals [4,12]. While for M 3 BT in the magnetic ground state, we calculated the Wannier charge center (WCC) (figure A4), which can be employed to determine the topology of the FI-AFM M 3 BT.…”

Section: Topological Properties In M 3 Btmentioning

confidence: 99%

“…It exhibits intrinsic AFM axion insulator properties, displaying TME and chiral magnetic effect [1,3,4,19]. Theoretical studies have suggested that M 2 BT can easily transition from a topologically-trivial AFM phase to a topological Weyl semimetal phase when an external field is applied, due to its small exchange energy [4]. However, the experimental measurements of the magnetization of M 2 BT indicate a T N of only 24 K, which is almost the same as that of MBT.…”

Section: Introductionmentioning

confidence: 98%

“…The sister compound of MBT, Mn 2 Bi 2 Te 5 (M 2 BT), has also been synthesized experimentally. It exhibits intrinsic AFM axion insulator properties, displaying TME and chiral magnetic effect [1,3,4,19]. Theoretical studies have suggested that M 2 BT can easily transition from a topologically-trivial AFM phase to a topological Weyl semimetal phase when an external field is applied, due to its small exchange energy [4].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

High-temperature magnetically topological candidate material Mn₃Bi₂Te₆

Wu,

Huang,

Wang

et al. 2023

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

The Mn–Bi–Te family displaying magnetism and non-trivial topological properties has received extensive attention. Here, we predict that the antiferromagnetic structure of Mn3Bi2Te6 with three MnTe layers is energetically stable and the magnetic energy difference of Mn–Mn is enhanced four times compared with that in the single MnTe layer of MnBi2Te4. The predicted Néel transition point is raised to 102.5 K, surpassing the temperature of liquid nitrogen. The topological properties show that with the variation of the MnTe layer from a single layer to three layers, the system transforms from a non-trivial topological phase to a trivial topological phase. Interestingly, the ferromagnetic state of Mn3Bi2Te6 is a topological semimetal and it exhibits a topological transition from trivial to non-trivial induced by the magnetic transition. Our results enrich the Mn–Bi–Te family system, offer a new platform for studying topological phase transitions, and pave a new way to improve the working temperature of magnetically topological devices.

show abstract

Section: Magnetic Properties Of M 3 Btmentioning

confidence: 88%

Section: Topological Properties In M 3 Btmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High-temperature magnetically topological candidate material Mn₃Bi₂Te₆

Wu,

Huang,

Wang

et al. 2023

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…When tuned to the ferromagnetic state with a small external magnetic field, it is an axion insulator regardless of the magnetization direction. , A ferromagnetic ground state is expected under strain or charge doping . In Mn 2 (Bi, Sb) 2 Te 5 compounds, an antiferromagnetic topological insulator state and a ferromagnetic axion insulator or Weyl semimetal state are predicted. − The MnBi 2 Se 4 was discovered to be a high-temperature topological insulator both theoretically and experimentally. , In view of these emerging exotic phenomenons, it is obvious that more magnetic topological materials with similar structures are desired for the study of topological physics and spintronic applications.…”

mentioning

confidence: 99%

Multiple Magnetic Topological Phases in the van der Waals Crystal Mn(Bi,Sb)₄Se₇

Lin

Chen

Cao

et al. 2023

J. Phys. Chem. Lett.

View full text Add to dashboard Cite

Exploration of intrinsic magnetic topological insulators in multiple-MnTe-intercalated topological insulator Bi2Te3

Yang,

Zhang,

Wang

et al. 2024

Applied Physics Letters

View full text Add to dashboard Cite

The fabrication of MnBi2Te4 family of materials has been demonstrated that intercalating magnetic MnTe layer into topological insulator Bi2Te3 is an efficient way to explore magnetic topological insulator. A natural question is that if multiple MnTe layers can be intercalated into Bi2Te3, meanwhile if the topological properties are well preserved. Based on first-principles calculations, we first confirm that multiple MnTe layers can be inserted into Bi2Te3 by forming antiferromagnetic MnnBi2Te3+n (n = 1–5) crystals, where each system is energetically stable and can be readily exfoliated down to a monolayer. Specifically, the structural phase transition from ABC to ABAC stacking happens when n ≥ 2. Further electronic band structure calculations and topological identification reveal that the magnetic MnnBi2Te3+n undergoes a topologically nontrivial to trivial phase transition when n > 2, which is attributed to that multiple MnTe layers destroy the topological property of Bi2Te3. In addition to applying compressed strain, the topological states can be restored by intercalating Bi2Te3 layers by forming (MnTe)n(Bi2Te3)m heterostructures. Most strikingly, it is found that the topological properties of (MnTe)n(Bi2Te3)m are universally determined by the ratio of n/m, once n/m ≤ 2.8, the desired topological states are recovered. Our notable findings enrich the family of magnetic topological insulator, providing opportunities to explore more intriguing topological phenomena.

show abstract

MAGNETIC ORDERING AND TOPOLOGY IN Mn2Bi2Te5 AND Mn2Sb2Te5 VAN DER WAALS MATERIALS

Cited by 4 publications

References 66 publications

High-temperature magnetically topological candidate material Mn₃Bi₂Te₆

High-temperature magnetically topological candidate material Mn₃Bi₂Te₆

Multiple Magnetic Topological Phases in the van der Waals Crystal Mn(Bi,Sb)₄Se₇

Exploration of intrinsic magnetic topological insulators in multiple-MnTe-intercalated topological insulator Bi2Te3

Contact Info

Product

Resources

About

MAGNETIC ORDERING AND TOPOLOGY IN Mn2Bi2Te5 AND Mn2Sb2Te5 VAN DER WAALS MATERIALS

Cited by 4 publications

References 66 publications

High-temperature magnetically topological candidate material Mn3Bi2Te6

High-temperature magnetically topological candidate material Mn3Bi2Te6

Multiple Magnetic Topological Phases in the van der Waals Crystal Mn(Bi,Sb)4Se7

Exploration of intrinsic magnetic topological insulators in multiple-MnTe-intercalated topological insulator Bi2Te3

Contact Info

Product

Resources

About

High-temperature magnetically topological candidate material Mn₃Bi₂Te₆

High-temperature magnetically topological candidate material Mn₃Bi₂Te₆

Multiple Magnetic Topological Phases in the van der Waals Crystal Mn(Bi,Sb)₄Se₇