Dynamical properties of the magnetic topological insulator 
<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>T</mml:mi><mml:msub><mml:mi>Bi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Te</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:mrow><mml:mo> </mml:mo><mml:mo>(</mml:mo><mml:mi>T</mml:mi><mml:mo>=</mml:mo><mml:mi>Mn</mml:mi><mml:mo>,</mml:mo><mml:mi>Fe</mml:mi><mml:mo>)</mml:mo></mml:math>
: Phonons dispersion, Raman active modes, and chiral phonons study

Kobiałka, Aksel; Sternik, M.; Ptok, Andrzej

doi:10.1103/physrevb.105.214304

Cited by 11 publications

(15 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For MnBi 2 Te 4 (n = 0) that was studied thoroughly [1,30,[36][37][38][39][40][41] and consists only of SLs, symmetry notations of vibration modes in Fig. 4 coincide with those of recent work [38] where these symmetries were confirmed by the measurements of the polarization of the modes.…”

Section: B Raman-active Modes Of Mnbi 2 Te 4 • N(bi 2 Te 3 )supporting

confidence: 71%

“…In Fig. 5 the open circle indicates the reported value [38,40,41] of the frequency of E 1 g mode of MnBi 2 Te 4 (n = 0). This mode corresponds to the in-plane in-phase displacements of Bi and Te in SLs.…”

Section: Lattice Dynamics Of Mnbi 2 Te 4 • N(bi 2 Te 3 ) and Bi 2 Tementioning

confidence: 99%

“…Although existence of the members with n up to 6 has been reported [2], in fact only the members with n = 0, 1, 2, and 3 have been studied in detail using various experimental and theoretical techniques [1,2,. In particular, available structure refinement and Raman-scattering studies [1,[26][27][28][29][30][31][32][33][34][35][36][37][38][39][40][41][42][43] have been performed for systems with n less than 4, proba-Prior to the growth of the title compounds, the binaries MnTe and Bi 2 Te 3 as precursors were synthesized from highpurity (99.999 wt. %) elemental manganese, bismuth, and tellurium purchased from Alfa Aesar.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Crystal structure and Raman-active lattice vibrations of magnetic topological insulators MnBi2Te4·n(Bi2Te3)

Amiraslanov

Aliev²,

A.³

et al. 2022

Phys. Rev. B

View full text Add to dashboard Cite

bly because of the obvious difficulties in the preparation of MnBi 2 Te 4 • n(Bi 2 Te 3 ) with high index n and unavailability of samples.We have succeeded in this regard and present here the crystal structure of the members with n = 4, 5, and 6, summarize all available structural data for MnBi 2 Te 4 • n(Bi 2 Te 3 ), trace the evolution of Raman spectra of MnBi 2 Te 4 • n(Bi 2 Te 3 ) that embraces all n from 0 to 6 as well as n = ∞ (Bi 2 Te 3 ), and provide a thorough analysis of the obtained Raman data. II. SYNTHESIS AND CRYSTAL STRUCTUREOF MnBi 2 Te 4 • n(Bi 2 Te 3 )A. Synthesis and crystal growth

show abstract

Section: B Raman-active Modes Of Mnbi 2 Te 4 • N(bi 2 Te 3 )supporting

confidence: 71%

Section: Lattice Dynamics Of Mnbi 2 Te 4 • N(bi 2 Te 3 ) and Bi 2 Tementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Crystal structure and Raman-active lattice vibrations of magnetic topological insulators MnBi2Te4·n(Bi2Te3)

Amiraslanov

Aliev²,

A.³

et al. 2022

Phys. Rev. B

View full text Add to dashboard Cite

show abstract

“…From this, the A 2u and E u modes are infrared (IR) active, while A 1g and E g are Raman active. Selective rules for this Raman active modes were described in earlier studies of T Bi 2 Te 4 (T =Mn,Fe) [71]. From this, the Raman modes A 1g and E g can be easily distinguished during the Raman scattering measurements (with linear or circular polarized light), because of the different intensity.…”

Section: Dynamical Stabilitymentioning

confidence: 68%

“…However, due to the presence of inversion symmetry, the total angular momentum is equal to zero [83]. Similarly to CoSn-like compounds [84] or layered magnetic topological insulator T Bi 2 Te 4 (T =Mn,Fe) [71]. Nevertheless, the translational symmetry breaking by the doping can lead to the emergence of states with non-zero total angular momentum [85][86][87].…”

Section: F Chiral Phononsmentioning

confidence: 99%

$T_{3}$Pb$_{2}Ch_{2}$ ($T$=Pd,Pt and $Ch$=S,Se) with transition metal kagome net: Dynamical properties, phonon nodal line, phonon surface states, and chiral phonons

Basak¹,

Kobiałka²,

Ptok³

2023

Preprint

View full text Add to dashboard Cite

Shandite with Ni3Pb2S2 chemical formula and R 3m symmetry, contains the kagome sublattice formed by the transition metal atoms. Recent experimental results confirmed the possibility of successfully synthesizing Pd3Pb2Ch2 (Ch=S,Se) with the same structure. In this paper, we theoretically investigate the dynamical properties of such compounds. Furthermore, we study the possibility of realizing Pt3Pb2Ch2 with the shandite structure. We show that the Pd3Pb2Ch2 and Pt3Pb2S2 are stable with R 3m symmetry. In the case of Pt3Pb2S2, there is a soft mode, which is the source of the structural phase transition from R 3m to R 3c symmetry, related to the distortion within the kagome sublattice. We discuss realized phonon nodal lines in the bulk phonon dispersions in upper frequency modes. We show that the shandite structure can host the phonon surface states, with strong dependence by the surface kind. Additionally, chiral phonons with circular motion of the Pb atoms around the equilibrium position are realized.

show abstract

Dynamical Properties of T₃Pb₂Ch₂ (T=Pd,Pt and Ch=S,Se) with Transition Metal Kagome Net

Basak

Kobiałka

Ptok

2023

Advanced Physics Research

View full text Add to dashboard Cite

Shandite with Ni3Pb2S2 chemical formula and Rm symmetry contains the kagome sublattice formed by transition metal atoms. Recent experimental results confirmed the possibility of successfully synthesizing Pd3Pb2Ch2 (Ch=S,Se) with the same structure. This paper theoretically investigates the dynamical properties of such compounds. Furthermore, we study the possibility of realizing Pt3Pb2Ch2 with the shandite structure. This study shows that the Pd3Pb2Ch2 and Pt3Pb2S2 are stable with Rm symmetry. In the case of Pt3Pb2S2, there is a soft mode, which is the source of the structural phase transition from Rm to Rc symmetry, related to the distortion within the kagome sublattice. This study discusses realized phonon nodal lines in bulk phonon dispersions in upper frequency modes. It shows that the shandite structure can host phonon surface states, with a strong dependence on the type of surface. Additionally, chiral phonons with circular motion of the Pb atoms around the equilibrium position are realized.

show abstract

Dynamical properties of the magnetic topological insulator TBi2Te4 (T=Mn,Fe) : Phonons dispersion, Raman active modes, and chiral phonons study

Cited by 11 publications

References 59 publications

Crystal structure and Raman-active lattice vibrations of magnetic topological insulators MnBi2Te4·n(Bi2Te3)

Crystal structure and Raman-active lattice vibrations of magnetic topological insulators MnBi2Te4·n(Bi2Te3)

$T_{3}$Pb$_{2}Ch_{2}$ ($T$=Pd,Pt and $Ch$=S,Se) with transition metal kagome net: Dynamical properties, phonon nodal line, phonon surface states, and chiral phonons

Dynamical Properties of T₃Pb₂Ch₂ (T=Pd,Pt and Ch=S,Se) with Transition Metal Kagome Net

Contact Info

Product

Resources

About

Dynamical properties of the magnetic topological insulator TBi2Te4 (T=Mn,Fe) : Phonons dispersion, Raman active modes, and chiral phonons study

Cited by 11 publications

References 59 publications

Crystal structure and Raman-active lattice vibrations of magnetic topological insulators MnBi2Te4·n(Bi2Te3)

Crystal structure and Raman-active lattice vibrations of magnetic topological insulators MnBi2Te4·n(Bi2Te3)

$T_{3}$Pb$_{2}Ch_{2}$ ($T$=Pd,Pt and $Ch$=S,Se) with transition metal kagome net: Dynamical properties, phonon nodal line, phonon surface states, and chiral phonons

Dynamical Properties of T3Pb2Ch2 (T=Pd,Pt and Ch=S,Se) with Transition Metal Kagome Net

Contact Info

Product

Resources

About

Dynamical Properties of T₃Pb₂Ch₂ (T=Pd,Pt and Ch=S,Se) with Transition Metal Kagome Net