Anomalous cyclotron mass dependence on the magnetic field and Berry’s phase in (Cd1−x−yZnxMny)3As2solid solutions

Захвалинский, В. С.; Nikulicheva, T. B.; Lähderanta, E.; Shakhov, M. A.; Nikitovskaya, E A; Taran, Subhrangsu

doi:10.1088/1361-648x/aa8bdb

Cited by 9 publications

(18 citation statements)

References 21 publications

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“…In agreement with [8] rising Mn concentration leads to changes in transport properties of diluted magnetic semiconductor (Cd 1−x−y Zn x Mn y ) 3 As 2 (x+y=0.4). The results of SdH oscillation investigations in y=0.04 samples showed the absence of a phase shift β and evidence of Berry phase.…”

Section: R H T K T E H K T E H K T E Hsupporting

confidence: 72%

“…All the samples had tetragonal crystal structure (s. g. P4 2 /nmc). Well-resolved single-period SdH oscillations were observed well in the all investigated CZMA (х+y=0.4) specimens at temperatures between T=4.2 and 50 K (figure 1, see [8]).…”

Section: Methodsmentioning

confidence: 68%

“…Our results of Fast Fourier Transform (FFT) analysis based on studying Shubnikov-de Haas oscillations indicate the presence of topological properties. For other composition (y=0.08, x=0.32) the magnitude of the phase shift was β= 0.44 being close to β=0.5, which also suggests that single CZMA crystals with y=0.08 demonstrate properties of Dirac semimetals and indicates the presence of Berry phase and 3D Dirac fermions in Cd 3 As 2 single crystals [8,9]. Magnetic field dependences of resistivity have been recently measured at various orientations between a magnetic field vector and electrical current,  The purpose of this investigation was to continue the study of transport properties of solid solutions diluted a magnetic semiconductor (Cd 1−x−y Zn x Mn y ) 3 As 2 (х+y =0.4) containing Mn (y=0.04 and 0.08).…”

Section: Introductionmentioning

confidence: 59%

“…Our further studies of CZMA (x+y=0.4) were prolonged on the basis of the results obtained in [8]. [8].…”

Section: Methodsmentioning

confidence: 99%

“…Earlier we discussed the results of studying Shubnikov-de Haas (SdH) oscillations in (Cd 1−x−y Zn x Mn y ) 3 As 2 (CZMA) compound (х+y =0.4) [8]. SdH effect was investigated in a temperature range T=4.2÷300 K and in a transverse magnetic field B=0÷25 T. The values of the cyclotron mass m c , the effective g-factor g * and Dingle temperature T D were determined.…”

Section: Introductionmentioning

confidence: 99%

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Transport evidence of mass-less Dirac fermions in (Cd_1−x−yZn_xMn_y)₃As₂ (x + y = 0.4)

Захвалинский¹,

Nikulicheva²,

Pilyuk³

et al. 2020

Mater. Res. Express

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Section: R H T K T E H K T E H K T E Hsupporting

confidence: 72%

Section: Methodsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 59%

“…Our further studies of CZMA (x+y=0.4) were prolonged on the basis of the results obtained in [8]. [8].…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Transport evidence of mass-less Dirac fermions in (Cd_1−x−yZn_xMn_y)₃As₂ (x + y = 0.4)

Захвалинский¹,

Nikulicheva²,

Pilyuk³

et al. 2020

Mater. Res. Express

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Asymmetry and Parity Violation in Magnetoresistance of Magnetic Diluted Dirac–Weyl Semimetal (Cd_0.6Zn_0.36Mn_0.04)₃As₂

Ivanov

Захвалинский

Nikulicheva

et al. 2018

Physica Rapid Research Ltrs

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Orientation dependences of magnetoresistance, ρB À Á , of single crystal (Cd 0.6 Zn 0.36 Mn 0.04 ) 3 As 2 having tetragonal P4 2 /nmc symmetry have been studied. Three orientations between electrical current,J, flowing along crystal (100) plane and magnetic field,B, have been used as follows: 1)B is perpendicular to bothJ and (100) plane; 2)B is perpendicular toJ but parallel to (100) plane; 3)B is parallel to bothJ and (100) plane. Asymmetry in curves ρB À Á is observed for all orientations. For orientation (2), crossover from negative to positive magnetoresistance is found as magnetic field changes its direction from one position corresponding to negativeB to opposite direction corresponding to positiveB. So magnetoresistance parity typical for numerous solids is violated for this orientation. The Shubnikov-de Haas (SdH) oscillations are observed for all orientations above %1.8 T and below %40 K. The effective mass of electrons extracted from SdH oscillations analysis is found to be orientation dependent. Smeared kinks correlated with the SdH oscillations are also observed in the Hall effect study for orientation (1). Magnetoresistance peculiarities can be related to specific properties of the Dirac semimetals and their evolution under magnetic field.Magnetoresistance, ρB À Á , characterizing a change of the electrical resistivity, ρ, of solid in applied magnetic field,B, is

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Linear dispersion of Dirac fermions in (Cd_1–x–yZn_xMn_y)₃As₂, х+y = 0.2, у = 0.02, 0.04, 0.06, 0.08 solid solutions

Захвалинский¹,

Nikulicheva²,

Pilyuk³

et al. 2021

Phys. Scr.

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Based on the results of the Shubnikov-de Haas oscillations study in single-crystalline diluted magnetic semiconductors (Cd1−x−yZnxMny)3As2 (CZMA) with х + y = 0.2 and Mn content (у = 0.02, 0.04, 0.06, 0.08) at temperatures T = 4.2 to 30 K and magnetic fields B = 0 to 12 T under hydrostatic pressure p = 0 and 10 kbar, the values of the phase shift β, indicating the existence of the Berry phase in all samples were determined. Thickness of two-dimensional surface topological nanolayers in CZMA (х + y = 0.2) single crystals was defined. The rise in Mn concentration led to an increase in the concentration of charge carriers in the 2D surface layers n 2D and a decrease in its mobility μ 2D. The reduced cyclotron mass m с (0)/m 0, depending on the Fermi wave vector k F , experimentally observed from the Shubnikov-de Haas oscillations, which was in a good agreement with the prediction theory of linear dependence and experimental results in topological insulator single crystals Bi2Se3 indicated that Dirac fermions were present in a diluted magnetic semiconductor CZMA system with х + y = 0.2. The damping of the Shubnikov-de Haas oscillations for pressures p = 0 and 10 kbar in the CZMA sample (х + y = 0.2; y = 0.2) was found to be associated with an amplitude decrease by spin splitting (Zeeman effect). From the analysis of experimental data, the effective Lande factor g = 7.63 and 7.87 and the band gap Δ =35.3 and 9.7 meV at p = 0 and 10 kbar, respectively, were obtained.

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Anomalous cyclotron mass dependence on the magnetic field and Berry’s phase in (Cd_1−x−yZn_xMn_y)₃As₂solid solutions

Cited by 9 publications

References 21 publications

Transport evidence of mass-less Dirac fermions in (Cd_1−x−yZn_xMn_y)₃As₂ (x + y = 0.4)

Transport evidence of mass-less Dirac fermions in (Cd_1−x−yZn_xMn_y)₃As₂ (x + y = 0.4)

Asymmetry and Parity Violation in Magnetoresistance of Magnetic Diluted Dirac–Weyl Semimetal (Cd_0.6Zn_0.36Mn_0.04)₃As₂

Linear dispersion of Dirac fermions in (Cd_1–x–yZn_xMn_y)₃As₂, х+y = 0.2, у = 0.02, 0.04, 0.06, 0.08 solid solutions

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Anomalous cyclotron mass dependence on the magnetic field and Berry’s phase in (Cd1−x−yZnxMny)3As2solid solutions

Cited by 9 publications

References 21 publications

Transport evidence of mass-less Dirac fermions in (Cd1−x−yZnxMny)3As2 (x + y = 0.4)

Transport evidence of mass-less Dirac fermions in (Cd1−x−yZnxMny)3As2 (x + y = 0.4)

Asymmetry and Parity Violation in Magnetoresistance of Magnetic Diluted Dirac–Weyl Semimetal (Cd0.6Zn0.36Mn0.04)3As2

Linear dispersion of Dirac fermions in (Cd1–x–yZnxMny)3As2, х+y = 0.2, у = 0.02, 0.04, 0.06, 0.08 solid solutions

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Anomalous cyclotron mass dependence on the magnetic field and Berry’s phase in (Cd_1−x−yZn_xMn_y)₃As₂solid solutions

Transport evidence of mass-less Dirac fermions in (Cd_1−x−yZn_xMn_y)₃As₂ (x + y = 0.4)

Transport evidence of mass-less Dirac fermions in (Cd_1−x−yZn_xMn_y)₃As₂ (x + y = 0.4)

Asymmetry and Parity Violation in Magnetoresistance of Magnetic Diluted Dirac–Weyl Semimetal (Cd_0.6Zn_0.36Mn_0.04)₃As₂

Linear dispersion of Dirac fermions in (Cd_1–x–yZn_xMn_y)₃As₂, х+y = 0.2, у = 0.02, 0.04, 0.06, 0.08 solid solutions