Angular magnetoresistance oscillations and the shape of the Fermi surface in ?(ET)<sub>2</sub>IBr<sub>2</sub>

Kartsovnı̆k, M. V.; Laukhin, V. N.; Pesotskiǐ, S. I.; Schegolev, I.F.; Yakovenko, Victor M.

doi:10.1051/jp1:1992125

Cited by 114 publications

(101 citation statements)

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“…In the semi-classical picture all the AMRO are caused by the degree to which the velocity components of the quasiparticle are averaged over the series of orbits that appear at a certain inclination angle. In particular, the orbits that are possible in the region of the Yamaji angles are very successful in averaging the interlayer velocity towards zero, thus peaks are seen in the interlayer resistance [14,15]. In contrast, the orbits that occur at the Lebed magic angles are not as successful at averaging the interlayer velocity towards zero as those possible at the other angles and so dips in ρ zz are observed [13].…”

Section: Overview Of the Features Observed In Magnetotransportmentioning

confidence: 97%

Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)
Goddard
¹
,
Blundell
²
,
Singleton
³

et al. 2004
Phys. Rev. B
61
8
76
0
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The angle-dependences of the magnetoresistance of two different isotopic substitutions (deuterated and undeuterated) of the layered organic superconductor κ-(ET)2Cu(NCS)2 are presented. The angle dependent magnetoresistance oscillations (AMRO) arising from the quasi-one-dimensional (Q1D) and quasi-two-dimensional (Q2D) Fermi surfaces in this material are often confused. By using the Boltzman transport equation extensive simulations of the AMRO are made that reveal the subtle differences between the different species of oscillation. No significant differences are observed in the electronic parameters derived from quantum oscillations and AMRO for the two isotopic substitutions. The interlayer transfer integrals are determined for both isotopic substitutions and a slight difference is observed which may account for the negative isotope effect previously reported [1]. The success of the semi-classical simulations suggests that non-Fermi liquid effects are not required to explain the interlayer-transport in this system.

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Section: Overview Of the Features Observed In Magnetotransportmentioning

confidence: 97%

Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)
Goddard
¹
,
Blundell
²
,
Singleton
³

et al. 2004
Phys. Rev. B
61
8
76
0
View full text Add to dashboard Cite

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“…This theory predicts several peculiarities of MR in Q2D metals: the angular magnetoresistance oscillations (AMRO) [19][20][21] and the beats of the amplitude of MQO [17]. One can even extract the fine details of the FS, such as its in-plane anisotropy [22] and its harmonic expansion, [23,24] from the angular dependence of MQO frequencies and from AMRO. For isotropic in-plane electron dispersion, AMRO can be described by the renormalization of the interlayer transfer integral: [25] …”

mentioning

confidence: 99%

Slow Oscillations of In-plane Magnetoresistance in Strongly Anisotropic Quasi-Two-Dimensional Rare-Earth Tritellurides

et al. 2016

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Slow oscillations of the in-plane magnetoresistance are observed in the rare-earth tritellurides and proposed as an effective tool to determine the parameters of electronic structure in various strongly anisotropic quasi-two-dimensional compounds. These oscillations do not originate from the small Fermi surface pockets, as revealed usually by the Shubnikov-de-Haas oscillations, but from the entanglement of close frequencies due to a finite interlayer transfer integral tz, which allows to estimate its value. For TbTe3 and GdTe3 we obtain the estimate tz ≈ 1 meV.PACS numbers: 71.45. Lr,72.15.Gd,73.43.Qt,74.70.Kn, The angular and magnetic quantum oscillations (MQO) of magnetoresistance (MR) is a powerful tool to study electronic properties of various quasi-twodimensional (Q2D) layered metallic compounds, such as organic metals (see, e.g., Refs. [1-4] for reviews), cuprate and iron-based high-temperature superconductors (see, e.g., [5][6][7][8][9][10][11][12][13][14]The Fermi surface (FS) of Q2D metals is a cylinder with weak warping ∼ 4t z /E F ≪ 1, where t z is the interlayer transfer integral and E F = µ is the in-plane Fermi energy. The MQO with such FS have two close fundamental frequencies F 0 ± ∆F . In a magnetic field B = B z perpendicular to the conducting layers F 0 /B = µ/ ω c and ∆F/B = 2t z / ω c , where ω c = eB z /m * c is the separation between the Landau levels (LL).The standard 3D theory of galvanomagnetic properties [16][17][18] is valid only at t z ≫ ω c and in the lowest order in the parameter ω c /t z . This theory predicts several peculiarities of MR in Q2D metals: the angular magnetoresistance oscillations (AMRO) [19][20][21] and the beats of the amplitude of MQO [17]. One can even extract the fine details of the FS, such as its in-plane anisotropy [22] and its harmonic expansion, [23,24] from the angular dependence of MQO frequencies and from AMRO. For isotropic in-plane electron dispersion, AMRO can be described by the renormalization of the interlayer transfer integral: [25] where J 0 (x) is the Bessel's function, p F = k F is the in-plane Fermi momentum, and θ is the angle between magnetic field B and the normal to the conducting layers. At t z ∼ ω c new qualitative features appear both in the monotonic and oscillating parts of MR. For example, the strong monotonic growth of interlayer MR R zz (B z ) was observed in various Q2D metals [26][27][28][29][30][31][32][33][34][35] and recently theoretically explained [35][36][37][38]. The oscillating part of interlayer MR at µ ≫ t z ω c acquires the slow oscillations [34,39] and the phase shift of beats. [39,40] These two effects are missed by the standard 3D theory [16][17][18] because they appear in the higher orders in ω c /t z .The slow oscillations qualitatively originate from the product of the oscillations with two close frequencies F 0 ± ∆F , which gives the oscillations with frequency 2∆F . Conductivity, being a non-linear function of the oscillating electronic density of states (DoS) and of the diffusion coefficient, has slow oscillat...

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“…This expression has been used to map out the intralayer FS for a wide range of metallic organic charge transfer salts. 7,24 We point out that our expression ͑10͒ will also be sensitive to angular variations in the interlayer hopping and cyclotron frequency. Interestingly, when 00 0 ӷ 1, there is no 0 dependence from the angular variation in the scattering rate since the only dependence on the scattering rate is through the quantity P, which involves an average over the FS.…”

Section: Mapping Out Fermi Surface Anisotropies At High Magnetic Fmentioning

confidence: 98%

“…7,8,24 When ck F tan ӷ 1 and cv F 0 eB / ប 2 ӷ 1, the method of steepest descents may be used to evaluate the integrals in Eq. ͑9͒.…”

Section: Mapping Out Fermi Surface Anisotropies At High Magnetic Fmentioning

confidence: 99%

Sensitivity of the interlayer magnetoresistance of layered metals to intralayer anisotropies

Kennett

McKenzie

2007

Phys. Rev. B

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Many of the most interesting and technologically important electronic materials discovered in the past two decades have both a layered crystal structure and strong interactions between electrons. Two fundamental questions about such layered metals concern the origin of intralayer anisotropies and the coherence of interlayer charge transport. We show that angle dependent magnetoresistance oscillations ͑AMROs͒ are sensitive to anisotropies around an intralayer Fermi surface and can hence be a complementary probe of such anisotropies to angle-resolved photoemission spectroscopy and scanning tunneling microscopy. However, AMROs are not very sensitive to the coherence of the interlayer transport which has implications for recent AMRO experiments on an overdoped cuprate.

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Angular magnetoresistance oscillations and the shape of the Fermi surface in ?(ET)₂IBr₂

Cited by 114 publications

References 0 publications

Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)
Goddard
¹
,
Blundell
²
,
Singleton
³

et al. 2004
Phys. Rev. B
61
8
76
0
View full text Add to dashboard Cite

Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)
Goddard
¹
,
Blundell
²
,
Singleton
³

et al. 2004
Phys. Rev. B
61
8
76
0
View full text Add to dashboard Cite

Slow Oscillations of In-plane Magnetoresistance in Strongly Anisotropic Quasi-Two-Dimensional Rare-Earth Tritellurides

Sensitivity of the interlayer magnetoresistance of layered metals to intralayer anisotropies

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Angular magnetoresistance oscillations and the shape of the Fermi surface in ?(ET)2IBr2

Cited by 114 publications

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Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)Goddard1, Blundell2, Singleton3 et al. 2004Phys. Rev. B618760View full textAdd to dashboardCite

Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)Goddard1, Blundell2, Singleton3 et al. 2004Phys. Rev. B618760View full textAdd to dashboardCite

Slow Oscillations of In-plane Magnetoresistance in Strongly Anisotropic Quasi-Two-Dimensional Rare-Earth Tritellurides

Sensitivity of the interlayer magnetoresistance of layered metals to intralayer anisotropies

Contact Info

Product

Resources

About

Angular magnetoresistance oscillations and the shape of the Fermi surface in ?(ET)₂IBr₂

Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)
Goddard
¹
,
Blundell
²
,
Singleton
³

et al. 2004
Phys. Rev. B
61
8
76
0
View full text Add to dashboard Cite

Angle-dependent magnetoresistance of the layered organic superconductorκ−(ET)2Cu(NCS)
Goddard
¹
,
Blundell
²
,
Singleton
³

et al. 2004
Phys. Rev. B
61
8
76
0
View full text Add to dashboard Cite