Magic angles, AMRO and interference effects in layered conductors

A. G. Lebed; N. M. Bagmet; M. J. Naughton

doi:10.1051/jp4:2004114014

Magic angles, AMRO and interference effects in layered conductors

A. G. Lebed, N. M. Bagmet, M. J. Naughton

Research output: Contribution to journal › Conference article › peer-review

6 Scopus citations

Abstract

We analytically solve kinetic equation in the extended Brillouin zone and demonstrate that the interference effects which occur as electrons move along open orbits result in the appearance of Magic Angle (MA) minima of resistivity. A comparison of our theory with MA phenomena observed in resitivity component ρ_⊥ (H, α), perpendicular to conducting layers in (TMTSF)₂X and α -(BEDT-TTF)₂MHg(SCN)₄ conductors, shows a good qualitative agreement, including the first explanation why MA's with large indexes, N > 1, are observed in (TMTSF)₂X (X = ClO₄ and PF₆) and α-(BEDT-TTF)₂MHg(SCN) ₄ compounds. Both physical meaning of the above mentioned interference effects and mathematical expressions for ρ_⊥ (H, α) are different from that in a so-called OsadaÕs model.

Original language	English (US)
Pages (from-to)	77-80
Number of pages	4
Journal	Journal De Physique. IV : JP
Volume	114
DOIs	https://doi.org/10.1051/jp4:2004114014
State	Published - 2004
Externally published	Yes
Event	ISCOM 2003: 5th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets - Port-Bourgenay, France Duration: Sep 21 2003 → Sep 26 2003

Keywords

Magic angles
Organic conductors
Quantum oscillations

ASJC Scopus subject areas

General Physics and Astronomy

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10.1051/jp4:2004114014

Cite this

@article{7a7bf9033a6a4f47919b0d3e6a0cfa1f,

title = "Magic angles, AMRO and interference effects in layered conductors",

abstract = "We analytically solve kinetic equation in the extended Brillouin zone and demonstrate that the interference effects which occur as electrons move along open orbits result in the appearance of Magic Angle (MA) minima of resistivity. A comparison of our theory with MA phenomena observed in resitivity component ρ⊥ (H, α), perpendicular to conducting layers in (TMTSF)2X and α -(BEDT-TTF)2MHg(SCN)4 conductors, shows a good qualitative agreement, including the first explanation why MA's with large indexes, N > 1, are observed in (TMTSF)2X (X = ClO4 and PF6) and α-(BEDT-TTF)2MHg(SCN) 4 compounds. Both physical meaning of the above mentioned interference effects and mathematical expressions for ρ⊥ (H, α) are different from that in a so-called Osada{\~O}s model.",

keywords = "Magic angles, Organic conductors, Quantum oscillations",

author = "Lebed, {A. G.} and Bagmet, {N. M.} and Naughton, {M. J.}",

year = "2004",

doi = "10.1051/jp4:2004114014",

language = "English (US)",

volume = "114",

pages = "77--80",

journal = "Journal De Physique. IV : JP",

issn = "1155-4339",

publisher = "Springer Verlag",

note = "ISCOM 2003: 5th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets ; Conference date: 21-09-2003 Through 26-09-2003",

}

TY - JOUR

T1 - Magic angles, AMRO and interference effects in layered conductors

AU - Lebed, A. G.

AU - Bagmet, N. M.

AU - Naughton, M. J.

PY - 2004

Y1 - 2004

N2 - We analytically solve kinetic equation in the extended Brillouin zone and demonstrate that the interference effects which occur as electrons move along open orbits result in the appearance of Magic Angle (MA) minima of resistivity. A comparison of our theory with MA phenomena observed in resitivity component ρ⊥ (H, α), perpendicular to conducting layers in (TMTSF)2X and α -(BEDT-TTF)2MHg(SCN)4 conductors, shows a good qualitative agreement, including the first explanation why MA's with large indexes, N > 1, are observed in (TMTSF)2X (X = ClO4 and PF6) and α-(BEDT-TTF)2MHg(SCN) 4 compounds. Both physical meaning of the above mentioned interference effects and mathematical expressions for ρ⊥ (H, α) are different from that in a so-called OsadaÕs model.

AB - We analytically solve kinetic equation in the extended Brillouin zone and demonstrate that the interference effects which occur as electrons move along open orbits result in the appearance of Magic Angle (MA) minima of resistivity. A comparison of our theory with MA phenomena observed in resitivity component ρ⊥ (H, α), perpendicular to conducting layers in (TMTSF)2X and α -(BEDT-TTF)2MHg(SCN)4 conductors, shows a good qualitative agreement, including the first explanation why MA's with large indexes, N > 1, are observed in (TMTSF)2X (X = ClO4 and PF6) and α-(BEDT-TTF)2MHg(SCN) 4 compounds. Both physical meaning of the above mentioned interference effects and mathematical expressions for ρ⊥ (H, α) are different from that in a so-called OsadaÕs model.

KW - Magic angles

KW - Organic conductors

KW - Quantum oscillations

UR - http://www.scopus.com/inward/record.url?scp=33645147096&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=33645147096&partnerID=8YFLogxK

U2 - 10.1051/jp4:2004114014

DO - 10.1051/jp4:2004114014

M3 - Conference article

AN - SCOPUS:33645147096

SN - 1155-4339

VL - 114

SP - 77

EP - 80

JO - Journal De Physique. IV : JP

JF - Journal De Physique. IV : JP

T2 - ISCOM 2003: 5th International Symposium on Crystalline Organic Metals, Superconductors and Ferromagnets

Y2 - 21 September 2003 through 26 September 2003

ER -

Magic angles, AMRO and interference effects in layered conductors

Abstract

Keywords

ASJC Scopus subject areas

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