Metallic state in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mn /><mml:mo>(</mml:mo><mml:mi mathvariant="normal">TMTSF</mml:mi><mml:mo>)</mml:mo><mml:mn /></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">PF</mml:mi></mml:mrow><mml:mrow><mml:mn>6</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>at low pressure

Lee, I. J.; Naughton, Michael

doi:10.1103/physrevb.58.r13343

Cited by 32 publications

(55 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Note that for half-filling k F = π 2a , and thus γ 0 = 0 and there will be no magic angle effects unless we solve the semi-classical equations to higher order in t b . Figure 1 is qualitatively similar to experimental results for (TMTSF) 2 ClO 4 at ambient pressure [16] and at 6.0 kbar [17] and (TMTSF) 2 PF 6 at 6.0 kbar (0.3 K and 4 T) [18]. A small difference is that the experimental data shows a small dip near 90 0 , whereas the theoretical curve shows no such dip.…”

Section: Magic Anglessupporting

confidence: 77%

“…For (TMTSF) 2 ClO 4 at 6.0 kbar [17] a linear field dependence is observed at high fields. In (TMTSF) 2 PF 6 at pressures from 6 to 10 kbar the resistivity saturates as the field increases [7,18]. However, caution is in order because derivation of the quadratic dependence involved assuming that t c tan θ ≪ t b and so we only expect a quadratic dependence slightly away from 90 0 or in the limit t c → 0.…”

Section: Temperature Dependence Of the Interlayer Magnetoresistanmentioning

confidence: 99%

“…Although these dips are not observed [10], features are seen, mostly at p/q = 1, 2 in the torque [12] and in all components of the resistance [7,[12][13][14][16][17][18]. A wide range of physical mechanisms have been proposed to explain these effects including commensurability effects changing the electron-electron scattering rate [11], semi-classical transport [19], complicated band structures [20,21], hot spots on the Fermi surface [22], cold spots on the Fermi surface [23], electron-electron interactions [24], non-Fermi liquid effects [25], and magnetic field induced changes in effective dimensionality [26].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Temperature dependence of the interlayer magnetoresistance of quasi-one-dimensional Fermi liquids at the magic angles

McKenzie

Moses²

2000

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

The interlayer magnetoresistance of a quasi-one-dimensional Fermi liquid is considered for the case of a magnetic field that is rotated within the plane perpendicular to the most-conducting direction. Within semi-classical transport theory dips in the magnetoresistance occur at integer "magic angles" only when the electronic dispersion parallel to chains is nonlinear. If the field direction is fixed at one of the magic angles and the temperature is varied then the resulting variation of the scattering rate can lead to a non-monotonic variation of the interlayer magnetoresistance with temperature. Although the model considered here gives a good description of some of the properties of the Bechgaard salts, (TMTSF)2PF6 for pressures less than 8 kbar and (TMTSF)2ClO4 it gives a poor description of their properties when the field is parallel to the layers and of the intralayer transport.

show abstract

Section: Magic Anglessupporting

confidence: 77%

Section: Temperature Dependence Of the Interlayer Magnetoresistanmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Temperature dependence of the interlayer magnetoresistance of quasi-one-dimensional Fermi liquids at the magic angles

McKenzie

Moses²

2000

J. Phys.: Condens. Matter

View full text Add to dashboard Cite

show abstract

“…It is important that the DKC and LNL oscillations are well explained within the Fermi-liquid approach to open quasi-one-dimensional (Q1D) pieces of the Fermi surface in the Q1D conductors (TMTSF) 2 X (X = ClO 4 , PF 6 , etc. ), (DMET) 2 I 3 , and some others [4,[6][7][8]. On the other hand, in many cases, the LMA phenomena are experimentally claimed [9-13] to be of a nonFermi-liquid nature.…”

mentioning

confidence: 99%

“…For open orbits, Landau quantization is not possible and another quantum effect-Bragg reflection from boundaries of the Brillouin zone-plays an important role [2][3][4]. In particular, it has been shown [5][6][7][8] that the latter effect results in the appearance of angular magnetic oscillations, such as the so-called Lebed's magic angles (LMAs), Danner-Kang-Chaikin's (DKC) oscillations, and Lee-Naughton-Lebed's (LNL) ones. It is important that the DKC and LNL oscillations are well explained within the Fermi-liquid approach to open quasi-one-dimensional (Q1D) pieces of the Fermi surface in the Q1D conductors (TMTSF) 2 X (X = ClO 4 , PF 6 , etc.…”

mentioning

confidence: 99%

Non-Fermi-liquid magic angle effects in high magnetic fields

Lebed

2016

Phys. Rev. B

View full text Add to dashboard Cite

We investigate a theoretical problem of electron-electron interactions in an inclined magnetic field in a quasi-one-dimensional (Q1D) conductor. We show that they result in strong non-Fermi-liquid corrections to a specific heat, provided that the direction of the magnetic field is far from the so-called Lebed's magic angles (LMAs). If magnetic field is directed close to one of the LMAs, the specific heat corrections become small and the Fermi-liquid picture restores. As a result, we predict Fermi-liquid-non-Fermi-liquid angular crossovers in the vicinities of the LMA directions of the field. We suggest to perform the corresponding experiment in the Q1D conductor (Per) 2 Au(mnt) 2 under pressure in magnetic fields of the order of H 25 T. DOI: 10.1103/PhysRevB.94.035162 It is well known that closed electron orbits in a magnetic field in metals are characterized by de Haas-van Alphen and Shubnikov-de Haas quantum oscillations [1]. For open orbits, Landau quantization is not possible and another quantum effect-Bragg reflection from boundaries of the Brillouin zone-plays an important role [2][3][4]. In particular, it has been shown [5][6][7][8] that the latter effect results in the appearance of angular magnetic oscillations, such as the so-called Lebed's magic angles (LMAs), Danner-Kang-Chaikin's (DKC) oscillations, and Lee-Naughton-Lebed's (LNL) ones. It is important that the DKC and LNL oscillations are well explained within the Fermi-liquid approach to open quasi-one-dimensional (Q1D) pieces of the Fermi surface in the Q1D conductors (TMTSF) 2 X (X = ClO 4 , PF 6 , etc.), (DMET) 2 I 3 , and some others [4,[6][7][8]. On the other hand, in many cases, the LMA phenomena are experimentally claimed [9-13] to be of a nonFermi-liquid nature. This was claimed by Chaikin's group for the Nernst effect in (TMTSF) 2 PF 6 [9,10,12], by Brooks' group for the Nernst effect in (TMTSF) 2 ClO 4 [11], and recently by Uji's group [13] for the Hall effect in (TMTSF) 2 ClO 4 . In our opinion, some non-Fermi-liquid effects were also observed in the LMA resistive experiments in the Q1D compound (Per) 2 Au(mnt) 2 by Graf et al. [14].A non-Fermi-liquid theory of the LMA phenomenon was suggested in Ref. [15]. In particular, we showed [15] that an inverse electron-electron scattering time increased at the LMA directions of a magnetic field due to some commensurability effects in a "one-dimensionalized" electron spectrum in a Q1D conductor, resulting from Bragg reflections. Yakovenko studied the same "commensurability" effects in several thermodynamic properties of a Q1D conductor [16], including specific heat (see also Refs. [17,18]). Note that the physical conclusion of the work [16] was similar to that of Ref. [15], that a Q1D metal became more 1D at the LMA directions of the field. There are two main goals of the current article. The first one is that we consider the case of high magnetic fields and come to the conclusion that, at directions of the magnetic field far from one of the LMAs, the corrections to specific heat from electron...

show abstract

Unusual Magic Angles Effects in Bechgaard Salts

Kang¹

2008

Springer Series in Materials Science

View full text Add to dashboard Cite

Metallic state in(TMTSF)2PF6at low pressure

Cited by 32 publications

References 23 publications

Temperature dependence of the interlayer magnetoresistance of quasi-one-dimensional Fermi liquids at the magic angles

Temperature dependence of the interlayer magnetoresistance of quasi-one-dimensional Fermi liquids at the magic angles

Non-Fermi-liquid magic angle effects in high magnetic fields

Unusual Magic Angles Effects in Bechgaard Salts

Contact Info

Product

Resources

About