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Sepper, Otar; Lebed, A. G.

doi:10.1103/physrevb.90.094509

Cited by 7 publications

(4 citation statements)

References 25 publications

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“…Noticeably, χ s is just slightly larger than the high temperature value of χ dc . This is due to the cancellation of the orbital susceptibility χ orb with the diamagnetic susceptibility χ dia , both of which are ∼ (5)(6) times larger than the high temperature value of χ dc . Now, with the value of ( ) χ 0 s we can find the density of state (DOS) ( ) D E F at the Fermi energy (E F ) level [41,39],…”

Section: Vb Pauli Spin Susceptibility (χ S ) Of the Mo Electronsmentioning

confidence: 97%

“…(3D) most recently [6,11]. Thus it involves an electron dimensional crossover [14,15] and may involve spin triplet Cooper pairs as most recently suggested theoretically [6,16], with a non-conventional spin triplet ( p-wave) superconducting state as one of its potential electron ground states. Li 0.9 Mo 6 O 17 has also been a subject of intensive experimental studies over the last three decades [4,5].…”

Section: Introductionmentioning

confidence: 95%

“…The quasi-one-dimensional (Q1D) paramagnetic conductor, Li 0.9 Mo 6 O 17 , has been of particular interest because of its unusual properties. It is thought to exhibit transport properties associated with a Luttinger liquid [1][2][3] at high temperatures, and otherwise many of its properties have long been mysterious [4][5][6][7][8][9]. Among these is an unusual increase (an upturn) in resistivity [4,10,11], which shows a metal-'insulator' crossover, appearing at temperature = T 24 MI K when the applied magnetic field B 0 = 0, and it shifts somewhat [21,22] depending on the direction of B 0 when ≠ B 0 0 .…”

Section: Introductionmentioning

confidence: 99%

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Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li_0.9Mo₆O₁₇

Zeng

et al. 2015

J. Phys.: Condens. Matter

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We report magnetic dipole field investigation at the atomic scale in a single crystal of quasi-onedimensional (Q1D) paramagnetic conductor Li0.9Mo6O17, using a paramagnetic electron model and 7 Li-NMR spectroscopy measurements with an externally applied magnetic field B0 = 9 T. We find that the magnetic dipole field component (B dip || ) parallel to B0 at the Li site from the Mo electrons has no lattice axial symmetry; it is small around the middle between the lattice c and a axes in the ac-plane with the minimum at the field orientation angle θ = +52.5• , while the B dip || maximum is at θ = +142.5• when B0 is applied perpendicular to b (B0 ⊥ b), where θ = 0• represents the direction of B0 c. Further estimate indicates that B dip || has a maximum value of 0.35 G at B0 = 9 T, and the Mo ions have a possible effective magnetic dipole moment 0.015 µB per ion, which is significantly smaller than that of a spin 1/2 free electron. By minimizing potential magnetic contributions to the NMR spectra satellites with the NMR spectroscopy measurements at the direction where the value of the magnetic dipole field is the smallest, the behavior of the independent charge contributions is observed. This work demonstrates that the magnetic dipole field from the Mo electrons is the dominant source of the local magnetic fields at the Li site, and it suggests that the mysterious "metalinsulator" crossover at low temperatures is not a charge effect. The work also reveals valuable local field information for further NMR investigation which is suggested recently [Phys. Rev. B 85, 235128 (2012)] to be key important to the understanding of many mysterious properties of this Q1D material of particular interest.

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Section: Vb Pauli Spin Susceptibility (χ S ) Of the Mo Electronsmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li_0.9Mo₆O₁₇

Zeng

et al. 2015

J. Phys.: Condens. Matter

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“…[62] Nevertheless, a large H c2 (0) beyond the Pauli limit is seen in Q1D Li 0.9 Mo 6 O 17 , [63] which is regarded as evidence of spin-triplet superconductivity. [64] …”

Section: Measurement Ofmentioning

confidence: 99%

Superconductivity with peculiar upper critical fields in quasi-one-dimensional Cr-based pnictides

Cao

Zhu

2018

Chinese Phys. B

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The discovery of superconductivity in quasi-one-dimensional Cr-based pnictides A 2 Cr 3 As 3 (A = alkali metals) has generated considerable research interest, primarily owing to their reduced dimensionality, significant electron correlations, and possible unconventional superconductivity. The upper critical field (H c2 ) provides important information on the superconducting pairing. In this paper, we first briefly overview the latest research progress on the Cr-based superconductors. Then, we introduce typical H c2 (T ) behaviors of type-II superconductors in relation with the pair-breaking mechanisms. After a description of the measurement method for H c2 , we focus on the analysis of H c2 data, especially for the temperature and angle dependence, in K 2 Cr 3 As 3 crystals. The result indicates (i) an absence of Pauli-paramagnetic pair breaking for field perpendicular to the Cr 3 As 3 chains, and (ii) a unique threefold modulation for the in-plane H c2 (φ ) profile. Finally we conclude with remarks on the possible unconventional superconducting pairing symmetry.

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Synthesis and physical properties of the theoretically predicted spin-triplet superconductor Li0.9Mo6O17

Dong

Zhu

et al. 2021

Ceramics International

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Possible restoration of superconductivity in the quasi-one-dimensional conductorLi0.9Mo6O17in pulsed high magnetic fieldsH≃

Cited by 7 publications

References 25 publications

Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li_0.9Mo₆O₁₇

Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li_0.9Mo₆O₁₇

Superconductivity with peculiar upper critical fields in quasi-one-dimensional Cr-based pnictides

Synthesis and physical properties of the theoretically predicted spin-triplet superconductor Li0.9Mo6O17

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Possible restoration of superconductivity in the quasi-one-dimensional conductorLi0.9Mo6O17in pulsed high magnetic fieldsH≃

Cited by 7 publications

References 25 publications

Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li0.9Mo6O17

Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li0.9Mo6O17

Superconductivity with peculiar upper critical fields in quasi-one-dimensional Cr-based pnictides

Synthesis and physical properties of the theoretically predicted spin-triplet superconductor Li0.9Mo6O17

Contact Info

Product

Resources

About

Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li_0.9Mo₆O₁₇

Investigation of the magnetic dipole field at the atomic scale in quasi-one-dimensional paramagnetic conductor Li_0.9Mo₆O₁₇