Magnetic-field effects in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">NbSe</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Shi, Jianhui; Chepin, James; Ross, Joseph H.

doi:10.1103/physrevlett.69.2106

Cited by 12 publications

(3 citation statements)

References 26 publications

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“…The measurements were taken using a 9-T home-built pulse NMR spectrometer described elsewhere 12 line shapes were obtained from spin echo fast Fourier transforms using a composite-pulse sequence. Wide-line satellite spectra were mapped out by spin echo integration.…”

Section: Methodsmentioning

confidence: 99%

NMR study of trialuminide intermetallics

Lue

Chepin²,

Chepin³

et al. 1998

Phys. Rev. B

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We present a systematic study of the DO 22 -structure trialuminide intermetallic alloys using 27 Al NMR spectroscopy. The quadrupole splittings, Knight shifts, and spin-lattice relaxation times on Al 3 Ti, Al 3 V, Al 3 Nb, and Al 3 Ta have been identified. Knight-shift tensors were isolated by observation of quadrupole satellite lines and fitting to the central-transition powder patterns. The results are associated with the local electronic density of states for each crystallographic site. Universally small isotropic Knight shifts and long T 1 's are consistent with low Fermi-surface densities of states indicating the importance of Fermi-surface features for the phase stability of these alloys. Larger anisotropic Knight shifts occurring at aluminum site I indicate strong hybridization at this site, and the electric-field-gradient tensors confirm the strong ab plane bonding configuration. Local-moment magnetism is found in Al 3 V, yet electrically this material appears very similar to the other DO 22 aluminides. ͓S0163-1829͑98͒07112-4͔

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Section: Methodsmentioning

confidence: 99%

NMR study of trialuminide intermetallics

Lue

Chepin²,

Chepin³

et al. 1998

Phys. Rev. B

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“…18(a) reveals a new ordered state below T P 1 . The most obvious reason for this is a lattice distortion coupled with CDW formation, as observed in NbSe 3 [50].…”

Section: The Ultra High-tp Cdw: Indications Of a Peierls Transitmentioning

confidence: 99%

NbS3: A unique quasi-one-dimensional conductor with three charge density wave transitions

et al. 2017

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Through transport, compositional and structural studies, we review the features of the chargedensity wave (CDW) conductor of NbS3 (phase II). We highlight three central results: 1) In addition to the previously reported CDW transitions at TP 1 = 360 K and TP 2 = 150 K, another CDW transition occurs at a much higher temperature TP 0 = 620-650 K; evidence for the non-linear conductivity of this CDW is presented. 2) We show that CDW associated with the TP 2 -transition arises from S vacancies acting as donors. Such a CDW transition has not been observed before. 3) We show exceptional coherence of the TP 1-CDW at room-temperature. Additionally, we report on the effects of uniaxial strain on the CDW transition temperatures and transport.

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“…This was confirmed by Y.T. Tseng et al 21 who observed pronounced effect of strain on the resistance and thermopower of NbSe 3 below 59 K. Jianhui et al 22 have conducted NMR experiments to study the density of states on the different chains in NbSe 3 . Although magnetic fields effects on the ohmic regime, below E T , are much more pronounced below the second transition than below T p1 , their results show that most of the changes in FS is due to changes in density of states on the chain associated with the upper CDW rather than the lower CDW.…”

Section: Discussionmentioning

confidence: 62%

NbSe3:Effect of uniaxial stress on the threshold field and fermiology

Kuh¹,

Tseng²,

Wagner³

et al. 1998

Phys. Rev. B

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We have measured the effect of elastic strain ǫ on the threshold field ET for the motion of the higher temperature charge density wave(CDW) in NbSe3. We find that ET exhibits a critical behavior, ET ∼ (1 − ǫ/ǫc) γ where ǫc is about 2.6%, γ ∼1.2. This expression remains valid over more than two decades of ET , up to the highest fields of about 1.5 kV/m measured using pulse techniques. Neither γ nor ǫc is very sensitive to the impurity content of the sample. The transition temperature is linear with ǫ, and dTP /dǫ = 10 K/% shows no anomaly near ǫc. The slope of the narrow band noise frequency vs. the CDW current does not change appreciably with ǫ. Shubnikov-de Haas measurements show that the extremal area of the Fermi surface decreases with increasing ǫ. We conclude that there is a very intimate relationship between pinning and the Fermiology in NbSe3.

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Magnetic-field effects inNbSe3

Cited by 12 publications

References 26 publications

NMR study of trialuminide intermetallics

NMR study of trialuminide intermetallics

NbS3: A unique quasi-one-dimensional conductor with three charge density wave transitions

NbSe3:Effect of uniaxial stress on the threshold field and fermiology

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