Reply to comment by D. Krankowsky et al. on “Low‐pressure dependency of the isotopic enrichment in ozone: Stratospheric implications” by S. K. Bhattacharya et al.

Bhattacharya, S. K.; Chakraborty, Subrata; Savarino, Joël; Thiemens, M. H.

doi:10.1029/2003jd003482

Cited by 65 publications

(114 citation statements)

References 8 publications

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“…One of these assumptions, the spontaneous decay of the magnetic field, continues to be extremely controversial. Since GO's original study, many papers have been written presenting arguments for and against field decay (see e.g., Lyne, Manchester & Taylor 1985;Bailes 1989;Narayan & Ostriker 1990;Bhattacharya et al 1992; see also the contribution by van Leeuwen et al in this volume). A less model-dependent approachto the problem, first developed by Large (1971), can be summarized by the following expression:…”

Section: Landmark Papers In Pulsar Statisticsmentioning

confidence: 99%

The Galactic Population and Birth Rate of Radio Pulsars

Lorimer

2004

Symp. - Int. Astron. Union

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Abstract. We review current understanding of the underlying, as opposed to the observed, pulsar population. The observed sample is heavily biased by selection effects, so that surveys see less than 10% of all potentially observable pulsars. We compare various techniques used to correct the sample for these biases. By far the most significant recent development has been the discovery of over 700 pulsars in the Parkes Multibeam (PM) survey. This new sample is far less affected by selection effects and we use it to make a preliminary analysis of the Galactic pulsar distribution, finding further evidence for a deficit of pulsars in the inner Galaxy.

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Section: Landmark Papers In Pulsar Statisticsmentioning

confidence: 99%

The Galactic Population and Birth Rate of Radio Pulsars

Lorimer

2004

Symp. - Int. Astron. Union

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“…For cut-off values of present day simulations (1/a ≤ 3GeV) PT does not reproduce the non-perturbatively fixed CSW (g0) [27]. For further examples of problems with PT when calculating operator improvement coefficients see Table I in [28]. The conclusion is that in the very few cases where PT was systematically compared with numerical results on physical quantities a judiciously chosen PT scheme seems to work well down to such low scales as µ ≈ 1.3GeV.…”

Section: Operator Product Expansion (Ope)mentioning

confidence: 99%

Lattice 2001: Reflections

Hasenfratz

2002

Nuclear Physics B - Proceedings Supplements

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“…It has been demonstrated in semiconductors [3], ruthanates [17], nickelates [18], other copper oxides [18,19], and manganites [20], where transport experiments indicate that at least some glassy features originate from slow charge dynamics. Further evidence supporting that glassiness in the charge and the spin channels emerge hand-in-hand was recently provided by measurements of the dielectric constant on La 2 Cu 1−x Li x O 4 and La 2−x Sr x N iO 4 [18].…”

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confidence: 99%

Self-generated electronic heterogeneity and quantum glassiness in the high-temperature superconductors

Panagopoulos

Dobrosavljević

2005

Phys. Rev. B

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We present a systematic study of the spin and charge dynamics of copper oxide superconductors as a function of carrier concentration x. Our results portray a coherent physical picture, which reveals a quantum critical point at optimum doping (x = xopt), and the formation of an inhomogeneous glassy state at x < xopt. This mechanism is argued to arise as an intrinsic property of doped Mott insulators, and therefore to be largely independent of material quality and level of disorder.Many interesting materials ranging from magnetorestrictive manganite films [1] and field-effect transistors [2,3], to unconventional low dimensional superconductors [4], find themselves close to the metal-insulator transition. In this regime, competition between several distinct ground states [4] produces unusual behavior, displaying striking similarities in a number of different systems. Electronic heterogeneity [1,5] emerges, giving rise to "mesoscopic" coexistence of different ordered phases. Typically, a large number of possible configurations of these local regions have comparable energies, resulting in slow relaxation, aging, and other signatures of glassy systems. Because the stability of such ordering is controlled by doping-dependent quantum fluctuations [6,7] introduced by itinerant carriers, these systems can be regarded as prototypical quantum glasses -a new paradigm of strongly correlated matter.In this Letter we report the emergence and evolution of dynamical heterogeneity and glassy behavior across the phase diagram of the high-transition-temperature (T c ) superconductors (HTS). Based on data of the spin and charge dynamics, we draw a phase diagram (Fig. 1) and propose that self generated glassiness [5] may be a key feature necessary to understand many of the unconventional properties of both the superconducting and the normal state.Glassiness in the pseudo-gap phase. In the archetypal HTS, La 2−x Sr x CuO 4 (LSCO) the parent 2D antiferromagnetic insulator (AFI) La 2 CuO 4 displays a sharp peak in the magnetic susceptibility at the Neel temperature T N = 300K. T N decreases with hole-doping and the transition width broadens (Fig. 2 -upper panel). Concurrently, there is systematic experimental evidence from various techniques and on several HTS that a second freezing transition (T F ) emerges at lower temperatures with the first added holes (Fig. 2) [8,9,10,11,12,13]. At x > 0.02, T N = 0 but the short range order persists [14]: the low-field susceptibility displays a cusp at low temperatures and a thermal hysteresis below, characteristic of a spin glass transition (T g ) (Fig. 2 -upper panel). At T < T g the material displays memory effects like "traditional" spin glasses and is described by an Edwards-Anderson order parameter [15]. Interestingly, it is at this doping range that a pseudogap phase develops [4,16].

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Reply to comment by D. Krankowsky et al. on “Low‐pressure dependency of the isotopic enrichment in ozone: Stratospheric implications” by S. K. Bhattacharya et al.

Cited by 65 publications

References 8 publications

The Galactic Population and Birth Rate of Radio Pulsars

The Galactic Population and Birth Rate of Radio Pulsars

Lattice 2001: Reflections

Self-generated electronic heterogeneity and quantum glassiness in the high-temperature superconductors

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