Untitled

Balamurugan, S.; Gopalakrishnan, I. K.; Yakhmi, J. V.; Selvam, Parasuraman

doi:10.1023/a:1012243831169

Cited by 4 publications

(5 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Recently, a similar reduced pinning behaviour was also observed by our group in (Hg, Cr)/Sr-1201 [21]. The magnetic irreversibility line and magnetic hysteresis show the reduced pinning properties of (Hg, Cr)/Sr-1201 [21].…”

Section: Introductionsupporting

confidence: 83%

“…However, Choi et al [12] have reported contrary to this speculation based on reduced interlayer distance or the extended defects of (Hg, Cr)/Sr-1201 [5]. Recently, a similar reduced pinning behaviour was also observed by our group in (Hg, Cr)/Sr-1201 [21]. The magnetic irreversibility line and magnetic hysteresis show the reduced pinning properties of (Hg, Cr)/Sr-1201 [21].…”

Section: Introductionsupporting

confidence: 44%

“…The best sample (Hg, Cr)/Sr-1201(N1) (prepared from the nitrate source) was further characterized by the magnetic irreversibility line (IL) from ZFC and FC dc-magnetization measurements at several applied magnetic fields and the magnetic hysteresis (M-H ) loops are generated at 5 and 10 K [21]. These results showed reduced pinning properties of (Hg, Cr)/Sr-1201 as compared to HgBa 2 CuO 4+δ [26].…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Synthesis protocol and superconducting properties of (Hg,Cr)Sr₂CuO_4+δ

Balamurugan¹,

Selvam²

2004

Supercond. Sci. Technol.

View full text Add to dashboard Cite

In this paper, we report the study of our results on the synthesis protocol and the superconducting properties of (Hg, Cr)Sr 2 CuO 4+δ . We have used several distinct approaches for the synthesis of good quality (Hg, Cr)/Sr-1201 samples by varying the processing parameters such as starting materials, precursor and annealing treatments as well as the sample container. The (Hg, Cr)/Sr-1201 samples were synthesized in partial vacuum, and systematically characterized by powder XRD, χ -T , dc-electrical-resistance and dc-magnetization measurements. XRD data confirm that they are of tetragonal Hg/Ba-1201 type structure. Good quality (Hg, Cr)/Sr-1201 samples were obtained from the sample prepared using a strontium nitrate source with a maximum T onset c ∼ 60 K, which is higher than the samples prepared using a carbonate source (T onset c ∼ 56 K). It is found that T c is not affected by the subsequent Ar or O 2 annealing treatment. Remarkably, the annealed samples show significant improvement in the diamagnetic transition.

show abstract

Section: Introductionsupporting

confidence: 83%

Section: Introductionsupporting

confidence: 44%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Synthesis protocol and superconducting properties of (Hg,Cr)Sr₂CuO_4+δ

Balamurugan¹,

Selvam²

2004

Supercond. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…In a recent paper [38], we described the synthesis of (Hg, Cr)/Sr-1201 samples by two different approaches. In the first approach, we carried out the phase formation reaction by directly keeping the constituents as a precursor and HgO of nominal (Hg, Cr)/Sr-1201 in pellet form and sealed in a quartz tube under partial vacuum.…”

Section: Hg-cupratesmentioning

confidence: 99%

“…We determined the irreversibility line (IL) for (Hg, Cr)/Sr-1201 using dc-magnetization measurements as a function of temperature at different applied fields [72]. Furthermore, we calculated the critical current density (J c ) according to Bean's critical state model from the hysteresis loop data.…”

Section: (Hg Cr)sr 2 Cuo 4+δ Systemmentioning

confidence: 99%