journal article·2005-06

Superconductivity in dense Mg11-xMxB2 (M = Zr, Nb, Mo; x = 0.05) materials sintered under pressure

S. Kalavathi, C. Divakar

Bulletin of Materials Science· Volume 28· Issue 3
Publisher page

Abstract

Dense compacts of superconducting MgB2 material have been produced by sintering under 3 GPa pressure and 900°C using a cubic anvil apparatus. The starting material was produced by the powder in tube (PIT) method at low pressure and in argon atmosphere. The effect of substitution of Mg sites with non-magnetic 4d-transition metals (Zr, Nb, Mo) on the superconducting transition temperature (T inc) has been studied by resistivity and susceptibility measurements. The results indicate that there is a small gradual reduction in the transition temperature as we move from Zr to Mo.
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Research context

OpenAlex topics: Superconductivity in MgB2 and Alloys · Physics of Superconductivity and Magnetism · Thermal Expansion and Ionic Conductivity

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (15)

Show source-provided references
1. Amy Y Liu, Imazin I and Jens Kortus 2001Phys. Rev. Lett. 87 08700510.1103/PhysRevLett.87.087005 ↗
2. An J M and Pickett W E 2001Phys. Rev. Lett. 86 436610.1103/PhysRevLett.86.4366 ↗
3. Angst M, Puzniak R, Wisniewski A, Jun J, Kazakov S M, Karpinski J, Roos J and Keller H 2002Phys. Rev. Lett. 88 16700410.1103/PhysRevLett.88.167004 ↗
4. Bharathi A, Jemima Balaselvi S, Kalavathi S, Reddy G L N, Sankara Sastry V, Hariharan Y and Radhakrishnan T S 2002Physica C 370 21110.1016/S0921-4534(02)01139-5 ↗
5. Bhaumik S K, Divakar C, Murali Mohan and Singh A K 1996Rev. Sci. Instrum. 67 367910.1063/1.1147135 ↗
6. Buzea C and Yamashita Y 2001Supercond. Sci. &Technol. 14 R11510.1088/0953-2048/14/11/201 ↗
7. Jin R, Paranthaman M, Zhai H Y, Christen H M, Christen D K and Mandrus D, Cond-matt./0104411
8. Jung C U, Park M S, Kang W N, Kim M S, Kim K H P, Lee S Y and Lee S 2001Appl. Phys. Lett. 78 415710.1063/1.1382632 ↗
9. Kang WNetal 2001Appl. Phys. Lett. 78 98210.1063/1.1392979 ↗
10. Kazakov S M, Angst M and Karpinski J, Cond-matt./0103350
11. Kortus J, Mazin I I, Belashchenko K D, Antropov V P and Boyer L L 2001Phys. Rev. Lett. 86 465610.1103/PhysRevLett.86.4656 ↗
12. Medvedeva N I, Ivanovskii A L, Medvedeva J E and Freeman A J 2001Phys. Rev. B64 020502(R)10.1103/PhysRevB.64.020502 ↗
13. Moritomo Y and Sh.Xu Cond-matt./0104568
14. Nagamatsu J, Nakagawa N, Muranaka T and Akimitsu J 2001Nature 410 6310.1038/35065039 ↗
15. Slusky J Set al 2001Nature 410 34310.1038/35066528 ↗