1. bookVolume 30 (2012): Issue 2 (June 2012)
Journal Details
License
Format
Journal
eISSN
2083-134X
ISSN
2083-1331
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Open Access

Superconductivity at 9.5 K in the Ti2GeC compound

Published Online: 18 Jul 2012
Volume & Issue: Volume 30 (2012) - Issue 2 (June 2012)
Page range: 92 - 97
Journal Details
License
Format
Journal
eISSN
2083-134X
ISSN
2083-1331
First Published
16 Apr 2011
Publication timeframe
4 times per year
Languages
English
Abstract

We report on the investigation of the Ti2GeC properties by X-ray diffraction, magnetic and electrical resistivity measurements. Polycrystalline samples of Ti2GeC with nominal compositions were prepared by solid state reaction. X-ray powder patterns suggest that all peaks can be indexed with the hexagonal phase of Cr2AlC prototype. The temperature dependence of both electrical resistivity and magnetization indicate a bulk type-II superconductivity at 9.5 K. Magnetoresistive data suggest an upper critical field of Bc2 ∼ 8.1 T and coherence length ∼ 61 ° Å. Furthermore, the results highlight the highest critical temperature reported up to now for an H-phase.

Keywords

[1] Nowotny H., Prog. Solid State Chem., 2 (1970), 27. http://dx.doi.org/10.1016/0022-4596(70)90028-910.1016/0022-4596(70)90028-9Search in Google Scholar

[2] Barsoum M.W., Prog. Solid State Chem., 28 (2000), 201. http://dx.doi.org/10.1016/S0079-6786(00)00006-610.1016/S0079-6786(00)00006-6Search in Google Scholar

[3] Barsoum M.W., Brodkin D., El-raghy T., Scr. Mater., 36 (1997), 535. http://dx.doi.org/10.1016/S1359-6462(96)00418-610.1016/S1359-6462(96)00418-6Search in Google Scholar

[4] Barsoum M.W., El-Raghy T., J. Am. Ceram. Soc., 79 (1996), 1953. http://dx.doi.org/10.1111/j.1151-2916.1996.tb08018.x10.1111/j.1151-2916.1996.tb08018.xSearch in Google Scholar

[5] Barsoum M.W., El-Raghy T., J. Mater. Synth. Process., 5 (1997), 197. Search in Google Scholar

[6] Barsoum M.W., El-Raghy T., Metall. Mater. Trans. A, 30 (1999), 363. http://dx.doi.org/10.1007/s11661-999-0325-010.1007/s11661-999-0325-0Search in Google Scholar

[7] Barsoum M.W., El-Raghy T., Rawn C.J, Porter W.D., Wang H., Payzant A., Hubbard C., J. Phys. Chem. Solids, 60 (1999), 429. http://dx.doi.org/10.1016/S0022-3697(98)00313-810.1016/S0022-3697(98)00313-8Search in Google Scholar

[8] Barsoum M.W., Farber L., El-raghy T., Levin I., Metall. Mater. Trans. A, 30, (1999), 1727. http://dx.doi.org/10.1007/s11661-999-0172-z10.1007/s11661-999-0172-zSearch in Google Scholar

[9] Barsoum M.W., Yaroschuck G., Tyagi S., Scr. Mater., 37, (1997), 1583. http://dx.doi.org/10.1016/S1359-6462(97)00288-110.1016/S1359-6462(97)00288-1Search in Google Scholar

[10] El-Raghy T., Barsoum M.W., J. Am. Ceram. Soc., 82, (1999), 2849. http://dx.doi.org/10.1111/j.1151-2916.1999.tb02166.x10.1111/j.1151-2916.1999.tb02166.xSearch in Google Scholar

[11] Barsoum M.W., El-Raghy T., Ogbuji L., J. Electrochem. Soc., 144, (1997), 2508. http://dx.doi.org/10.1149/1.183784610.1149/1.1837846Search in Google Scholar

[12] El-Raghy T., Barsoum M.W., Zavaliangos A., Kalidindi S.R., J. Am. Ceram. Soc., 82 (1999), 2855. http://dx.doi.org/10.1111/j.1151-2916.1999.tb02167.x10.1111/j.1151-2916.1999.tb02167.xSearch in Google Scholar

[13] El-Raghy T., Zavaliangos A., Barsoum M.W., Kalidindi S.R., J. Am. Ceram. Soc., 80 (1997), 513. http://dx.doi.org/10.1111/j.1151-2916.1997.tb02861.x10.1111/j.1151-2916.1997.tb02861.xSearch in Google Scholar

[14] Farber L., Barsoum M.W., Zavaliangos A., Elraghy T., Levin I., J. Am. Ceram. Soc., 81 (1998), 1677. http://dx.doi.org/10.1111/j.1151-2916.1998.tb02532.x10.1111/j.1151-2916.1998.tb02532.xSearch in Google Scholar

[15] Low I.M., Lee S.K., Lawn B., Barsoum M.W., J. Am. Ceram. Soc., 81 (1998), 225. http://dx.doi.org/10.1111/j.1151-2916.1998.tb02320.x10.1111/j.1151-2916.1998.tb02320.xSearch in Google Scholar

[16] Manoun B., Gulve R.P., Saxena S.K., Gupta S., Barsoum M.W., Zha C.S., Phys. Rev. B, 73 (2006), 024110. http://dx.doi.org/10.1103/PhysRevB.73.02411010.1103/PhysRevB.73.024110Search in Google Scholar

[17] Hettinger J.D., Lofland S.E., Finkel P., Meehan T., Palma J., Harrell K., Gupta S., Ganguly A., El-raghy T., Barsoum M.W., Phys. Rev. B, 72 (2005), 115120. http://dx.doi.org/10.1103/PhysRevB.72.11512010.1103/PhysRevB.72.115120Search in Google Scholar

[18] Barsoum M. W. Radovic M., Encyclopedia of Materials: Science and Technology, edited by K.H.J. Buschow. Elsevier, Amsterdam, 2004. Search in Google Scholar

[19] Barsoum M.W., Tzenov N., Procopio A., Elraghy T., Ali M., J. Electrochem. Soc., 148 (2001), C551. http://dx.doi.org/10.1149/1.138025610.1149/1.1380256Search in Google Scholar

[20] Jeitschko W., Nowotny H., Benesovsky F., Monatsch. Chem., 94 (1963), 1201. http://dx.doi.org/10.1007/BF0090571110.1007/BF00905711Search in Google Scholar

[21] Barsoum M.W., El-Raghy T., Am. Sci., 89 (2001), 334. 10.1511/2001.28.736Search in Google Scholar

[22] Zhou Y.C., Dong H.Y., Wang X.H. Chen S.Q., J. Phys. Condens. Matter, 12 (2000), 9617. http://dx.doi.org/10.1088/0953-8984/12/46/30910.1088/0953-8984/12/46/309Search in Google Scholar

[23] Bortolozo A.D., Sant’anna O.H., dos Santos C.A.M., Machado A.J.S., Solid. State. Commun., 144,10 (2007), 419. http://dx.doi.org/10.1016/j.ssc.2007.09.02810.1016/j.ssc.2007.09.028Search in Google Scholar

[24] Bortolozo A.D., Sant’anna O.H., da Luz M.S., dos Santos C.A.M., Pereira A.S., Trentin K.S., Machado A.J.S., Solid. State. Commun., 139 (2006), 57. http://dx.doi.org/10.1016/j.ssc.2006.05.00610.1016/j.ssc.2006.05.006Search in Google Scholar

[25] Bortolozo A.D., Serrano G., Serquis A., Rodrigues Jr D., Dos Santos C.A.M., Fisk Z., Machado A.J.S., Solid State Commun., 150 (2010), 1364. http://dx.doi.org/10.1016/j.ssc.2010.04.03610.1016/j.ssc.2010.04.036Search in Google Scholar

[26] Villars P., Calvert L.D., Materials Park: ASM International, 3 (1991). Search in Google Scholar

[27] Krauss W., Nolse G., J. Appl. Crystallogr., 29 (1996), 301. http://dx.doi.org/10.1107/S002188989501492010.1107/S0021889895014920Search in Google Scholar

[28] Werthamer N.R., Helfand E., Hohenberg P.C., Phys. Rev., 147 (1966), 295. http://dx.doi.org/10.1103/PhysRev.147.29510.1103/PhysRev.147.295Search in Google Scholar

[29] Murakami T., Xu C.N., Kitahara A., Kawahara M., Takahashi Y., Inui H., Yamaguchi M., Intermetallics, 7 (1999), 1043. http://dx.doi.org/10.1016/S0966-9795(99)00017-510.1016/S0966-9795(99)00017-5Search in Google Scholar

[30] Ishida T., Goldfarb R.B., Kos A.B., Cross R.W., Physical Review B, 46 (1992), 18. 10.1103/PhysRevB.46.12080Search in Google Scholar

[31] Jeitschko W., Nowotny H., Benesovsky F., Monatsh. Chem., 95, 1 (1964). http://dx.doi.org/10.1007/BF0090924510.1007/BF00909245Search in Google Scholar

[32] Loughran R.J., Goldfarb R.B., Physica C, 181 (1991), 138. http://dx.doi.org/10.1016/0921-4534(91)90346-Z10.1016/0921-4534(91)90346-ZSearch in Google Scholar

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