Superconductivity at 9.5 K in the Ti2GeC compound

Bortolozo, A. D.; Sant'Anna, O. H.; Dos Santos, C. A. M.; Machado, A. J. S.

Artykuł - szczegóły

Tytuł artykułu

Superconductivity at 9.5 K in the Ti2GeC compound

Autorzy

Bortolozo A. D. , Sant'Anna O. H. , Dos Santos C. A. M. , Machado A. J. S.

Wybrane pełne teksty z tego czasopisma

Identyfikatory

Warianty tytułu

Języki publikacji

Abstrakty

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 A° . Furthermore, the results highlight the highest critical temperature reported up to now for an H-phase.

Słowa kluczowe

superconductivity carbide nanolaminates MAX phase

Wydawca

De Gruyter

Czasopismo

Materials Science Poland

Rocznik

2012

Tom

Vol. 30, No. 2

Strony

92--97

Opis fizyczny

Bibliogr. 32 poz.

Twórcy

autor

Bortolozo A. D.

autor

Sant'Anna O. H.

autor

Dos Santos C. A. M.

autor

Machado A. J. S.

Departamento de Engenharia de Materiais, Escola de Engenharia de Lorena -USP, P.O. BOX 116, Lorena - SP, 12600-970 Brazil

Bibliografia

[1] NOWOTNY H., Prog. Solid State Chem., 2 (1970), 27.
[2] BARSOUM M.W., Prog. Solid State Chem., 28 (2000),201.
[3] BARSOUM M.W., BRODKIN D., EL-RAGHY T., Scr.Mater., 36 (1997), 535.
[4] BARSOUM M.W., EL-RAGHY T., J. Am. Ceram. Soc.,79 (1996), 1953.
[5] BARSOUM M.W., EL-RAGHY T., J. Mater. Synth. Process.,5 (1997), 197.
[6] BARSOUM M.W., EL-RAGHY T., Metall. Mater. Trans.A, 30 (1999), 363.
[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.
[8] BARSOUM M.W., FARBER L., EL-RAGHY T., LEVIN I., Metall. Mater. Trans. A, 30, (1999), 1727.
[9] BARSOUM M.W., YAROSCHUCK G., TYAGI S., Scr.Mater. , 37, (1997), 1583.
[10] EL-RAGHY T., BARSOUM M.W., J. Am. Ceram. Soc.,82, (1999), 2849.
[11] BARSOUM M.W., EL-RAGHY T., OGBUJI L., J. Electrochem.Soc., 144, (1997), 2508.
[12] EL-RAGHY T., BARSOUM M.W., ZAVALIANGOS A.,KALIDINDI S.R., J. Am. Ceram. Soc., 82 (1999), 2855.
[13] EL-RAGHY T., ZAVALIANGOS A., BARSOUM M.W.,KALIDINDI S.R., J. Am. Ceram. Soc., 80 (1997), 513.
[14] FARBER L., BARSOUM M.W., ZAVALIANGOS A., ELRAGHY T., LEVIN I., J. Am. Ceram. Soc., 81 (1998),1677.
[15] LOW I.M., LEE S.K., LAWN B., BARSOUM M.W.,J. Am. Ceram. Soc., 81 (1998), 225.
[16] MANOUN B., GULVE R.P., SAXENA S.K., GUPTA S.,BARSOUM M.W., ZHA C.S., Phys. Rev. B, 73 (2006),024110.
[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.
[18] BARSOUM M. W. RADOVIC M., Encyclopedia of Materials:Science and Technology, edited by K.H.J. Buschow.Elsevier, Amsterdam, 2004.
[19] BARSOUM M.W., TZENOV N., PROCOPIO A., ELRAGHY T., ALI M., J. Electrochem. Soc., 148 (2001),C551.
[20] JEITSCHKO W., NOWOTNY H., BENESOVSKY F.,Monatsch. Chem., 94 (1963), 1201.
[21] BARSOUM M.W., EL-RAGHY T., Am. Sci., 89 (2001),334.
[22] ZHOU Y.C., DONG H.Y., WANG X.H. CHEN S.Q.,J. Phys. Condens. Matter, 12 (2000), 9617.
[23] BORTOLOZO A.D., SANT’ANNA O.H., DOS SANTOS C.A.M., MACHADO A.J.S., Solid. State. Commun., 144,10 (2007), 419.
[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.
[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.
[26] VILLARS P., CALVERT L.D., Materials Park: ASM International,3 (1991).
[27] KRAUSS W., NOLSE G., J. Appl. Crystallogr., 29 (1996),301.
[28] WERTHAMER N.R., HELFAND E., HOHENBERG P.C.,Phys. Rev., 147 (1966), 295.
[29] MURAKAMI T., XU C.N., KITAHARA A., KAWAHARA M., TAKAHASHI Y., INUI H., YAMAGUCHI M., Intermetallics,7 (1999), 1043.
[30] ISHIDA T., GOLDFARB R.B., KOS A.B., CROSS R.W.,Physical Review B, 46 (1992), 18.
[31] JEITSCHKO W., NOWOTNY H., BENESOVSKY F.,Monatsh. Chem., 95, 1 (1964).
[32] LOUGHRAN R.J., GOLDFARB R.B., Physica C, 181(1991), 138.

Typ dokumentu

Bibliografia

Identyfikator YADDA

bwmeta1.element.baztech-article-BPW7-0020-0074