Abstract:
We have calculated the diffusive conductivity and ballistic conductance of the layered compounds YMn2Ge2 and LaMn2Ge2. For YMn2Ge2 we obtain a negative band contribution to the giant magnetoresistance. For LaMn2Ge2 we show that the band contribution can already explain the experimentally observed large positive magnetoresistance if a nearly ferromagnetic structure is considered.
Registro:
Documento: |
Artículo
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Título: | Calculation of the magnetoresistance of YMn2Ge2 and LaMn2Ge2 |
Autor: | Milano, J.; Llois, A.M. |
Filiación: | Laboratorio TANDAR, Centro Atómico Constituyentes, Comisión Nacional de Energía Atómica, Av. Gral. Paz 1499, 1650 Partido de Gral. San Martín, Argentina Departamento de Física J.J. Giambiagi, Universidad de Buenos Aires, Pabellón I, Ciudad Universitaria, 1429 Buenos Aires, Argentina
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Año: | 2000
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Volumen: | 220
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Número: | 1
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Página de inicio: | 409
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Página de fin: | 412
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DOI: |
http://dx.doi.org/10.1002/1521-3951(200007)220:1<409::AID-PSSB409>3.0.CO;2-P |
Título revista: | Physica Status Solidi (B) Basic Research
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Título revista abreviado: | Phys. Status Solidi B Basic Res.
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ISSN: | 03701972
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_03701972_v220_n1_p409_Milano |
Referencias:
- Baibich, M.N., Broto, J.M., Fert, A., Nguyen Van Dau, F., Petroff, F., Etienne, P., Creuzet, G., Chazelas, J., (1988) Phys. Rev. Lett., 61, p. 2472
- Ban, Z., Sikirica, M., (1965) Acta Cryst., 18, p. 564
- Hofmann, M., Campbell, S.J., Kennedy, S.J., Zhao, X.L., (1997) J. Magn. Magn. Mater., 176, p. 279
- Venturini, G., (1996) J. Alloys and Comp., 232, p. 133
- Narasimhan, K.S.V.L., Rao, V.U.S., Bergner, R.L., Wallace, W.E., (1975) J. Appl. Phys., 46, p. 4957
- Tomka, G.J., Kapusta, C.Z., Ritter, C., Riedi, P.C., Cywinski, R., Buschow, K.H.J., (1997) Physica, 230-232 B, p. 727
- Siek, S., Szytuła, A., Leciewicz, J., (1981) Solid State Commun., 39, p. 863
- Szytułla, A., Szott, I., (1981) Solid State Commun., 40, p. 199
- George, J.M., Pereira, L.G., Barthélémy, A., Petroff, F., Steren, L., Duvail, J.L., Fert, A., Schroeder, P.A., (1994) Phys. Rev. Lett., 72, p. 408
- Mallik, R., Sampathkumaran, E.V., Paulose, P.L., (1997) Appl. Phys. Lett, 71, p. 2385
- Sharvin, Y., (1993) Soviet Phys. - J. Exper. Theor. Phys., 21, p. 655
- Ziman, J., (1960) Electrons and Phonons, , Oxford University Press, London
- Schep, K.M., Kelly, P.J., Bauer, G.E.W., (1995) Phys. Rev. Lett, 74, p. 586
- Blaha, P., Schwarz, K., Luitz, J., (1997) WIEN97, , Vienna University of Technology, Vienna
- Blaha, P., Schwarz, K., Sorantin, P., Trickey, S.B., (1990) Comput. Phys. Commun., 59, p. 399
- Venturini, G., Malaman, B., Roques, B., (1989) J. Solid State Chem., 79, p. 136
- Venturini, G., Malaman, B., (1996) J. Alloys and Comp., 235, p. 201
- Dederichs, P.H., Blügel, S., Zeller, R., Akai, H., (1984) Phys. Rev. Lett., 53, p. 2512
Citas:
---------- APA ----------
Milano, J. & Llois, A.M.
(2000)
. Calculation of the magnetoresistance of YMn2Ge2 and LaMn2Ge2. Physica Status Solidi (B) Basic Research, 220(1), 409-412.
http://dx.doi.org/10.1002/1521-3951(200007)220:1<409::AID-PSSB409>3.0.CO;2-P---------- CHICAGO ----------
Milano, J., Llois, A.M.
"Calculation of the magnetoresistance of YMn2Ge2 and LaMn2Ge2"
. Physica Status Solidi (B) Basic Research 220, no. 1
(2000) : 409-412.
http://dx.doi.org/10.1002/1521-3951(200007)220:1<409::AID-PSSB409>3.0.CO;2-P---------- MLA ----------
Milano, J., Llois, A.M.
"Calculation of the magnetoresistance of YMn2Ge2 and LaMn2Ge2"
. Physica Status Solidi (B) Basic Research, vol. 220, no. 1, 2000, pp. 409-412.
http://dx.doi.org/10.1002/1521-3951(200007)220:1<409::AID-PSSB409>3.0.CO;2-P---------- VANCOUVER ----------
Milano, J., Llois, A.M. Calculation of the magnetoresistance of YMn2Ge2 and LaMn2Ge2. Phys. Status Solidi B Basic Res. 2000;220(1):409-412.
http://dx.doi.org/10.1002/1521-3951(200007)220:1<409::AID-PSSB409>3.0.CO;2-P