Zobrazeno 1 - 10
of 50
pro vyhledávání: '"V. Daumer"'
Autor:
K. Ortner, A. Pfeuffer-Jeschke, V. Latussek, Laurens W. Molenkamp, C. R. Becker, V. Daumer, G. Landwehr, X. C. Zhang
Publikováno v:
Journal of Alloys and Compounds. 371:6-9
The MBE growth of type III HgTe/Hg 1− x Cd x Te heterostructures will be discussed. Spin–orbit (s–o) coupling is particularily large in HgTe based quantum wells; the observed value of 17 meV is at least two to three times larger than values rep
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bd6dde7cedb2513dea09e60e9cfb4e93
https://doi.org/10.1016/j.jallcom.2003.04.002
https://doi.org/10.1016/j.jallcom.2003.04.002
Autor:
K. Ortner, C. R. Becker, Hartmut Buhmann, A. Pfeuffer-Jeschke, X. C. Zhang, Laurens W. Molenkamp, V. Latussek, V. Daumer, G. Landwehr, Yongsheng Gui
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 20:436-443
The band structure of HgTe quantum wells (QWs) has been determined from absorption experiments on superlattices in conjunction with calculations based on an 8×8 k · p model. The band structure combined with self-consistent Hartree calculations has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ad84fe6f4c7ea32b0a45f021a896261e
https://doi.org/10.1016/j.physe.2003.08.053
https://doi.org/10.1016/j.physe.2003.08.053
Akademický článek
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Autor:
C. R. Becker, Yongsheng Gui, Hartmut Buhmann, V. Hock, Laurens W. Molenkamp, V. Daumer, J. Liu
Publikováno v:
Journal of Superconductivity. 16:365-368
Magnetotransport measurements are used to study the peculiar properties of a modulation doped n-type Hg0.98Mn0.02Te magnetic 2DEG. The Rashba effect and giant Zeeman spin splitting are observed simultaneously and can be separated by temperature and g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19cd0f1beeac48ca92298e1054aac1b8
https://doi.org/10.1023/a:1023638125071
https://doi.org/10.1023/a:1023638125071
Autor:
V. Daumer, A. Pfeuffer-Jeschke, V. Latussek, J. Liu, K. Ortner, Yongsheng Gui, G. Landwehr, Laurens W. Molenkamp, X. C. Zhang, C. R. Becker, Hartmut Buhmann, J. Schmidt
Publikováno v:
Thin Solid Films. 412:129-138
The MBE growth of Hg 1− x Cd x Te alloys and type III HgTe/Hg 1− x Cd x Te heterostructures has been discussed, including similarities and differences between the (0 0 1) and (1 1 2)B orientations. Furthermore the MBE growth of HgTe based quantum
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::50863b34a39e30939a817f8cd2baab3a
https://doi.org/10.1016/s0040-6090(02)00324-3
https://doi.org/10.1016/s0040-6090(02)00324-3
Autor:
C. R. Becker, A. Pfeuffer-Jeschke, Hartmut Buhmann, Yongsheng Gui, K. Ortner, J. Liu, Laurens W. Molenkamp, V. Daumer, V. Hock
Publikováno v:
physica status solidi (b). 229:775-779
A series of gate controlled n-type asymmetrically modulation doped HgTe quantum wells (QWs) with Mn in one of the barriers have been investigated. From a Fourier analysis of the Shubnikovde Haas (SdH) oscillations, the population difference of the tw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4bf47e8ecac6985e27779106bcc1f6fc
https://doi.org/10.1002/1521-3951(200201)229:2<775::aid-pssb775>3.0.co
https://doi.org/10.1002/1521-3951(200201)229:2<775::aid-pssb775>3.0.co
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures. 12:416-419
We report on Rashba spin–orbit splitting in a series of gated n-type HgTe/Hg 0.3 Cd 0.7− x Mn x Te quantum wells with an inverted band structure. By analyzing the gate-voltage-dependent beating pattern observed in the Shubnikov–de Haas oscillat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::703ffa2559d39cb5700f99685fbb9132
https://doi.org/10.1016/s1386-9477(01)00320-4
https://doi.org/10.1016/s1386-9477(01)00320-4
Autor:
Ming Li, V. Daumer, V. Latussek, G. Landwehr, C. R. Becker, S. Oehling, K. Ortner, Weihua Tang, A. Pfeuffer-Jeschke
Publikováno v:
Journal of Crystal Growth. :1185-1189
The molecular beam epitaxial growth and the optical properties of (1 1 2)B oriented HgTe/Hg 1-x Cd x Te superlattices (SLs) are compared with those of (0 0 1) orientated SLs. First of all, the Hg 1-x Cd x Te barriers have a much higher Cd concentrati
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93e5689b118886e12c5d297f5727db31
https://doi.org/10.1016/s0022-0248(98)80248-0
https://doi.org/10.1016/s0022-0248(98)80248-0
Autor:
K. Ortner, Hartmut Buhmann, Laurens W. Molenkamp, J. Liu, Yongsheng Gui, V. Daumer, C. R. Becker
Publikováno v:
Applied Physics Letters. 79:1321-1323
We have observed a characteristic modulation in the amplitude of the Shubnikov–de Haas (SdH) oscillations and a large shift of node position with increasing temperature in the semimagnetic semiconductor Hg1−xMnxTe. The positions of the oscillatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a86e182bae44c46b9263b1c9a7d418c3
https://doi.org/10.1063/1.1397275
https://doi.org/10.1063/1.1397275
Autor:
A. Tschetschetkin, Laurens W. Molenkamp, V. Daumer, C. R. Becker, Jairo Sinova, Hartmut Buhmann, Markus König, E. M. Hankiewicz, V. Hock, M. Schäfer
Ring structures fabricated from HgTe/HgCdTe quantum wells have been used to study Aharonov-Bohm type conductance oscillations as a function of Rashba spin-orbit splitting strength. We observe non-monotonic phase changes indicating that an additional
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8bc2c7dbdc42eba95b6cdbde31b7bcc
