Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing
In n—p bilayer systems an exotic phase-coherent state emerges due to Coulomb pairing of
 n-layer electrons with p-layer holes. Unlike Josephson junctions, the order parameter phase may be
 locked by matrix elements of interlayer tunneling in n—p bilayers. Here we show how the phase&a...
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| Published in: | Физика низких температур |
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| Date: | 2004 |
| Main Authors: | , |
| Format: | Article |
| Language: | English |
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Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
2004
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| Online Access: | https://nasplib.isofts.kiev.ua/handle/123456789/119475 |
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| Journal Title: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Cite this: | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing / A.I. Bezuglyj, S.I. Shevchenko // Физика низких температур. — 2004. — Т. 30, № 3. — С. 282-287. — Бібліогр.: 21 назв. — англ. |
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Digital Library of Periodicals of National Academy of Sciences of Ukraine| _version_ | 1862648931423354880 |
|---|---|
| author | Bezuglyj, A.I. Shevchenko, S.I. |
| author_facet | Bezuglyj, A.I. Shevchenko, S.I. |
| citation_txt | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing / A.I. Bezuglyj, S.I. Shevchenko // Физика низких температур. — 2004. — Т. 30, № 3. — С. 282-287. — Бібліогр.: 21 назв. — англ. |
| collection | DSpace DC |
| container_title | Физика низких температур |
| description | In n—p bilayer systems an exotic phase-coherent state emerges due to Coulomb pairing of
n-layer electrons with p-layer holes. Unlike Josephson junctions, the order parameter phase may be
locked by matrix elements of interlayer tunneling in n—p bilayers. Here we show how the phase
locking phenomenon specifies the response of the electron—hole condensate to interlayer voltages.
In the absence of an applied magnetic field, the phase is steady-state (locked) at low interlayer
voltages, V < Vc, but the phase increases monotonically with time (is unlocked) at V > Vc. The
change in the system dynamics at V = Vc gives rise to a peak in the differential tunneling conductance.
The peak width Vc is proportional to the absolute value of the tunneling matrix element
|T₁₂|, but its height does not depend on |T12|; thus the peak is sharp for small |T₁₂|. An in-plane magnetic
field reduces the peak height considerably. The present results are in qualitative agreement
with the zero-bias peak behavior that has recently been observed in bilayer quantum Hall
pseudoferromagnets with spontaneous interlayer phase coherence.
|
| first_indexed | 2025-12-01T14:45:32Z |
| format | Article |
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| id | nasplib_isofts_kiev_ua-123456789-119475 |
| institution | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| issn | 0132-6414 |
| language | English |
| last_indexed | 2025-12-01T14:45:32Z |
| publishDate | 2004 |
| publisher | Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України |
| record_format | dspace |
| spelling | Bezuglyj, A.I. Shevchenko, S.I. 2017-06-07T04:36:39Z 2017-06-07T04:36:39Z 2004 Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing / A.I. Bezuglyj, S.I. Shevchenko // Физика низких температур. — 2004. — Т. 30, № 3. — С. 282-287. — Бібліогр.: 21 назв. — англ. 0132-6414 PACS: 73.43.–f, 73.43.Jn https://nasplib.isofts.kiev.ua/handle/123456789/119475 In n—p bilayer systems an exotic phase-coherent state emerges due to Coulomb pairing of
 n-layer electrons with p-layer holes. Unlike Josephson junctions, the order parameter phase may be
 locked by matrix elements of interlayer tunneling in n—p bilayers. Here we show how the phase
 locking phenomenon specifies the response of the electron—hole condensate to interlayer voltages.
 In the absence of an applied magnetic field, the phase is steady-state (locked) at low interlayer
 voltages, V < Vc, but the phase increases monotonically with time (is unlocked) at V > Vc. The
 change in the system dynamics at V = Vc gives rise to a peak in the differential tunneling conductance.
 The peak width Vc is proportional to the absolute value of the tunneling matrix element
 |T₁₂|, but its height does not depend on |T12|; thus the peak is sharp for small |T₁₂|. An in-plane magnetic
 field reduces the peak height considerably. The present results are in qualitative agreement
 with the zero-bias peak behavior that has recently been observed in bilayer quantum Hall
 pseudoferromagnets with spontaneous interlayer phase coherence. This work was supported by the INTAS program,
 grant No 01-2344. en Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України Физика низких температур Свеpхпpоводимость, в том числе высокотемпеpатуpная Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing Article published earlier |
| spellingShingle | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing Bezuglyj, A.I. Shevchenko, S.I. Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| title | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing |
| title_full | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing |
| title_fullStr | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing |
| title_full_unstemmed | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing |
| title_short | Order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing |
| title_sort | order parameter phase locking as a cause of a zero bias peak in the differential tunneling conductance of bilayers with electron-hole pairing |
| topic | Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| topic_facet | Свеpхпpоводимость, в том числе высокотемпеpатуpная |
| url | https://nasplib.isofts.kiev.ua/handle/123456789/119475 |
| work_keys_str_mv | AT bezuglyjai orderparameterphaselockingasacauseofazerobiaspeakinthedifferentialtunnelingconductanceofbilayerswithelectronholepairing AT shevchenkosi orderparameterphaselockingasacauseofazerobiaspeakinthedifferentialtunnelingconductanceofbilayerswithelectronholepairing |