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008 | 160915s2014 gw | s |||| 0|eng d | ||
020 |
_a9783319011929 _9978-3-319-01192-9 |
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024 | 7 |
_a10.1007/978-3-319-01192-9 _2doi |
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035 | _ato000542000 | ||
040 |
_aSpringer _cSpringer _dRU-ToGU |
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050 | 4 | _aQC611.9-611.98 | |
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_aSCI021000 _2bisacsh |
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082 | 0 | 4 |
_a530.41 _223 |
100 | 1 |
_aCharnukha, Aliaksei. _eauthor. _9446921 |
|
245 | 1 | 0 |
_aCharge Dynamics in 122 Iron-Based Superconductors _helectronic resource _cby Aliaksei Charnukha. |
260 |
_aCham : _bSpringer International Publishing : _bImprint: Springer, _c2014. |
||
300 |
_aXI, 130 p. 43 illus., 24 illus. in color. _bonline resource. |
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336 |
_atext _btxt _2rdacontent |
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337 |
_acomputer _bc _2rdamedia |
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338 |
_aonline resource _bcr _2rdacarrier |
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490 | 1 |
_aSpringer Theses, Recognizing Outstanding Ph.D. Research, _x2190-5053 |
|
505 | 0 | _aIntroduction -- Iron-based superconductors -- Experimental and theoretical methods -- Results and discussion -- Summary. | |
520 | _aThis thesis combines highly accurate optical spectroscopy data on the recently discovered iron-based high-temperature superconductors with an incisive theoretical analysis. Three outstanding results are reported: (1) The superconductivity-induced modification of the far-infrared conductivity of an iron arsenide with minimal chemical disorder is quantitatively described by means of a strong-coupling theory for spin fluctuation mediated Cooper pairing. The formalism developed in this thesis also describes prior spectroscopic data on more disordered compounds. (2) The same materials exhibit a sharp superconductivity-induced anomaly for photon energies around 2.5 eV, two orders of magnitude larger than the superconducting energy gap. The author provides a qualitative interpretation of this unprecedented observation, which is based on the multiband nature of the superconducting state. (3) The thesis also develops a comprehensive description of a superconducting, yet optically transparent iron chalcogenide compound. The author shows that this highly unusual behavior can be explained as a result of the nanoscopic coexistence of insulating and superconducting phases, and he uses a combination of two complementary experimental methods - scanning near-field optical microscopy and low-energy muon spin rotation - to directly image the phase coexistence and quantitatively determine the phase composition. These data have important implications for the interpretation of data from other experimental probes. | ||
650 | 0 |
_aphysics. _9566227 |
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650 | 0 |
_aOptical materials. _9303073 |
|
650 | 0 |
_aNanotechnology. _9566290 |
|
650 | 1 | 4 |
_aPhysics. _9566228 |
650 | 2 | 4 |
_aStrongly Correlated Systems, Superconductivity. _9410741 |
650 | 2 | 4 |
_aSpectroscopy and Microscopy. _9369045 |
650 | 2 | 4 |
_aOptical and Electronic Materials. _9303078 |
650 | 2 | 4 |
_aNanoscale Science and Technology. _9410446 |
650 | 2 | 4 |
_aNanotechnology. _9566290 |
710 | 2 |
_aSpringerLink (Online service) _9143950 |
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773 | 0 | _tSpringer eBooks | |
830 | 0 |
_aSpringer Theses, Recognizing Outstanding Ph.D. Research, _9567110 |
|
856 | 4 | 0 | _uhttp://dx.doi.org/10.1007/978-3-319-01192-9 |
912 | _aZDB-2-PHA | ||
999 | _c399329 |