東華大學圖書館 |

語系: 繁體中文

說明(常見問題)

回圖書館首頁

手機版館藏查詢

登入

回首頁

切換: 標籤 | MARC模式 | ISBD

Pseudogap and precursor superconduct...

SpringerLink (Online service)

FindBook

Google Book

Amazon

博客來

Pseudogap and precursor superconductivity study of Zn doped YBCO

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Pseudogap and precursor superconductivity study of Zn doped YBCO/ by Ece Uykur.
作者:	Uykur, Ece.
出版者:	Tokyo :Springer Japan : : 2015.,
面頁冊數:	xiii, 93 p. :ill. (some col.), digital ;24 cm.
內容註:	Introduction -- High Temperature Cuprate Superconductors -- Experimental Procedure -- Results and Discussion -- Conclusion.
Contained By:	Springer eBooks
標題:	High temperature superconductivity. -
電子資源:	http://dx.doi.org/10.1007/978-4-431-55510-0
ISBN:	9784431555100 (electronic bk.)

Pseudogap and precursor superconductivity study of Zn doped YBCO
Uykur, Ece.

Pseudogap and precursor superconductivity study of Zn doped YBCO[electronic resource] /by Ece Uykur. - Tokyo :Springer Japan :2015. - xiii, 93 p. :ill. (some col.), digital ;24 cm. - Springer theses,2190-5053. - Springer theses..

Introduction -- High Temperature Cuprate Superconductors -- Experimental Procedure -- Results and Discussion -- Conclusion.

In this thesis, the pseudogap and the precursor superconducting state, which are of great importance in clarifying the superconductivity mechanism in high-temperature cuprate superconductors, are investigated with a c-axis optical study in YBa2(Cu1-xZnx)3Oy. Testing was performed over a wide energy range with smaller temperature intervals for several Zn-substituted samples, as well as for several carrier-doping levels. A spectral weight (SW) analysis, in which the pseudogap behavior can be separated from the superconducting condensate with the SW transfer to the high-energy region, revealed that the pseudogap is not the precursor of the superconductivity (carriers moving to the high-energy region with pseudogap opening never contribute to the superconducting condensation). Moreover, the high-energy transfer continues even below Tc for the Zn-substituted samples (in which we weaken the superconductivity), which gives evidence to the coexistence of the pseudogap and the superconducting gap below Tc. On the other hand, the analysis of optical conductivity revealed that a precursor state to superconductivity can be defined at temperatures much higher than Tc. The superconducting carrier density (ns) was calculated for each temperature (above and below Tc) and the results confirmed the existence of ns at temperatures above Tc. The observed real superconducting condensate (ns) above Tc puts a serious constraint on the theory for high- Tc superconductivity. A theory based on an inhomogeneous superconducting state, in which a microscopically phase-separated state in a doped Mott insulator can be observed, is the most plausible candidate. This theory can explain the existence of ns and the observed temperature range for the precursor superconducting state. The results obtained show that the pseudogap coexists with superconductivity below Tc and is not the precursor of superconductivity. On the other hand, it is also possible to define a precursor superconducting state that is different than the pseudogap. The temperature range and the observed superconducting condensate in this state can be explained with the help of the inhomogeneous superconducting state.

ISBN: 9784431555100 (electronic bk.)

Standard No.: 10.1007/978-4-431-55510-0doiSubjects--Topical Terms:

650221
High temperature superconductivity.

LC Class. No.: QC611.98.H54

Dewey Class. No.: 537.623

Pseudogap and precursor superconductivity study of Zn doped YBCO
LDR:03345nmm a2200337 a 4500 001 1995485
003 DE-He213
005 20150922162649.0
006 m d
007 cr nn 008maaau
008 151019s2015 ja s 0 eng d
020 $a 9784431555100 (electronic bk.)
020 $a 9784431555094 (paper)
024 7 $a 10.1007/978-4-431-55510-0 $2 doi
035 $a 978-4-431-55510-0
040 $a GP $c GP
041 0 $a eng
050 4 $a QC611.98.H54
072 7 $a TJFD5 $2 bicssc
072 7 $a TEC039000 $2 bisacsh
072 7 $a SCI021000 $2 bisacsh
082 0 4 $a 537.623 $2 23
090 $a QC611.98.H54 $b U97 2015
100 1 $a Uykur, Ece. $3 2134998
245 1 0 $a Pseudogap and precursor superconductivity study of Zn doped YBCO $h [electronic resource] / $c by Ece Uykur.
260 $a Tokyo : $b Springer Japan : $b Imprint: Springer, $c 2015.
300 $a xiii, 93 p. : $b ill. (some col.), digital ; $c 24 cm.
490 1 $a Springer theses, $x 2190-5053
505 0 $a Introduction -- High Temperature Cuprate Superconductors -- Experimental Procedure -- Results and Discussion -- Conclusion.
520 $a In this thesis, the pseudogap and the precursor superconducting state, which are of great importance in clarifying the superconductivity mechanism in high-temperature cuprate superconductors, are investigated with a c-axis optical study in YBa2(Cu1-xZnx)3Oy. Testing was performed over a wide energy range with smaller temperature intervals for several Zn-substituted samples, as well as for several carrier-doping levels. A spectral weight (SW) analysis, in which the pseudogap behavior can be separated from the superconducting condensate with the SW transfer to the high-energy region, revealed that the pseudogap is not the precursor of the superconductivity (carriers moving to the high-energy region with pseudogap opening never contribute to the superconducting condensation). Moreover, the high-energy transfer continues even below Tc for the Zn-substituted samples (in which we weaken the superconductivity), which gives evidence to the coexistence of the pseudogap and the superconducting gap below Tc. On the other hand, the analysis of optical conductivity revealed that a precursor state to superconductivity can be defined at temperatures much higher than Tc. The superconducting carrier density (ns) was calculated for each temperature (above and below Tc) and the results confirmed the existence of ns at temperatures above Tc. The observed real superconducting condensate (ns) above Tc puts a serious constraint on the theory for high- Tc superconductivity. A theory based on an inhomogeneous superconducting state, in which a microscopically phase-separated state in a doped Mott insulator can be observed, is the most plausible candidate. This theory can explain the existence of ns and the observed temperature range for the precursor superconducting state. The results obtained show that the pseudogap coexists with superconductivity below Tc and is not the precursor of superconductivity. On the other hand, it is also possible to define a precursor superconducting state that is different than the pseudogap. The temperature range and the observed superconducting condensate in this state can be explained with the help of the inhomogeneous superconducting state.
650 0 $a High temperature superconductivity. $3 650221
650 0 $a Semiconductor doping. $3 601056
650 1 4 $a Physics. $3 516296
650 2 4 $a Strongly Correlated Systems, Superconductivity. $3 1067082
650 2 4 $a Low Temperature Physics. $3 1244627
650 2 4 $a Magnetism, Magnetic Materials. $3 893994
650 2 4 $a Solid State Physics. $3 1066374
650 2 4 $a Mathematical Methods in Physics. $3 890898
710 2 $a SpringerLink (Online service) $3 836513
773 0 $t Springer eBooks
830 0 $a Springer theses. $3 1314442
856 4 0 $u http://dx.doi.org/10.1007/978-4-431-55510-0
950 $a Physics and Astronomy (Springer-11651)