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

Nuclear Magnetic Resonance Studies o...

Wiecki, Paul Waymouth.

FindBook

Google Book

Amazon

博客來

Nuclear Magnetic Resonance Studies of Magnetic Fluctuations and Nematic Order in Iron-based Superconductors.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Nuclear Magnetic Resonance Studies of Magnetic Fluctuations and Nematic Order in Iron-based Superconductors./
作者:	Wiecki, Paul Waymouth.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	204 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
Contained By:	Dissertation Abstracts International79-11B(E).
標題:	Condensed matter physics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10752362
ISBN:	9780438076808

Nuclear Magnetic Resonance Studies of Magnetic Fluctuations and Nematic Order in Iron-based Superconductors.
Wiecki, Paul Waymouth.

Nuclear Magnetic Resonance Studies of Magnetic Fluctuations and Nematic Order in Iron-based Superconductors. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 204 p.

Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.

Thesis (Ph.D.)--Iowa State University, 2018.

This thesis illustrates the use of the nuclear magnetic resonance (NMR) technique as a local probe for the study of static and dynamic magnetism in the iron-based superconductors.

ISBN: 9780438076808Subjects--Topical Terms:

3173567
Condensed matter physics.

Nuclear Magnetic Resonance Studies of Magnetic Fluctuations and Nematic Order in Iron-based Superconductors.
LDR:03040nmm a2200325 4500 001 2161933
005 20181002081326.5
008 190424s2018 ||||||||||||||||| ||eng d
020 $a 9780438076808
035 $a (MiAaPQ)AAI10752362
035 $a (MiAaPQ)iastate:17158
035 $a AAI10752362
040 $a MiAaPQ $c MiAaPQ
100 1 $a Wiecki, Paul Waymouth. $3 3349901
245 1 0 $a Nuclear Magnetic Resonance Studies of Magnetic Fluctuations and Nematic Order in Iron-based Superconductors.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2018
300 $a 204 p.
500 $a Source: Dissertation Abstracts International, Volume: 79-11(E), Section: B.
500 $a Adviser: Yuji Furukawa.
502 $a Thesis (Ph.D.)--Iowa State University, 2018.
520 $a This thesis illustrates the use of the nuclear magnetic resonance (NMR) technique as a local probe for the study of static and dynamic magnetism in the iron-based superconductors.
520 $a First, a Korringa ratio analysis of 59Co and 75 As NMR data reveals the existence of ferromagnetic (FM) spin fluctuations in SrCo2As2 and the hole- and electron-doped BaFe 2As2 families of iron-pnictide superconductors. The analysis further shows that the FM fluctuations compete with AFM fluctuations to suppress superconductivity in these materials. The FM fluctuations are thus a crucial ingredient to understanding the variability of the superconducting transition temperature (Tc) and the shape of the superconducting dome in these and other iron-pnictide families.
520 $a Secondly, a study of KFe2As2 under pressures up to 2.1 GPa reveals a crossover between a high-temperature incoherent, local-moment behavior and a low-temperature coherent behavior at a crossover temperature, T*. The T* is found to increase monotonically with pressure, consistent with increasing hybridization between localized 3d orbital-derived bands with the itinerant electron bands. No anomaly in T* is seen at the critical pressure where a change of slope of Tc(p) has been observed. In the superconducting state, two-component nuclear spin-lattice relaxation is observed at low temperatures, suggesting the existence of two distinct local electronic environments.
520 $a Finally, 77Se-NMR studies of FeSe subjected to external pressure and sulfur doping are presented. In pure FeSe under pressure, the NMR spectra reveal the existence of a short-range, local nematic ordered state above the bulk nematic ordering temperature. Furthermore, this local nematic order does not compete with low-energy AFM spin fluctuations. In sulfur-doped FeSe1--xSx, the observed behavior of the magnetic fluctuations parallels the Tc, providing strong evidence for the primary importance of magnetic fluctuations for superconductivity, despite the presence of nematic quantum criticality in this system.
590 $a School code: 0097.
650 4 $a Condensed matter physics. $3 3173567
690 $a 0611
710 2 $a Iowa State University. $b Physics and Astronomy. $3 1669197
773 0 $t Dissertation Abstracts International $g 79-11B(E).
790 $a 0097
791 $a Ph.D.
792 $a 2018
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10752362