東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Synthesis and Strongly Correlated Ph...

Jia, Yanyu,

Linked to FindBook

Google Book

Amazon

博客來

Synthesis and Strongly Correlated Physics of Two-Dimensional Quantum Materials /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Synthesis and Strongly Correlated Physics of Two-Dimensional Quantum Materials // Yanyu Jia.
Author:	Jia, Yanyu,
Description:	1 electronic resource (167 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-08, Section: B.
Contained By:	Dissertations Abstracts International86-08B.
Subject:	Physics. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31639846
ISBN:	9798302882356

Synthesis and Strongly Correlated Physics of Two-Dimensional Quantum Materials /
Jia, Yanyu,

Synthesis and Strongly Correlated Physics of Two-Dimensional Quantum Materials /Yanyu Jia. - 1 electronic resource (167 pages)

Source: Dissertations Abstracts International, Volume: 86-08, Section: B.

Advancements in two-dimensional (2D) quantum materials have driven significant progress in various fields including electronic devices, optics, and quantum technologies. Among these, 2D transition metal dichalcogenides (TMDs) are especially intriguing due to their diverse quantum phases. Investigating these phases is essential for understanding fundamental quantum physics and developing future applications. In addition, exploring the interplay between these interesting states is highly desirable but remains challenging. In this thesis, we present our works on studying strongly correlated phases in 2D materials and developing new approaches to engineering quantum phases on demand within a single device.We first investigate monolayer tungsten ditelluride (WTe2), which exhibits multiple quantum phases, including the quantum spin Hall insulator (QSHI) and superconductor. We provide experimental evidence revealing the excitonic nature of its QSHI state, identifying monolayer WTe2 as the first topological excitonic insulator. This work establishes a material platform for future research into correlated insulators with nontrivial topology.Following our WTe2 studies, we discover another surprising phenomenon unique to 2D materials: a rapid, long-distance, non-Fickian mass transport of atomically thin metals on monolayer crystals at low temperatures. This process produces highly crystalline new 2D materials, further expanding the 2D material family. This discovery offers unique opportunities for engineering different phases within a single 2D device. Specifically, a class of non-superconducting 2D topological TMDs can be transformed into superconductors through this process. Moreover, the spatial interfaces between the original materials and the newly formed superconductors are atomically sharp and clean, providing a promising platform for studying the interplay between superconductivity and other intriguing phases intrinsic to 2D topological TMDs.As an example, we create superconducting junction in twisted bilayer MoTe2, which hosts fractional Chern insulator (FCI). The interplay between FCI and superconductivity could, in principle, realize new fractionalized electronic states that are important for creating topological qubits. In these junctions, we observe multiple anomalous superconducting behaviors contradicting conventional superconducting junctions.Our experiments not only reveal the rich quantum phases in 2D materials but also provide a novel route for creating a new class of quantum materials, enabling the investigation of intriguing physics at interfaces between distinct quantum phases.

English

ISBN: 9798302882356Subjects--Topical Terms:

516296
Physics.
Subjects--Index Terms:

2D materials

Synthesis and Strongly Correlated Physics of Two-Dimensional Quantum Materials /
LDR:04098nmm a22004453i 4500 001 2433752
005 20250905091005.5
006 m o d
007 cr|nu||||||||
008 261011s2025 miu||||||m |||||||eng d
020 $a 9798302882356
035 $a (MiAaPQD)AAI31639846
035 $a AAI31639846
040 $a MiAaPQD $b eng $c MiAaPQD $e rda
100 1 $a Jia, Yanyu, $e author. $0 (orcid)0000-0001-6061-8441 $3 3823494
245 1 0 $a Synthesis and Strongly Correlated Physics of Two-Dimensional Quantum Materials / $c Yanyu Jia.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2025
300 $a 1 electronic resource (167 pages)
336 $a text $b txt $2 rdacontent
337 $a computer $b c $2 rdamedia
338 $a online resource $b cr $2 rdacarrier
500 $a Source: Dissertations Abstracts International, Volume: 86-08, Section: B.
500 $a Advisors: Wu, Sanfeng Committee members: Schoop, Leslie M.; Lian, Biao.
502 $b Ph.D. $c Princeton University $d 2025.
520 $a Advancements in two-dimensional (2D) quantum materials have driven significant progress in various fields including electronic devices, optics, and quantum technologies. Among these, 2D transition metal dichalcogenides (TMDs) are especially intriguing due to their diverse quantum phases. Investigating these phases is essential for understanding fundamental quantum physics and developing future applications. In addition, exploring the interplay between these interesting states is highly desirable but remains challenging. In this thesis, we present our works on studying strongly correlated phases in 2D materials and developing new approaches to engineering quantum phases on demand within a single device.We first investigate monolayer tungsten ditelluride (WTe2), which exhibits multiple quantum phases, including the quantum spin Hall insulator (QSHI) and superconductor. We provide experimental evidence revealing the excitonic nature of its QSHI state, identifying monolayer WTe2 as the first topological excitonic insulator. This work establishes a material platform for future research into correlated insulators with nontrivial topology.Following our WTe2 studies, we discover another surprising phenomenon unique to 2D materials: a rapid, long-distance, non-Fickian mass transport of atomically thin metals on monolayer crystals at low temperatures. This process produces highly crystalline new 2D materials, further expanding the 2D material family. This discovery offers unique opportunities for engineering different phases within a single 2D device. Specifically, a class of non-superconducting 2D topological TMDs can be transformed into superconductors through this process. Moreover, the spatial interfaces between the original materials and the newly formed superconductors are atomically sharp and clean, providing a promising platform for studying the interplay between superconductivity and other intriguing phases intrinsic to 2D topological TMDs.As an example, we create superconducting junction in twisted bilayer MoTe2, which hosts fractional Chern insulator (FCI). The interplay between FCI and superconductivity could, in principle, realize new fractionalized electronic states that are important for creating topological qubits. In these junctions, we observe multiple anomalous superconducting behaviors contradicting conventional superconducting junctions.Our experiments not only reveal the rich quantum phases in 2D materials but also provide a novel route for creating a new class of quantum materials, enabling the investigation of intriguing physics at interfaces between distinct quantum phases.
546 $a English
590 $a School code: 0181
650 4 $a Physics. $3 516296
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Quantum physics. $3 726746
650 4 $a Nanotechnology. $3 526235
653 $a 2D materials
653 $a Strongly correlated physics
653 $a Superconductivity
653 $a Topological insulator
653 $a Transition metal dichalcogenides
690 $a 0605
690 $a 0611
690 $a 0599
690 $a 0652
710 2 $a Princeton University. $b Physics. $e degree granting institution. $3 3823495
720 1 $a Wu, Sanfeng $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 86-08B.
790 $a 0181
791 $a Ph.D.
792 $a 2025
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31639846