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Synthesis, Characterization, and Sca...

Parzyck, Christopher Thomas,

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Synthesis, Characterization, and Scattering Measurements of the Perovskite and Infinite Layer Nickelates /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Synthesis, Characterization, and Scattering Measurements of the Perovskite and Infinite Layer Nickelates // Christopher Thomas Parzyck.
Author:	Parzyck, Christopher Thomas,
Description:	1 electronic resource (228 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-07, Section: B.
Contained By:	Dissertations Abstracts International85-07B.
Subject:	Condensed matter physics. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30638773
ISBN:	9798381413076

Synthesis, Characterization, and Scattering Measurements of the Perovskite and Infinite Layer Nickelates /
Parzyck, Christopher Thomas,

Synthesis, Characterization, and Scattering Measurements of the Perovskite and Infinite Layer Nickelates /Christopher Thomas Parzyck. - 1 electronic resource (228 pages)

Source: Dissertations Abstracts International, Volume: 85-07, Section: B.

Materials hosting unconventional and high Tc superconductivity demonstrate phase diagrams of extreme complexity where superconductivity cooperates and competes with other ground states involving entangled charge, lattice, and spin degrees of freedom. Joining the Fe-based and Cubased families of superconductors, the newly realized infinite layer nickelates, RENiO2, RE=La, Nd, Pr, offer a novel platform to study the nature of high Tc superconductivity and the normal state from which it emerges. However, this class of materials poses significant synthesis challenges which must be overcome to investigate their intrinsic ground state properties. In this thesis we discuss the synthesis of perovskite and infinite layer nickelates by reactive oxide molecular-beam epitaxy and activated hydrogen reduction. First, we examine the growth of the perovskite nickelate NdNiO3 by ozone assisted molecular-beam epitaxy and describe a novel reduction procedure, using atomic hydrogen, for transforming the perovskite to the infinite layer phase. We illustrate the utility of atomic hydrogen reduction for producing highly crystalline undoped NdNiO2 by a variety of experimental probes. Second, we explore the properties of high quality NdNiO3 thin films in the ultrathin limit, revealing a previously undetected thickness driven structural transformation and suppression of the metal-to-insulator transition in films under tensile strain. Finally, we re-examine the presence of charge density wave order in NdNiO2, arguing that the previously reported 3a0 ordering can be attributed to interstitial oxygen ordering rather than a correlation driven density wave. These results serve to clarify some of the essential features of the phase diagrams of both the perovskite and infinite layer nickelates.

English

ISBN: 9798381413076Subjects--Topical Terms:

3173567
Condensed matter physics.
Subjects--Index Terms:

ARPES

Synthesis, Characterization, and Scattering Measurements of the Perovskite and Infinite Layer Nickelates /
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100 1 $a Parzyck, Christopher Thomas, $e author. $0 (orcid)0000-0002-3835-7115 $3 3823893
245 1 0 $a Synthesis, Characterization, and Scattering Measurements of the Perovskite and Infinite Layer Nickelates / $c Christopher Thomas Parzyck.
264 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2023
300 $a 1 electronic resource (228 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: 85-07, Section: B.
500 $a Advisors: Shen, Kyle Committee members: Arias, Tomas; Ralph, Daniel.
502 $b Ph.D. $c Cornell University $d 2023.
520 $a Materials hosting unconventional and high Tc superconductivity demonstrate phase diagrams of extreme complexity where superconductivity cooperates and competes with other ground states involving entangled charge, lattice, and spin degrees of freedom. Joining the Fe-based and Cubased families of superconductors, the newly realized infinite layer nickelates, RENiO2, RE=La, Nd, Pr, offer a novel platform to study the nature of high Tc superconductivity and the normal state from which it emerges. However, this class of materials poses significant synthesis challenges which must be overcome to investigate their intrinsic ground state properties. In this thesis we discuss the synthesis of perovskite and infinite layer nickelates by reactive oxide molecular-beam epitaxy and activated hydrogen reduction. First, we examine the growth of the perovskite nickelate NdNiO3 by ozone assisted molecular-beam epitaxy and describe a novel reduction procedure, using atomic hydrogen, for transforming the perovskite to the infinite layer phase. We illustrate the utility of atomic hydrogen reduction for producing highly crystalline undoped NdNiO2 by a variety of experimental probes. Second, we explore the properties of high quality NdNiO3 thin films in the ultrathin limit, revealing a previously undetected thickness driven structural transformation and suppression of the metal-to-insulator transition in films under tensile strain. Finally, we re-examine the presence of charge density wave order in NdNiO2, arguing that the previously reported 3a0 ordering can be attributed to interstitial oxygen ordering rather than a correlation driven density wave. These results serve to clarify some of the essential features of the phase diagrams of both the perovskite and infinite layer nickelates.
546 $a English
590 $a School code: 0058
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Materials science. $3 543314
650 4 $a Physics. $3 516296
653 $a ARPES
653 $a Charge order
653 $a Molecular-beam epitaxy
653 $a Nickelates
653 $a X-ray scattering
690 $a 0611
690 $a 0794
690 $a 0605
710 2 $a Cornell University. $b Physics. $e degree granting institution. $3 3823894
720 1 $a Shen, Kyle $e degree supervisor.
773 0 $t Dissertations Abstracts International $g 85-07B.
790 $a 0058
791 $a Ph.D.
792 $a 2023
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=30638773