Hem Raj Sharma, Peter John Nugent, Sam Coates, Ronan McGrath
{"title":"准晶锑薄膜","authors":"Hem Raj Sharma, Peter John Nugent, Sam Coates, Ronan McGrath","doi":"10.1002/ijch.202300135","DOIUrl":null,"url":null,"abstract":"<h2> Introduction</h2>\n<p>The discovery of the thermally stable binary icosahedral <i>(i)</i> Cd−Yb<span><sup>1</sup></span> quasicrystal opened up a new area of research in the field of aperiodic materials. Unlike other common quasicrystals, which largely consist of three elements and are based on Al, the <i>i</i>-Cd−Yb quasicrystal is composed of only two elements, allowing for a complete structural determination to be made.<span><sup>2</sup></span> This material is constructed from an aperiodic array of Rhombic Triacontrahedral (RTH) clusters with adjoining glue atoms, which gives it a different structure than the Al-based quasicrystals, whose building blocks are Mackay and Bergman clusters.<span><sup>3</sup></span></p>\n<p>However, Cd−Yb is not suitable for surface studies under ultra-high vacuum (UHV) conditions due to the high vapor pressure of Cd. By replacing Cd with Ag and In, it has been possible to grow the isostructural Ag−In−Yb quasicrystal in a large single grain with high structural quality,<span><sup>4</sup></span> enabling UHV surface studies of this phase.<span><sup>5-9</sup></span> It has been shown that all three high symmetry surfaces of <i>i-</i>Ag−In−Yb form at bulk planes that intersect the RTH cluster centers.<span><sup>5, 8, 9</sup></span></p>\n<p>The search for aperiodic structures that possess less chemical complexity than the bulk quasicrystals has led to the discovery of novel epitaxial structures.<span><sup>10, 11</sup></span> These structures include noble metal films with fivefold-twinned structure,<span><sup>10</sup></span> magic height Bi and Ag films influenced by quantum size effects,<span><sup>12-14</sup></span> and quasiperiodically modulated multilayer Cu structures.<span><sup>15-17</sup></span> Furthermore, it has been found that the quasicrystalline structure of the substrate can be transmitted to a film of a single element. The quasicrystalline structure is not only limited to a monolayer but may extend up to a few atomic layers of the film. The observed quasicrystalline monolayers include Bi,<span><sup>18, 19</sup></span> Sb,<span><sup>18</sup></span> Sn,<span><sup>20</sup></span> and Pb<span><sup>21, 22</sup></span> on various Al-based quasicrystals. A multilayer quasicrystalline structure has been observed in Pb deposited on <i>i-</i>Ag−In−Yb,<span><sup>23</sup></span> Sn deposited on <i>i-</i>Al−Pd−Mn<span><sup>24</sup></span> and Na on <i>i-</i>Al−Pd−Mn.<span><sup>25</sup></span> There has been a theoretical prediction of a quasicrystalline bilayer with a sparse second layer of alkaline metals on <i>i-</i>Al−Pd−Mn,<span><sup>26</sup></span> but such a structure has not been experimentally realized.</p>\n<p>In this paper we present scanning tunneling microscopy (STM) and x-ray photoelectron spectroscopy (XPS) studies of Sb thin film growth on the fivefold <i>i-</i>Ag−In−Yb surface. Antimony was chosen to examine the possibility of pseudomorphic growth on <i>i-</i>Ag−In−Yb because of the following reasons: Sb has a similar atomic size to Sn and is also in the same periodic group as Bi, possessing a similar electronic configuration, and previously these three elements Sn,<span><sup>20</sup></span> Bi,<span><sup>18, 19</sup></span> and Sb<span><sup>18</sup></span> were successfully grown in a quasicrystalline monolayer on the Al-based quasicrystals. Another element Pb, which is next to Bi and in the same column as Sn in the periodic table, also yields a quasicrystalline monolayer on the Al-based quasicrystal<span><sup>21, 22</sup></span> and a quasicrystalline multilayer on <i>i-</i>Ag−In−Yb.<span><sup>23</sup></span> All these four elements have low surface free energy. The choice of Sb was also motivated by a consideration that the covalent bonding between Sb and the substrate In may induce a quasicrystalline structure in the adlayer.</p>","PeriodicalId":14686,"journal":{"name":"Israel Journal of Chemistry","volume":null,"pages":null},"PeriodicalIF":2.3000,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Quasicrystalline Antimony Thin Films\",\"authors\":\"Hem Raj Sharma, Peter John Nugent, Sam Coates, Ronan McGrath\",\"doi\":\"10.1002/ijch.202300135\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<h2> Introduction</h2>\\n<p>The discovery of the thermally stable binary icosahedral <i>(i)</i> Cd−Yb<span><sup>1</sup></span> quasicrystal opened up a new area of research in the field of aperiodic materials. Unlike other common quasicrystals, which largely consist of three elements and are based on Al, the <i>i</i>-Cd−Yb quasicrystal is composed of only two elements, allowing for a complete structural determination to be made.<span><sup>2</sup></span> This material is constructed from an aperiodic array of Rhombic Triacontrahedral (RTH) clusters with adjoining glue atoms, which gives it a different structure than the Al-based quasicrystals, whose building blocks are Mackay and Bergman clusters.<span><sup>3</sup></span></p>\\n<p>However, Cd−Yb is not suitable for surface studies under ultra-high vacuum (UHV) conditions due to the high vapor pressure of Cd. By replacing Cd with Ag and In, it has been possible to grow the isostructural Ag−In−Yb quasicrystal in a large single grain with high structural quality,<span><sup>4</sup></span> enabling UHV surface studies of this phase.<span><sup>5-9</sup></span> It has been shown that all three high symmetry surfaces of <i>i-</i>Ag−In−Yb form at bulk planes that intersect the RTH cluster centers.<span><sup>5, 8, 9</sup></span></p>\\n<p>The search for aperiodic structures that possess less chemical complexity than the bulk quasicrystals has led to the discovery of novel epitaxial structures.<span><sup>10, 11</sup></span> These structures include noble metal films with fivefold-twinned structure,<span><sup>10</sup></span> magic height Bi and Ag films influenced by quantum size effects,<span><sup>12-14</sup></span> and quasiperiodically modulated multilayer Cu structures.<span><sup>15-17</sup></span> Furthermore, it has been found that the quasicrystalline structure of the substrate can be transmitted to a film of a single element. The quasicrystalline structure is not only limited to a monolayer but may extend up to a few atomic layers of the film. The observed quasicrystalline monolayers include Bi,<span><sup>18, 19</sup></span> Sb,<span><sup>18</sup></span> Sn,<span><sup>20</sup></span> and Pb<span><sup>21, 22</sup></span> on various Al-based quasicrystals. A multilayer quasicrystalline structure has been observed in Pb deposited on <i>i-</i>Ag−In−Yb,<span><sup>23</sup></span> Sn deposited on <i>i-</i>Al−Pd−Mn<span><sup>24</sup></span> and Na on <i>i-</i>Al−Pd−Mn.<span><sup>25</sup></span> There has been a theoretical prediction of a quasicrystalline bilayer with a sparse second layer of alkaline metals on <i>i-</i>Al−Pd−Mn,<span><sup>26</sup></span> but such a structure has not been experimentally realized.</p>\\n<p>In this paper we present scanning tunneling microscopy (STM) and x-ray photoelectron spectroscopy (XPS) studies of Sb thin film growth on the fivefold <i>i-</i>Ag−In−Yb surface. Antimony was chosen to examine the possibility of pseudomorphic growth on <i>i-</i>Ag−In−Yb because of the following reasons: Sb has a similar atomic size to Sn and is also in the same periodic group as Bi, possessing a similar electronic configuration, and previously these three elements Sn,<span><sup>20</sup></span> Bi,<span><sup>18, 19</sup></span> and Sb<span><sup>18</sup></span> were successfully grown in a quasicrystalline monolayer on the Al-based quasicrystals. Another element Pb, which is next to Bi and in the same column as Sn in the periodic table, also yields a quasicrystalline monolayer on the Al-based quasicrystal<span><sup>21, 22</sup></span> and a quasicrystalline multilayer on <i>i-</i>Ag−In−Yb.<span><sup>23</sup></span> All these four elements have low surface free energy. The choice of Sb was also motivated by a consideration that the covalent bonding between Sb and the substrate In may induce a quasicrystalline structure in the adlayer.</p>\",\"PeriodicalId\":14686,\"journal\":{\"name\":\"Israel Journal of Chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":2.3000,\"publicationDate\":\"2023-11-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Israel Journal of Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://doi.org/10.1002/ijch.202300135\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q3\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Israel Journal of Chemistry","FirstCategoryId":"92","ListUrlMain":"https://doi.org/10.1002/ijch.202300135","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
The discovery of the thermally stable binary icosahedral (i) Cd−Yb1 quasicrystal opened up a new area of research in the field of aperiodic materials. Unlike other common quasicrystals, which largely consist of three elements and are based on Al, the i-Cd−Yb quasicrystal is composed of only two elements, allowing for a complete structural determination to be made.2 This material is constructed from an aperiodic array of Rhombic Triacontrahedral (RTH) clusters with adjoining glue atoms, which gives it a different structure than the Al-based quasicrystals, whose building blocks are Mackay and Bergman clusters.3
However, Cd−Yb is not suitable for surface studies under ultra-high vacuum (UHV) conditions due to the high vapor pressure of Cd. By replacing Cd with Ag and In, it has been possible to grow the isostructural Ag−In−Yb quasicrystal in a large single grain with high structural quality,4 enabling UHV surface studies of this phase.5-9 It has been shown that all three high symmetry surfaces of i-Ag−In−Yb form at bulk planes that intersect the RTH cluster centers.5, 8, 9
The search for aperiodic structures that possess less chemical complexity than the bulk quasicrystals has led to the discovery of novel epitaxial structures.10, 11 These structures include noble metal films with fivefold-twinned structure,10 magic height Bi and Ag films influenced by quantum size effects,12-14 and quasiperiodically modulated multilayer Cu structures.15-17 Furthermore, it has been found that the quasicrystalline structure of the substrate can be transmitted to a film of a single element. The quasicrystalline structure is not only limited to a monolayer but may extend up to a few atomic layers of the film. The observed quasicrystalline monolayers include Bi,18, 19 Sb,18 Sn,20 and Pb21, 22 on various Al-based quasicrystals. A multilayer quasicrystalline structure has been observed in Pb deposited on i-Ag−In−Yb,23 Sn deposited on i-Al−Pd−Mn24 and Na on i-Al−Pd−Mn.25 There has been a theoretical prediction of a quasicrystalline bilayer with a sparse second layer of alkaline metals on i-Al−Pd−Mn,26 but such a structure has not been experimentally realized.
In this paper we present scanning tunneling microscopy (STM) and x-ray photoelectron spectroscopy (XPS) studies of Sb thin film growth on the fivefold i-Ag−In−Yb surface. Antimony was chosen to examine the possibility of pseudomorphic growth on i-Ag−In−Yb because of the following reasons: Sb has a similar atomic size to Sn and is also in the same periodic group as Bi, possessing a similar electronic configuration, and previously these three elements Sn,20 Bi,18, 19 and Sb18 were successfully grown in a quasicrystalline monolayer on the Al-based quasicrystals. Another element Pb, which is next to Bi and in the same column as Sn in the periodic table, also yields a quasicrystalline monolayer on the Al-based quasicrystal21, 22 and a quasicrystalline multilayer on i-Ag−In−Yb.23 All these four elements have low surface free energy. The choice of Sb was also motivated by a consideration that the covalent bonding between Sb and the substrate In may induce a quasicrystalline structure in the adlayer.
期刊介绍:
The fledgling State of Israel began to publish its scientific activity in 1951 under the general heading of Bulletin of the Research Council of Israel, which quickly split into sections to accommodate various fields in the growing academic community. In 1963, the Bulletin ceased publication and independent journals were born, with Section A becoming the new Israel Journal of Chemistry.
The Israel Journal of Chemistry is the official journal of the Israel Chemical Society. Effective from Volume 50 (2010) it is published by Wiley-VCH.
The Israel Journal of Chemistry is an international and peer-reviewed publication forum for Special Issues on timely research topics in all fields of chemistry: from biochemistry through organic and inorganic chemistry to polymer, physical and theoretical chemistry, including all interdisciplinary topics. Each topical issue is edited by one or several Guest Editors and primarily contains invited Review articles. Communications and Full Papers may be published occasionally, if they fit with the quality standards of the journal. The publication language is English and the journal is published twelve times a year.