AFM investigation of step kinetics and hillock morphology of the {1 0 0} face of KDP
Step velocities and hillock slopes on the {1 0 0} face of KDP were measured over a supersaturation range of 0< σ
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| Veröffentlicht in: | Journal of crystal growth 2004-01, Vol.260 (3), p.566-579 |
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| container_issue | 3 |
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| container_title | Journal of crystal growth |
| container_volume | 260 |
| creator | Thomas, T.N. Land, T.A. Martin, T. Casey, W.H. DeYoreo, J.J. |
| description | Step velocities and hillock slopes on the {1
0
0} face of KDP were measured over a supersaturation range of 0<
σ |
| doi_str_mv | 10.1016/j.jcrysgro.2003.08.054 |
| format | Article |
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0
0} face of KDP were measured over a supersaturation range of 0<
σ<0.15, where
σ is the supersaturation. The formation of macrosteps and their evolution with distance from the hillock top were also observed. Hillock slope depended linearly on supersaturation and hillock geometry. The two non-equivalent sectors exhibited different slopes and step velocities. AFM shows an elementary step height of 3.7
Å, or half the unit cell height, whereas previous interferometric experiments assumed the elementary step was a unit cell. Values of the step edge energy (
α), the kinetic coefficients for the slow and fast directions (
β
S and
β
F), and the activation energies for slow and fast step motion (
E
a,S and
E
a,F) were calculated to be 24.0
erg/cm
2, 0.071
cm/s, 0.206
cm/s, 0.26
eV/molecule, and 0.21
eV/molecule, respectively. Analysis of macrostep evolution including the dependence of step height on time and terrace width on distance were performed and compared to predictions of published models. The results do not allow us to distinguish between a shock wave model and a continuous step-doubling model. Analysis within the latter model leads to a characteristic adsorption time for impurities (
λ
−1) of 0.0716
s.</description><identifier>ISSN: 0022-0248</identifier><identifier>EISSN: 1873-5002</identifier><identifier>DOI: 10.1016/j.jcrysgro.2003.08.054</identifier><identifier>CODEN: JCRGAE</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>A1. Atomic force microscopy ; A1. Characterization ; A1. Crystal morphology ; A1. Supersaturated solutions ; B1. Phosphates ; Condensed matter: electronic structure, electrical, magnetic, and optical properties ; Condensed matter: structure, mechanical and thermal properties ; Dielectric, piezoelectric, ferroelectric and antiferroelectric materials ; Dielectrics, piezoelectrics, and ferroelectrics and their properties ; Electron, ion, and scanning probe microscopy ; Exact sciences and technology ; Kdp- and tgs-type crystals ; Physics ; Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc ; Structure of solids and liquids; crystallography</subject><ispartof>Journal of crystal growth, 2004-01, Vol.260 (3), p.566-579</ispartof><rights>2003 Elsevier B.V.</rights><rights>2004 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c371t-a2ca9b4ee4985e4db279af4055c91ab207d9ca6f9b8e0eb97b03a7950d20c0913</citedby><cites>FETCH-LOGICAL-c371t-a2ca9b4ee4985e4db279af4055c91ab207d9ca6f9b8e0eb97b03a7950d20c0913</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jcrysgro.2003.08.054$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=15349068$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Thomas, T.N.</creatorcontrib><creatorcontrib>Land, T.A.</creatorcontrib><creatorcontrib>Martin, T.</creatorcontrib><creatorcontrib>Casey, W.H.</creatorcontrib><creatorcontrib>DeYoreo, J.J.</creatorcontrib><title>AFM investigation of step kinetics and hillock morphology of the {1 0 0} face of KDP</title><title>Journal of crystal growth</title><description>Step velocities and hillock slopes on the {1
0
0} face of KDP were measured over a supersaturation range of 0<
σ<0.15, where
σ is the supersaturation. The formation of macrosteps and their evolution with distance from the hillock top were also observed. Hillock slope depended linearly on supersaturation and hillock geometry. The two non-equivalent sectors exhibited different slopes and step velocities. AFM shows an elementary step height of 3.7
Å, or half the unit cell height, whereas previous interferometric experiments assumed the elementary step was a unit cell. Values of the step edge energy (
α), the kinetic coefficients for the slow and fast directions (
β
S and
β
F), and the activation energies for slow and fast step motion (
E
a,S and
E
a,F) were calculated to be 24.0
erg/cm
2, 0.071
cm/s, 0.206
cm/s, 0.26
eV/molecule, and 0.21
eV/molecule, respectively. Analysis of macrostep evolution including the dependence of step height on time and terrace width on distance were performed and compared to predictions of published models. The results do not allow us to distinguish between a shock wave model and a continuous step-doubling model. Analysis within the latter model leads to a characteristic adsorption time for impurities (
λ
−1) of 0.0716
s.</description><subject>A1. Atomic force microscopy</subject><subject>A1. Characterization</subject><subject>A1. Crystal morphology</subject><subject>A1. Supersaturated solutions</subject><subject>B1. Phosphates</subject><subject>Condensed matter: electronic structure, electrical, magnetic, and optical properties</subject><subject>Condensed matter: structure, mechanical and thermal properties</subject><subject>Dielectric, piezoelectric, ferroelectric and antiferroelectric materials</subject><subject>Dielectrics, piezoelectrics, and ferroelectrics and their properties</subject><subject>Electron, ion, and scanning probe microscopy</subject><subject>Exact sciences and technology</subject><subject>Kdp- and tgs-type crystals</subject><subject>Physics</subject><subject>Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc</subject><subject>Structure of solids and liquids; crystallography</subject><issn>0022-0248</issn><issn>1873-5002</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><recordid>eNqFkM1OwzAQhC0EEqXwCsgXuCWsnV_fqAoFRBEcytlynE3rNo2LnVaqEO9OooI4ctmVVt_saIaQSwYhA5beLMOldns_dzbkAFEIeQhJfEQGLM-iIAHgx2TQTR4Aj_NTcub9EqBTMhiQ2WjyQk2zQ9-auWqNbaitqG9xQ1emwdZoT1VT0oWpa6tXdG3dZmFrO9_3XLtA-skoUPiildLY357v3s7JSaVqjxc_e0jeJ_ez8WMwfX14Go-mgY4y1gaKayWKGDEWeYJxWfBMqCqGJNGCqYJDVgqt0koUOQIWIisgUplIoOSgQbBoSK4PfzfOfmy7CHJtvMa6Vg3arZdc8JSLDDowPYDaWe8dVnLjzFq5vWQg-xLlUv6WKPsSJeSyK7ETXv04KK9VXTnVaOP_1EkUC0jzjrs9cNjF3Rl00muDjcbSONStLK35z-obRlWKoQ</recordid><startdate>20040101</startdate><enddate>20040101</enddate><creator>Thomas, T.N.</creator><creator>Land, T.A.</creator><creator>Martin, T.</creator><creator>Casey, W.H.</creator><creator>DeYoreo, J.J.</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><scope>L7M</scope></search><sort><creationdate>20040101</creationdate><title>AFM investigation of step kinetics and hillock morphology of the {1 0 0} face of KDP</title><author>Thomas, T.N. ; Land, T.A. ; Martin, T. ; Casey, W.H. ; DeYoreo, J.J.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c371t-a2ca9b4ee4985e4db279af4055c91ab207d9ca6f9b8e0eb97b03a7950d20c0913</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2004</creationdate><topic>A1. Atomic force microscopy</topic><topic>A1. Characterization</topic><topic>A1. Crystal morphology</topic><topic>A1. Supersaturated solutions</topic><topic>B1. Phosphates</topic><topic>Condensed matter: electronic structure, electrical, magnetic, and optical properties</topic><topic>Condensed matter: structure, mechanical and thermal properties</topic><topic>Dielectric, piezoelectric, ferroelectric and antiferroelectric materials</topic><topic>Dielectrics, piezoelectrics, and ferroelectrics and their properties</topic><topic>Electron, ion, and scanning probe microscopy</topic><topic>Exact sciences and technology</topic><topic>Kdp- and tgs-type crystals</topic><topic>Physics</topic><topic>Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc</topic><topic>Structure of solids and liquids; crystallography</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Thomas, T.N.</creatorcontrib><creatorcontrib>Land, T.A.</creatorcontrib><creatorcontrib>Martin, T.</creatorcontrib><creatorcontrib>Casey, W.H.</creatorcontrib><creatorcontrib>DeYoreo, J.J.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of crystal growth</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Thomas, T.N.</au><au>Land, T.A.</au><au>Martin, T.</au><au>Casey, W.H.</au><au>DeYoreo, J.J.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>AFM investigation of step kinetics and hillock morphology of the {1 0 0} face of KDP</atitle><jtitle>Journal of crystal growth</jtitle><date>2004-01-01</date><risdate>2004</risdate><volume>260</volume><issue>3</issue><spage>566</spage><epage>579</epage><pages>566-579</pages><issn>0022-0248</issn><eissn>1873-5002</eissn><coden>JCRGAE</coden><abstract>Step velocities and hillock slopes on the {1
0
0} face of KDP were measured over a supersaturation range of 0<
σ<0.15, where
σ is the supersaturation. The formation of macrosteps and their evolution with distance from the hillock top were also observed. Hillock slope depended linearly on supersaturation and hillock geometry. The two non-equivalent sectors exhibited different slopes and step velocities. AFM shows an elementary step height of 3.7
Å, or half the unit cell height, whereas previous interferometric experiments assumed the elementary step was a unit cell. Values of the step edge energy (
α), the kinetic coefficients for the slow and fast directions (
β
S and
β
F), and the activation energies for slow and fast step motion (
E
a,S and
E
a,F) were calculated to be 24.0
erg/cm
2, 0.071
cm/s, 0.206
cm/s, 0.26
eV/molecule, and 0.21
eV/molecule, respectively. Analysis of macrostep evolution including the dependence of step height on time and terrace width on distance were performed and compared to predictions of published models. The results do not allow us to distinguish between a shock wave model and a continuous step-doubling model. Analysis within the latter model leads to a characteristic adsorption time for impurities (
λ
−1) of 0.0716
s.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jcrysgro.2003.08.054</doi><tpages>14</tpages></addata></record> |
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| subjects | A1. Atomic force microscopy A1. Characterization A1. Crystal morphology A1. Supersaturated solutions B1. Phosphates Condensed matter: electronic structure, electrical, magnetic, and optical properties Condensed matter: structure, mechanical and thermal properties Dielectric, piezoelectric, ferroelectric and antiferroelectric materials Dielectrics, piezoelectrics, and ferroelectrics and their properties Electron, ion, and scanning probe microscopy Exact sciences and technology Kdp- and tgs-type crystals Physics Scanning probe microscopy: scanning tunneling, atomic force, scanning optical, magnetic force, etc Structure of solids and liquids crystallography |
| title | AFM investigation of step kinetics and hillock morphology of the {1 0 0} face of KDP |
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