@article{kevan_surface_1985,
	title = {Surface states and reconstruction on {Ge}(001)},
	volume = {32},
	url = {http://link.aps.org/doi/10.1103/PhysRevB.32.2344},
	doi = {10.1103/PhysRevB.32.2344},
	abstract = {High-resolution angle-resolved photoemission and low-energy electron diffraction (LEED) studies are reported which investigate the relationship between a recently discovered metallic or nearly metallic surface state and an order-disorder transition on Ge(001). Careful and systematic studies of this state’s angle- and temperature-dependent photoemission intensity lead to conclusions concerning the real-space character of the elementary excitation in this transition and the driving force for formation of the ordered c(4×2) low-temperature state. Comparisons to changes in the LEED pattern relate the onset of the metallic intensity to the formation of a phase in which surface dimers are randomly oriented with respect to each other. The data are most consistent with the flipping of a single dimer as the elementary excitation in the disordering transition. Evidence for a short-range driving force, probably involving interactions between dangling bonds on nearest neighboring dimers, is presented. The conclusions allow direct measurement of the fraction of flipped dimers on the surface as a function of temperature.},
	number = {4},
	urldate = {2011-04-20},
	journal = {Physical Review B},
	author = {Kevan, S. D.},
	year = {1985},
	pages = {2344},
}

{"_id":"FAqfnPc9noGWuLcct","bibbaseid":"kevan-surfacestatesandreconstructiononge001-1985","author_short":["Kevan, S. D."],"bibdata":{"bibtype":"article","type":"article","title":"Surface states and reconstruction on Ge(001)","volume":"32","url":"http://link.aps.org/doi/10.1103/PhysRevB.32.2344","doi":"10.1103/PhysRevB.32.2344","abstract":"High-resolution angle-resolved photoemission and low-energy electron diffraction (LEED) studies are reported which investigate the relationship between a recently discovered metallic or nearly metallic surface state and an order-disorder transition on Ge(001). Careful and systematic studies of this state’s angle- and temperature-dependent photoemission intensity lead to conclusions concerning the real-space character of the elementary excitation in this transition and the driving force for formation of the ordered c(4×2) low-temperature state. Comparisons to changes in the LEED pattern relate the onset of the metallic intensity to the formation of a phase in which surface dimers are randomly oriented with respect to each other. The data are most consistent with the flipping of a single dimer as the elementary excitation in the disordering transition. Evidence for a short-range driving force, probably involving interactions between dangling bonds on nearest neighboring dimers, is presented. The conclusions allow direct measurement of the fraction of flipped dimers on the surface as a function of temperature.","number":"4","urldate":"2011-04-20","journal":"Physical Review B","author":[{"propositions":[],"lastnames":["Kevan"],"firstnames":["S.","D."],"suffixes":[]}],"year":"1985","pages":"2344","bibtex":"@article{kevan_surface_1985,\n\ttitle = {Surface states and reconstruction on {Ge}(001)},\n\tvolume = {32},\n\turl = {http://link.aps.org/doi/10.1103/PhysRevB.32.2344},\n\tdoi = {10.1103/PhysRevB.32.2344},\n\tabstract = {High-resolution angle-resolved photoemission and low-energy electron diffraction (LEED) studies are reported which investigate the relationship between a recently discovered metallic or nearly metallic surface state and an order-disorder transition on Ge(001). Careful and systematic studies of this state’s angle- and temperature-dependent photoemission intensity lead to conclusions concerning the real-space character of the elementary excitation in this transition and the driving force for formation of the ordered c(4×2) low-temperature state. Comparisons to changes in the LEED pattern relate the onset of the metallic intensity to the formation of a phase in which surface dimers are randomly oriented with respect to each other. The data are most consistent with the flipping of a single dimer as the elementary excitation in the disordering transition. Evidence for a short-range driving force, probably involving interactions between dangling bonds on nearest neighboring dimers, is presented. The conclusions allow direct measurement of the fraction of flipped dimers on the surface as a function of temperature.},\n\tnumber = {4},\n\turldate = {2011-04-20},\n\tjournal = {Physical Review B},\n\tauthor = {Kevan, S. D.},\n\tyear = {1985},\n\tpages = {2344},\n}\n\n\n\n","author_short":["Kevan, S. D."],"key":"kevan_surface_1985","id":"kevan_surface_1985","bibbaseid":"kevan-surfacestatesandreconstructiononge001-1985","role":"author","urls":{"Paper":"http://link.aps.org/doi/10.1103/PhysRevB.32.2344"},"metadata":{"authorlinks":{}},"html":""},"bibtype":"article","biburl":"https://bibbase.org/zotero/robertorobles","dataSources":["8vvu6PNxwEyxJxvhj"],"keywords":[],"search_terms":["surface","states","reconstruction","001","kevan"],"title":"Surface states and reconstruction on Ge(001)","year":1985}