Observation of structure changes for Li/Cu(111) by photoemission from Li core and quantum-well states

Via photoemission in the near UV from discrete quantum well states, four different types of atom rearrangements are observed for Cu (111)/ Li . In the monolayer range a gradual energy shift reflects a gradual compression of the Li layer as more atoms are adsorbed. The onset of Li substitution and formation of a (2×2) structure when, at RT, monolayer Li coverage is exceeded is monitored via the appearance of a quantum well state characteristic of the new phase. A small energy shift indicates that, if it is cooled (170 K), the new structure is unstable with respect to Li adsorption. Finally, an energy downshift with increasing coverage observed for a state characteristic of 2 ML Li is ascribed to an increasing area for one-atomic-layer-high islands formed by Li atoms on top of the first full layer.

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Quantum Well States in Metallic Superlattices

Journal de Physique I ◽

10.1051/jp1:1996152 ◽

1996 ◽

Vol 6 (11) ◽

pp. 1461-1467 ◽

Cited By ~ 2

Author(s):

C. Sommers ◽

P. M. Levy

Keyword(s):

Quantum Well ◽

Quantum Well States

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Erratum: Observation of monolayer valence band spin-orbit effect and induced quantum well states in MoX2

Nature Communications ◽

10.1038/ncomms6136 ◽

2014 ◽

Vol 5 (1) ◽

Cited By ~ 4

Author(s):

Nasser Alidoust ◽

Guang Bian ◽

Su-Yang Xu ◽

Raman Sankar ◽

Madhab Neupane ◽

...

Keyword(s):

Quantum Well ◽

Valence Band ◽

Spin Orbit ◽

Quantum Well States

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Calculated surface, image and quantum well states in Ag/Cu(111) system

Physica B Condensed Matter ◽

10.1016/j.physb.2013.04.042 ◽

2013 ◽

Vol 424 ◽

pp. 32-38 ◽

Cited By ~ 2

Author(s):

Doina Bejan

Keyword(s):

Quantum Well ◽

Surface Image ◽

Quantum Well States

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d-Band Quantum Well States

Physical Review Letters ◽

10.1103/physrevlett.84.3410 ◽

2000 ◽

Vol 84 (15) ◽

pp. 3410-3413 ◽

Cited By ~ 49

Author(s):

D.-A. Luh ◽

J. J. Paggel ◽

T. Miller ◽

T.-C. Chiang

Keyword(s):

Quantum Well ◽

Quantum Well States

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Electronic transport properties of quantum-well states in ultrathin Pb (111) films

Physical Review B ◽

10.1103/physrevb.78.245405 ◽

2008 ◽

Vol 78 (24) ◽

Cited By ~ 23

Author(s):

Nobuhiro Miyata ◽

Kotaro Horikoshi ◽

Toru Hirahara ◽

Shuji Hasegawa ◽

C. M. Wei ◽

...

Keyword(s):

Quantum Well ◽

Transport Properties ◽

Electronic Transport ◽

Electronic Transport Properties ◽

Quantum Well States

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The impact of number of repeats N on the interlayer exchange in $$[\text {Fe/MgO}]_{N} $$(001) superlattices

Scientific Reports ◽

10.1038/s41598-021-81441-y ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Tobias Warnatz ◽

Fridrik Magnus ◽

Nanny Strandqvist ◽

Sarah Sanz ◽

Hasan Ali ◽

...

Keyword(s):

Quantum Well ◽

Exchange Coupling ◽

Neutron Reflectometry ◽

Interlayer Exchange Coupling ◽

Magnetic Switching ◽

Interlayer Exchange ◽

Quantum Well States ◽

The Impact ◽

Polarized Neutron Reflectometry ◽

Mgo Layers

AbstractThe strength of the interlayer exchange coupling in [Fe/MgO]$$_N$$ N (001) superlattices with 2 ≤ N ≤ 10 depends on the number of bilayer repeats (N). The exchange coupling is antiferromagnetic for all the investigated thicknesses while being nine times larger in a sample with N = 4 as compared to N = 2. The sequence of the magnetic switching in two of the samples (N = 4, N = 8) is determined using polarized neutron reflectometry. The outermost layers are shown to respond at the lowest fields, consistent with having the weakest interlayer exchange coupling. The results are consistent with the existence of quantum well states defined by the thickness of the Fe and the MgO layers as well as the number of repeats (N) in [Fe/MgO]$$ _{N}$$ N (001)superlattices.

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