Fermi surface gapping and nesting in the surface phase transition of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mi mathvariant="normal">Sn</mml:mi><mml:mo>∕</mml:mo><mml:mi mathvariant="normal">Cu</mml:mi><mml:mrow><mml:mo>(</mml:mo><mml:mn>100</mml:mn><mml:mo>)</mml:mo></mml:mrow></mml:mrow></mml:math>

Martínez-Blanco, J.; Joco, V.; Ascolani, H.; Tejeda, Antonio; Quirós, C.; Panaccione, G.; Balasubramanian, T.; Segovia, P.; Michel, E. G.

doi:10.1103/physrevb.72.041401

Cited by 28 publications

(70 citation statements)

References 21 publications

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“…Temperature dependence of the energy gap was also measured for Sn/Cu(001) [17]. In this case, however, the upper band was not observed, possibly because of the existence of the metallic band at E F from the perpendicularly-oriented domains.…”

Section: Temperature Dependence Of the Electronic Structurementioning

confidence: 95%

“…The phase transitions observed on the other surfaces such as In/Si(111) [3], In/Cu(001) [4,15,16], and Sn/Cu(001) [17] have also been suggested as due to the Peierls mechanism. Among these transitions, those on Cu(001) covered with In and Sn exhibit quite similar characteristics such as ground-state structures commensurate with the substrates, high-temperature Fermi surfaces slightly displaced from the low-temperature surface-Brillouine-zone boundaries, and large energy gaps in the ground states, which are considered as characteristic to strong-coupling CDW phase transitions.…”

Section: Introductionmentioning

confidence: 99%

“…It, however, is usually difficult to determine the absolute energy gap experimentally [3,17,[94][95][96][97][98], because photoemission is sensitive only to occupied electronic states and angle-resolved inverse photoemission lacks energy resolution sufficient for the precise determination of energy gaps. The CDW ground states in the surface systems have superstructures commensurate to the substrate lattice.…”

Section: Temperature Dependence Of the Electronic Structurementioning

confidence: 99%

“…Based on the fact that the Fermi surface constituted by the adsorbate-induced surface resonance band is insensitive to the difference between In and Sn, Martínez-Blanco et al [17] suggested that the substrate plays a main role and noted "that the Cu(100) surface is prone to an instability, which is triggered by an adsorbate layer." This idea is interesting.…”

Section: Cu-11mentioning

confidence: 99%

“…[15] and later discussed also for Sn/Cu(001) [17]. In order to reveal the driving mechanism of the surface phase transitions, it was desirable to study the critical behavior.…”

Section: Mechanism Of the Phase Transitions On Cu(001) Covered With Hmentioning

confidence: 99%

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Surface Peierls transition on Cu(001) covered with heavier p-block metals

Aruga

2006

Surface Science Reports

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The Cu(001) surface covered with submonolayer coverages of In and Sn undergoes phase transitions at around 350-400 K. The transition is associated with the surface electronic structure change between low-temperature gapped and high-temperature ungapped ones. The energy gap positions in the k space coincide with the surface Brillouine zone boundaries of the low-temperature phases. These observations imply that the phase transitions are classified into the Peierls-type charge density wave (CDW) phase transition. The CDW ground states are characterized by large overall CDW gaps and long CDW correlation lengths. Structural studies show that the transitions are associated with order-disorder processes. This suggests that these are in strong-coupling regime. However, the associated gapped-ungapped change suggests that the electronic terms play significant role, in contradiction with the strong-coupling scenario. Based on the results of recent works on precise temperature dependence of the CDW gap and critical X-ray scattering, the origin of this dual nature and the detailed mechanism of the phase transition is discussed. It is suggested that the electronic entropy of the CDW ground state is not governed by the overall energy gap but by the gap between the upper band minimum and the Fermi level of the whole system. The dual nature of the surface Peierls transition on Cu(001) originates, on one hand, from the existence at metal surfaces of the two characteristic energy gaps: the overall gap, which determines the CDW stabilization energy, and the upper gap, which governs the electronic entropy. On the other hand, the CDW correlation length is suggested to play another significant role in determining the nature of the Peierls transition. The classification of the Peierls transisions according to the CDW correlation length and the gap size is discussed. It is suggested that the surface Peierls transition on metal-covered Cu(001) covered with heavier p-block metallic elements are qualitatively different from both the weak-coupling CDW transition, with long CDW correlation length and small gaps, and the strong-coupling CDW transitions, with short correlation lengths and large gaps, and should be classified into the third class, which is characterized by long coherence and strong coupling.

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Section: Temperature Dependence Of the Electronic Structurementioning

confidence: 95%

Section: Introductionmentioning

confidence: 99%

Section: Temperature Dependence Of the Electronic Structurementioning

confidence: 99%

Section: Cu-11mentioning

confidence: 99%

“…[15] and later discussed also for Sn/Cu(001) [17]. In order to reveal the driving mechanism of the surface phase transitions, it was desirable to study the critical behavior.…”

Section: Mechanism Of the Phase Transitions On Cu(001) Covered With Hmentioning

confidence: 99%

See 3 more Smart Citations

Surface Peierls transition on Cu(001) covered with heavier p-block metals

Aruga

2006

Surface Science Reports

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Surface Structure and Temperature‐Reversible Phase Transition of Sn on W(110) Surface

Banik

Nakagawa

2023

Physica Status Solidi (b)

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The growth of Sn overlayers on the W(110) surface is investigated using low‐energy electron diffraction analysis. The structural investigation reveals Sn adsorption sites on the W(110) for (1 × 3) and (1 × 4) structures. During the formation of the (1 × 3) structure, Sn atoms are only adsorbed on the threefold hollow sites. However, at higher coverages, Sn atoms are adsorbed on the fourfold hollow sites after the threefold hollow sites are filled up to form the (1 × 4) structure, resulting in a dense overlayer structure. Both structures are overlayer with no alloy formation at the interface. The (1 × 3) phase exhibits a temperature‐reversible phase transition below ≈270 K. At low temperatures, a phase with long‐range order is developed.

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