English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Layered heterostructure materials with two different functional buildingblocks can teach us about emergent physical properties and phenomena arisingfrom interactions between the layers. We report the intergrowth compoundsKLa$M$$_{1-x}$Te$_{4}$ ($M$ = Mn, Zn; $x\approx$ 0.35) featuring two chemicallydistinct alternating layers [LaTe$_3$] and [K$M$$_{1-x}$Te]. Their crystalstructures are incommensurate, determined by single X-ray diffraction for theMn compound and transmission electron microscope (TEM) study for the Zncompound. KLaMn$_{1-x}$Te$_{4}$ crystallizes in the orthorhombic superspacegroup $Pmnm$(01/2${\gamma}$)$s$00 with lattice parameters $a$ = 4.4815(3){\AA}, $b$ = 21.6649(16) {\AA} and $c$ = 4.5220(3) {\AA}. It exhibits chargedensity wave (CDW) order at room temperature with a modulation wave vector$\mathbf{q}$ = 1/2$\mathbf{b}$* + 0.3478$\mathbf{c}$* originating fromelectronic instability of Te-square nets in [LaTe$_{3}$] layers. The Mn analogexhibits a cluster spin glass behavior with spin freezing temperature$T_{\mathrm{f}}$ $\approx$ 5 K attributed to disordered Mn vacancies andcompeting magnetic interactions in the [Mn$_{1-x}$Te] layers. The Zn analogalso has charge density wave order at room temperature with a similar$\mathbf{q}$-vector having the $\mathbf{c}$* component ~ 0.346 confirmed byselected-area electron diffraction (SAED). Electron transfer from[K$M_{1-x}$Te] to [LaTe$_{3}$] layers exists in KLa$M_{1-x}$Te$_{4}$, leadingto an enhanced electronic specific heat coefficient. The resistivities ofKLa$M_{1-x}$Te$_{4}$ ($M$ = Mn, Zn) exhibit metallic behavior at hightemperatures and an upturn at low temperatures, suggesting partial localizationof carriers in the [LaTe$_{3}$] layers with some degree of disorder associatedwith the $M$ atom vacancies in the [$M_{1-x}$Te] layers.

Quasi-two-dimensional heterostructures (K$M_{1-x}$Te)(LaTe$_{3}$) ($M$ = Mn, Zn) with charge density waves