A Natural 2D Heterostructure [Pb3.1Sb0.9S4][AuxTe2-x] with Large Transverse Nonsaturating Negative Magnetoresistance and High Electron Mobility

被引:11
作者
Chen, Haijie [1 ,3 ]
He, Jiangang [2 ]
Malliakas, Christos D. [1 ]
Stoumpos, Constantinos C. [1 ]
Rettie, Alexander J. E. [3 ]
Bao, Jin-Ke [3 ]
Chung, Duck Young [3 ]
Kwok, Wai-Kwong [3 ]
Wolverton, Christopher [2 ]
Kanatzidis, Mercouri G. [1 ,2 ,3 ]
机构
[1] Northwestern Univ, Dept Chem, 2145 Sheridan Rd, Evanston, IL 60208 USA
[2] Northwestern Univ, Dept Mat Sci & Engn, Evanston, IL 60208 USA
[3] Argonne Natl Lab, Div Mat Sci, 9700 S Cass Ave, Argonne, IL 60439 USA
关键词
CHARGE-DENSITY-WAVE; CRYSTAL-STRUCTURE; FERROMAGNETISM; TRANSITION; DEPOSIT; MEMBER;
D O I
10.1021/jacs.9b02599
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
We report the two-dimensional (2D) natural hetero-structure [Pb3.1Sb0.9S4][AuxTe2-x] (x = 0.52-0.36) which shows anomalous, transverse nonsaturating negative magnetoresistance (MR). For x = 0.52, the material has a commensurately modulated structure with alternating [Pb3.1Sb0.9S4] rocksalt layers and atomically thin [AuxTe2-x] sheets, as determined by single-crystal X-ray diffraction using a (3 + 1)-dimensional space group; for other x compositions, the modulated structure is absent and the Au and Te atoms are disordered. The transport properties in this system at low temperature (<100 K) are dominated by an unusual 2D hopping mechanism, while at room temperature a high carrier mobility of similar to 1352 cm(2) V-1 s(-1) obtained (x = 0.36). The confined electrons within the [AuxTe2-x] layers are also exposed to interlayer coupling with the insulating [Pb3.1Sb0.9S4] layers, and as a result, the properties of the heterostructures emerge not only from the constituent layers but also the interactions between them. Furthermore, the various Au and Te coordination patterns found in the [AuxTe2-x] sheets as a function of x further contribute to a unique electronic structure that leads to the anomalous nonsaturating negative MR with different field dependent behaviors. First-principles calculations indicate that the [AuxTe2-x] sheets are responsible for the unusual electrical transport properties in this 2D system.
引用
收藏
页码:7544 / 7553
页数:10
相关论文
共 66 条
[1]   Large, non-saturating magnetoresistance in WTe2 [J].
Ali, Mazhar N. ;
Xiong, Jun ;
Flynn, Steven ;
Tao, Jing ;
Gibson, Quinn D. ;
Schoop, Leslie M. ;
Liang, Tian ;
Haldolaarachchige, Neel ;
Hirschberger, Max ;
Ong, N. P. ;
Cava, R. J. .
NATURE, 2014, 514 (7521) :205-+
[2]  
[Anonymous], 2009, X RED X SHAP X AR
[3]   GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].
BAIBICH, MN ;
BROTO, JM ;
FERT, A ;
VANDAU, FN ;
PETROFF, F ;
EITENNE, P ;
CREUZET, G ;
FRIEDERICH, A ;
CHAZELAS, J .
PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475
[4]   Jaszczakite, [(Bi, Pb)3S3][AuS2], a new mineral species from Nagyborzsony, Hungary [J].
Bindi, Luca ;
Paar, Werner H. .
EUROPEAN JOURNAL OF MINERALOGY, 2017, 29 (04) :673-677
[5]   PROJECTOR AUGMENTED-WAVE METHOD [J].
BLOCHL, PE .
PHYSICAL REVIEW B, 1994, 50 (24) :17953-17979
[6]   Gigantic negative magnetoresistance in the bulk of a disordered topological insulator [J].
Breunig, Oliver ;
Wang, Zhiwei ;
Taskin, A. A. ;
Lux, Jonathan ;
Rosch, Achim ;
Ando, Yoichi .
NATURE COMMUNICATIONS, 2017, 8
[7]   Magnetism in two-dimensional van der Waals materials [J].
Burch, Kenneth S. ;
Mandrus, David ;
Park, Je-Geun .
NATURE, 2018, 563 (7729) :47-52
[8]   Chiral Anomaly and Diffusive Magnetotransport in Weyl Metals [J].
Burkov, A. A. .
PHYSICAL REVIEW LETTERS, 2014, 113 (24)
[9]   High Hole Mobility and Nonsaturating Giant Magnetoresistance in the New 2D Metal NaCu4Se4 Synthesized by a Unique Pathway [J].
Chen, Haijie ;
Rodrigues, Joao N. B. ;
Rettie, Alexander J. E. ;
Song, Tze-Bin ;
Chica, Daniel G. ;
Su, Xianli ;
Bao, Jin-Ke ;
Chung, Duck Young ;
Kwok, Wai-Kwong ;
Wagner, Lucas K. ;
Kanatzidis, Mercouri G. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2019, 141 (01) :635-642
[10]   Charge Density Wave and Narrow Energy Gap at Room Temperature in 2D Pb3-xSb1+xS4Te2-δ with Square Te Sheets [J].
Chen, Haijie ;
Malliakas, Christos D. ;
Narayan, Awadhesh ;
Fan, Lei ;
Chung, Duck Young ;
Wagner, Lucas K. ;
Kwok, Wai-Kwong ;
Kanatzidis, Mercouri G. .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2017, 139 (32) :11271-11276