Stephen J Pennycook
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Explore the profile of Stephen J Pennycook including associated specialties, affiliations and a list of published articles.
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226
Citations
2253
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Recent Articles
1.
Loh L, Ning S, Kieczka D, Chen Y, Yang J, Wang Z, et al.
ACS Nano
. 2025 Feb;
19(6):6195-6208.
PMID: 39920041
Defect complexes can induce beneficial functionalities in two-dimensional (2D) semiconductors. However, understanding their formation mechanism with single-atom sensitivity has proven to be challenging for light elements using conventional transmission electron...
2.
Lu B, Niu Y, Chen Q, Wong P, Guo Q, Jiang W, et al.
Nano Lett
. 2024 Dec;
25(1):35-40.
PMID: 39689902
Spin pumping has been reported on interfaces formed with ferromagnetic metals and layered transition-metal dichalcogenides (TMDs), as signified by enhanced Gilbert damping parameters extracted from magnetodynamics measurements. However, whether the...
3.
Li A, Zeiger P, He Z, Xu M, Pennycook S, Rusz J, et al.
Phys Rev Lett
. 2024 Aug;
133(4):046101.
PMID: 39121401
Phonon dispersion relations are widely used to elucidate the vibrational properties of materials. As an emerging technique, momentum-resolved vibrational spectroscopy in scanning transmission electron microscopy offers an unparalleled approach to...
4.
Lyu P, Wang Z, Guo N, Su J, Li J, Qi D, et al.
J Am Chem Soc
. 2024 Jul;
146(30):20604-20614.
PMID: 39021150
The pursuit of robust, long-range magnetic ordering in two-dimensional (2D) materials holds immense promise for driving technological advances. However, achieving this goal remains a grand challenge due to enhanced quantum...
5.
Xu M, Li A, Pennycook S, Gao S, Zhou W
Phys Rev Lett
. 2023 Nov;
131(18):186202.
PMID: 37977630
Visualization of individual electronic states ascribed to specific unoccupied orbitals at the atomic scale can reveal fundamental information about chemical bonding, but it is challenging since bonding often results in...
6.
Dan J, Waqar M, Erofeev I, Yao K, Wang J, Pennycook S, et al.
Sci Adv
. 2023 Oct;
9(42):eadj0904.
PMID: 37851810
A continuing challenge in atomic resolution microscopy is to identify significant structural motifs and their assembly rules in synthesized materials with limited observations. Here, we propose and validate a simple...
7.
Zhu J, Hu Z, Guo S, Luo R, Yu M, Li A, et al.
Innovation (Camb)
. 2023 Sep;
4(6):100502.
PMID: 37701921
Twin boundaries (TBs) in transition metal dichalcogenides (TMDs) constitute distinctive one-dimensional electronic systems, exhibiting intriguing physical and chemical properties that have garnered significant attention in the fields of quantum physics...
8.
Xu M, Bao D, Li A, Gao M, Meng D, Li A, et al.
Nat Mater
. 2023 Mar;
22(5):612-618.
PMID: 36928385
Correlation of lattice vibrational properties with local atomic configurations in materials is essential for elucidating functionalities that involve phonon transport in solids. Recent developments in vibrational spectroscopy in a scanning...
9.
Tian H, Ma Y, Li Z, Cheng M, Ning S, Han E, et al.
Nature
. 2023 Mar;
615(7950):56-61.
PMID: 36859579
Correlating atomic configurations-specifically, degree of disorder (DOD)-of an amorphous solid with properties is a long-standing riddle in materials science and condensed matter physics, owing to difficulties in determining precise atomic...
10.
Guzman R, Ning S, Zhang R, Liu H, Ma Y, Zhang Y, et al.
ACS Nano
. 2023 Jan;
17(3):2450-2459.
PMID: 36716185
Self-intercalation of native magnetic atoms within the van der Waals (vdW) gap of layered two-dimensional (2D) materials provides a degree of freedom to manipulate magnetism in low-dimensional systems. Among various...